Laser beam alignment driving circuit board and ion trap quantum computer

Abstract

The present invention discloses a laser beam alignment driving circuit board, comprising a digital analog conversion module and an output channel module; the input end of the digital analog conversion module is electrically connected to the main control board of the ion trap quantum computer, and is used to receive the digital signal sent by the main control board of the ion trap quantum computer and convert the digital signal into an analog signal; there are multiple output channel modules, and the input end of each output channel module is electrically connected to the output end of the digital analog conversion module, and the output end is electrically connected to the corresponding piezoelectric ceramic of the ion trap quantum computer, and is used to filter and amplify the analog signal and then send it to the corresponding piezoelectric ceramic, thereby driving and controlling the movement of the corresponding piezoelectric ceramic to achieve control of the position of the laser beam. The present invention can achieve precise control of multiple laser beams. The present invention also discloses an ion trap quantum computer.

Description

Technical Field

[0001] The invention relates to a driving circuit, in particular to a laser beam alignment driving circuit board and an ion trap quantum computer. Background Art

[0002] An ion trap quantum computer is a device that uses direct current and high-frequency alternating current to form an electric field region so that ions can be stably trapped in the electric field region. In fact, the state operation of ions is achieved by controlling the specific parameters of the laser. However, for ion trap quantum computers, the ions they control are not just one, but several to hundreds. Each ion is an operable quantum bit. To achieve high-speed computing in ion trap quantum computers, it is necessary to accurately aim the laser at each ion. In current ion trap quantum computers, laser alignment of ions is achieved using an acousto-optic modulator. However, this type of acousto-optic modulator is expensive and has a limited number of operable channels, making it difficult to adapt to the current state operations of dozens or even hundreds of ions.

[0003] In addition to using acousto-optic modulators, there are also specialized piezoelectric controllers, such as the MD693B. However, this type of device has problems such as a small number of laser beams that can be controlled simultaneously and high energy consumption, as well as poor stability and high noise. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art, one of the objectives of the present invention is to provide a laser beam alignment driving circuit board, which can solve the problem that the ion trap quantum computer in the prior art cannot control multiple laser beams.

[0005] A second object of the present invention is to provide an ion trap quantum computer, which can solve the problem that the ion trap quantum computer in the prior art cannot control multiple laser beams.

[0006] One of the purposes of the present invention is achieved by the following technical solution:

[0007] A laser beam alignment driving circuit board is applied to an ion trap quantum computer; the laser beam alignment driving circuit board comprises a digital analog conversion module and an output channel module; wherein the input end of the digital analog conversion module is electrically connected to a main control board of the ion trap quantum computer, and is used to receive a digital signal sent by the main control board of the ion trap quantum computer and convert the digital signal into an analog signal;

[0008] There are multiple output channel modules, and the input end of each output channel module is electrically connected to the output end of the digital-to-analog conversion module, and the output end is electrically connected to the corresponding piezoelectric ceramics of the ion trap quantum computer, so as to filter and amplify the analog signal and send it to the corresponding piezoelectric ceramic, thereby driving and controlling the movement of the corresponding piezoelectric ceramic to achieve control of the position of the laser beam.

[0009] Furthermore, the output channel module includes a low-pass filter and an amplifier; the low-pass filter is used to filter the analog signal; the amplifier is used to amplify the filtered analog signal;

[0010] The output channel module includes an operational amplifier IC1, an operational amplifier IC2, an RC filter circuit composed of a resistor R1, a resistor R2, and a capacitor C1, a capacitor C20, a capacitor C21, a diode array, a resistor R3, a resistor R4, a resistor R5, a capacitor C3, and a filter circuit composed of a resistor R6, a resistor R10, and a resistor R11; wherein the inverting input terminal of the operational amplifier IC2 is electrically connected to the output terminal of the operational amplifier IC2, and the non-inverting input terminal is electrically connected to the corresponding output terminal of the digital-to-analog conversion module through the RC filter circuit composed of the resistor R1, the resistor R2, and the capacitor C1, for filtering the analog signal;

[0011] The non-inverting input terminal of the operational amplifier IC1 is electrically connected to the output terminal of the operational amplifier IC2, and the output terminal is electrically connected to the corresponding piezoelectric ceramic through a filter circuit composed of a resistor R6, a resistor R10, and a resistor R11, for amplifying the filtered analog signal and outputting it to the corresponding piezoelectric ceramic to drive the movement of the piezoelectric ceramic;

[0012] The output end of the operational amplifier IC1 is also connected to ground through resistors R3, R4 and R5, and the inverting input end is connected between resistors R3 and R4;

[0013] The diode array includes a diode D2B, a diode D1A, a diode D1B, and a diode D2A; wherein the cathode of the diode D2A is connected between the operational amplifier IC1 and the operational amplifier IC2, and the anode is electrically connected to the inverting input terminal of the operational amplifier IC1 through the diode D2B; the cathode of the diode D1B is connected between the operational amplifier IC1 and the operational amplifier IC2, and the anode is electrically connected to the inverting input terminal of the operational amplifier IC1 through the diode D1A.

[0014] Furthermore, a second-order low-pass filter module is provided between each output channel module and the corresponding piezoelectric ceramic, and the second-order low-pass filter module is used to filter the analog signal output by the corresponding output channel module and output it to the piezoelectric ceramic; the second-order low-pass filter module includes a switch module and a second-order low-pass filter; wherein one end of the switch module is electrically connected to the output end of the corresponding output channel module, and the other end is electrically connected to the corresponding piezoelectric ceramic; the switch module is also electrically connected to the second-order low-pass filter; the switch module includes a switch SW1A, a switch SW1B, a resistor R10, and a resistor R11; the second-order low-pass filter includes an operational amplifier IC1A, a resistor R12, a capacitor C1, and a capacitor C2;

[0015] The input pin of the switch SW1A is electrically connected to the output end of the corresponding output channel module, the first output pin is electrically connected to the first output pin of the switch SW1B, the second output pin is electrically connected to the second output pin of the switch SW1B through the resistors R10 and R11, and the input pin of the switch SW1B is electrically connected to the piezoelectric ceramic;

[0016] The inverting input terminal of the operational amplifier IC1A is connected between the resistor R10 and the resistor R11 through the capacitor C1, the non-inverting input terminal is grounded, the positive power supply terminal is connected to the +4.5V power supply, the negative power supply terminal is connected to the -4.5V power supply, and the output terminal is connected between the resistor R10 and the resistor R11 through the capacitor C2; one end of the resistor R12 is connected between the capacitor C11 and the inverting input terminal of the operational amplifier IC1A, and the other end is connected between the capacitor C2 and the output terminal of the operational amplifier IC1A.

[0017] Furthermore, each output channel module is also provided with a monitoring module and an LED light; one end of the monitoring module is electrically connected to the corresponding output channel module, and the other end is electrically connected to the LED light, for monitoring the temperature of the corresponding output channel module and controlling the LED light to display a corresponding color to display the temperature of the corresponding output channel module;

[0018] The monitoring module includes an operational amplifier IC1D, a filter circuit composed of a resistor R13 and a resistor R14, a resistor R15 and a resistor R16; the LED lamp is a light emitting diode LD1D;

[0019] Among them, the inverting input terminal of the operational amplifier IC1D is electrically connected to the corresponding output channel module, and the non-inverting input terminal is connected to the 3.3V power supply through the resistor R13; one end of the resistor R14 is grounded, and the other end is connected between the resistor R13 and the operational amplifier IC1D; the negative power supply terminal of the operational amplifier IC1D is grounded, the positive power supply terminal is connected to the 3.3V power supply, and the non-inverting input terminal is also electrically connected to the output terminal of the operational amplifier IC1D through the resistor R15;

[0020] The output terminal of the operational amplifier IC1D is electrically connected to the light emitting diode LD1D via the resistor R16 to control the working state of the light emitting diode LD1D.

[0021] Furthermore, the digital-to-analog conversion module is communicatively connected to a main control board of the ion trap quantum computer via an SPI interface.

[0022] Furthermore, there are 8 output channel modules; the digital-to-analog conversion module includes a chip IC41 with model number AD5362BCPZ and a power supply filter module; wherein the chip IC41 is provided with 8 input terminals, which communicate with the ion trap quantum computer through the SPI protocol respectively; the chip IC41 is provided with 8 output terminals, which are electrically connected to the input terminals of the 8 output channel modules respectively; the multiple power supply terminals of the chip IC41 are also connected to the corresponding power supply through the corresponding power supply filter module, and the corresponding power supply includes a 3.3V power supply, a 5V power supply, a 11.5V power supply and a -4.5V power supply.

[0023] Furthermore, the laser beam alignment driving circuit board also includes a power supply module, which is electrically connected to the main control board, digital analog conversion module, and output channel module of the ion trap quantum computer, and is used to obtain power supply from the main control board of the ion trap quantum computer and convert the power supply into a corresponding internal working power supply, thereby providing working power for the digital analog conversion module and the output channel module.

[0024] Further, the power module includes a first power module, a second power module, and a third power module; wherein the first power module includes a 12V to 3.3V power module, a 12V to -4.5V power module, and a 12V to +4.5V power module, which are respectively used to convert the 12V power obtained from the main control board of the ion trap quantum computer into 3.3V power, -4.5V power, and +4.5 power; the second power module is used to convert the 12V power into 11.5V power; the third power module is used to convert the 12V power into a 200V power module;

[0025] The first power supply module includes a first LC filter circuit, a first filter circuit, a chip IC7, a second LC filter circuit, a resistor R19, and a resistor R20;

[0026] The power input end of the chip IC7 is connected to the 12V power supply through the second filter circuit and the first LC filter circuit, and the output end outputs the 3.3V power supply through the second LC filter circuit;

[0027] The first filter circuit includes a capacitor C26 and a capacitor C27 connected in parallel; one end of the capacitor C26 and the capacitor C27 is grounded, and the other end is connected between the first LC filter circuit and the chip IC7;

[0028] The first LC filter circuit includes a capacitor C52, a capacitor C53 and an inductor L4; one end of the capacitor C52 and the capacitor C53 is grounded, and the other end is electrically connected to the input end of the chip IC7 through the inductor L4;

[0029] The second LC filter circuit includes an inductor L1, a capacitor C28 and a capacitor C29; one end of the capacitor C28 and the capacitor C29 is grounded, and the other end is electrically connected to the output end of the chip IC1 through the inductor L1;

[0030] One end of the resistor R19 is electrically connected to the output end of the chip IC7 through the inductor L1, and the other end is grounded through the resistor R20;

[0031] The first power supply module also includes a second filter circuit, a chip IC9, a third LC filter circuit, a fourth LC filter circuit, a voltage regulator IC10, a voltage regulator IC11, a third filter circuit, a fourth filter circuit, a voltage regulator D3, a voltage regulator D1, a resistor R26, a resistor R25, a resistor R23, and a resistor R24; wherein the positive input terminal of the chip IC9 is connected to the 12V power supply through the second filter circuit and the first LC filter circuit, the negative input terminal is grounded, the positive output terminal is electrically connected to the input terminal of the voltage regulator IC10 through the third LC filter circuit, and the negative output terminal is electrically connected to the input terminal of the voltage regulator IC11 through the fourth LC filter circuit; wherein the chip IC9 is used to convert the 12V power supply into a +5V power supply and a -5V power supply respectively;

[0032] The second filter circuit includes a capacitor C35 and a capacitor C36; one end of the capacitor C35 and the capacitor C36 is grounded, and the other end is connected between the first LC filter circuit and the chip IC9;

[0033] The second LC filter circuit includes an inductor L3, a capacitor C42 and a capacitor C43; one end of the capacitor C42 and the capacitor C43 is grounded, and the other end is connected between the inductor L3 and the regulator IC10; the inductor L3 is also electrically connected to the positive output terminal of the chip IC9;

[0034] The third LC filter circuit includes an inductor L2, a capacitor C37 and a capacitor C38; one end of the capacitor C37 and the capacitor C43 is grounded, and the other end is connected between the inductor L2 and the regulator IC11; the inductor L2 is also electrically connected to the negative output terminal of the chip IC9;

[0035] The output end of the voltage regulator IC10 outputs +4.5V through the third filter circuit; the output end of the voltage regulator IC11 outputs -4.5V through the fourth filter circuit;

[0036] The third filter circuit includes a capacitor C45 and a capacitor C46; one end of the capacitor C45 and the capacitor C46 is grounded, and the other end is electrically connected to the output end of the voltage regulator IC10; the fourth filter circuit includes a capacitor C40 and a capacitor C41; one end of the capacitor C40 and the capacitor C41 is grounded, and the other end is electrically connected to the output end of the voltage regulator IC11;

[0037] One end of the diode D3 is grounded, and the other end is electrically connected to the output end of the voltage regulator IC10; one end of the diode D1 is grounded, and the other end is electrically connected to the output end of the voltage regulator IC11;

[0038] The second power supply module includes a fourth LC filter circuit, a voltage regulator IC8, a fifth filter circuit, a diode D2, a resistor R21 and a resistor R22; wherein the input end of the voltage regulator IC8 is connected to a 12V power supply through the fourth LC wave circuit, and the output end outputs a 11.5V power supply through the fifth filter circuit;

[0039] One end of the resistor R21 is electrically connected to the output end of the voltage regulator IC8, and the other end is grounded through the resistor R22; one end of the diode D2 is grounded, and the other end is electrically connected to the output end of the voltage regulator IC8;

[0040] The fourth LC filter circuit includes a capacitor C30, a capacitor C31 and an inductor L7; one end of the capacitor C3 and the capacitor C31 is grounded, and the other end is connected between the inductor L7 and the input end of the voltage regulator IC8; the fifth filter circuit includes a capacitor C33 and a capacitor C34; one end of the capacitor C33 and the capacitor C34 is grounded, and the other end is electrically connected to the output end of the voltage regulator IC8;

[0041] The third power supply module includes a fifth LC filter circuit, a voltage regulator IC12, a sixth LC filter circuit, a switch SW0, a capacitor C49, a resistor R27, a resistor R28, and a resistor R29; wherein the input end of the voltage regulator IC12 is connected to a 12V power supply through the fifth LC filter circuit, and the control end is electrically connected to the switch SW0; the input pin of the switch SW0 is grounded through the resistor R27, the second output pin is grounded through the resistor R28, and the first output pin is grounded through the resistor R29; through the control of the switch SW0, the output power of the output end of the voltage regulator IC12 is switched between a 100V power supply, a 150V power supply, and a 200V power supply;

[0042] The fifth LC filter circuit includes an inductor L6, a capacitor C47, and a capacitor C48; one end of the capacitor C47 is grounded, and the other end is electrically connected to the regulator IC12 through the inductor L6; one end of the capacitor C48 is grounded, and the other end is connected between the inductor L6 and the regulator IC12;

[0043] The sixth LC filter circuit includes capacitor C49, capacitor C50, inductor L5 and capacitor C51; one end of capacitor C49 is grounded, and the other end is electrically connected to the regulator IC12; one end of capacitor C50 and capacitor C51 is grounded, and the other end is electrically connected to the regulator IC12 through the inductor L5.

[0044] Furthermore, the laser beam alignment driving circuit board also includes a storage module, wherein the storage module is electrically connected to the main control board of the ion trap quantum computer and is used to store configuration parameters of the laser beam alignment driving circuit board, so that the main control board of the ion trap quantum computer can identify the laser beam alignment driving circuit board according to the configuration parameters.

[0045] The second object of the present invention is achieved by adopting the following technical solution:

[0046] An ion trap quantum computer comprises a main control board, a piezoelectric ceramic, a laser beam emitter and a laser beam driving circuit board used as one of the purposes of the present invention; the piezoelectric ceramic is used to drive the position of the laser beam emitter to move; the piezoelectric ceramic and the laser beam emitter are both multiple, and the number is the same as the number of output channel modules of the laser beam driving circuit board;

[0047] The main control board is electrically connected to the laser beam driving circuit board, and is used to send a control signal to the laser beam driving circuit board, so that the laser beam driving circuit board generates multiple driving signals according to the control signal, and outputs each driving signal to the corresponding piezoelectric ceramic, thereby driving the movement of the corresponding piezoelectric ceramic, thereby realizing the control of the laser emission position of the laser beam emitter.

[0048] Compared with the prior art, the present invention has the following beneficial effects:

[0049] The present invention provides a laser beam driving circuit board and combines it with the control of piezoelectric ceramics to achieve the position change of the laser beam, thereby achieving the precise emission of the laser beam; at the same time, multiple channels are provided to simultaneously control the position changes of multiple laser beams, thereby solving the problem of inaccurate laser beam control in the prior art; at the same time, the present invention can be directly embedded in an ion trap quantum computer and combined with the main control board of the ion trap quantum computer to achieve the emission control of the laser beam of the ion trap quantum computer, and has the characteristics of simple operation, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 A schematic diagram of the connection between a laser beam driving circuit board, a main control board of an ion trap quantum computer, a host computer, and piezoelectric ceramics provided by the present invention;

[0051] Figure 2 for Figure 1Circuit diagram of the digital-to-analog conversion module in;

[0052] Figure 3 for Figure 1 A circuit diagram of an output channel module in;

[0053] Figure 4 for Figure 1 A circuit diagram of a second-order low-pass filter in;

[0054] Figure 5 for Figure 1 Circuit diagram of the monitoring module in;

[0055] Figure 6 A circuit diagram of a first power supply module provided by the present invention;

[0056] Figure 7 A circuit diagram of a second power supply module provided by the present invention;

[0057] Figure 8 This is a circuit diagram of the third power supply module provided by the present invention. DETAILED DESCRIPTION

[0058] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0059] The present invention provides a preferred embodiment, a laser beam alignment driving circuit board, comprising a digital-to-analog conversion module and an output channel module.

[0060] Preferably, the driving circuit board is applied to an ion trap quantum computer. An ion trap quantum computer generally includes a main control board, a driving circuit board, and piezoelectric ceramics. The main control board is the main control center of the ion trap quantum computer, which communicates with the host computer to obtain control instructions sent by the host computer, and drives the movement of the piezoelectric ceramics through the driving circuit board to control the position of the laser beam and realize the precise emission of the laser beam.

[0061] Generally speaking, the main control board of an ion trap quantum computer is a FPAG control board.

[0062] Preferably, the digital-to-analog conversion module is connected to the main control board of the ion trap quantum computer to realize the conversion between digital signals and analog signals. The present invention drives the movement of piezoelectric ceramics by driving the circuit board to ensure the accurate emission of the laser beam. When the driving circuit board is working, it controls the movement of the piezoelectric ceramics by receiving the driving signal sent by the main control board. Therefore, the digital-to-analog conversion module converts the digital signal sent from the main control board into an analog signal, that is, a corresponding voltage, so as to control the movement of the corresponding piezoelectric ceramics. More preferably, the digital-to-analog conversion module is connected to the main control board through an SPI interface. Specifically, the digital-to-analog conversion module can be connected to the main control board through 8 digital signal lines. Among them, 4 digital lines are combined into a serial peripheral interface protocol (SPI), and the remaining four can realize other functions, such as detecting whether the transmitted data is wrong.

[0063] Preferably, the digital-to-analog conversion module may adopt a chip of model AD5362BCPZ, which can output a voltage of 0V~10V, and can reduce the amplification voltage required in the subsequent voltage amplification circuit; it can output 8-channel voltage at the same time, so as to control the positions of 8 laser beams at the same time; it has a 16-bit high-precision resolution, so as to accurately control the position of each laser beam; and it can be controlled through the SIP protocol.

[0064] Specifically, Figure 2 As shown, the digital-to-analog conversion module includes a chip IC41 and a power supply filter module.

[0065] Among them, port 46 (SCLK), port 47 (SDI), port 49 (SDO), port 45 (SYNC), port 5 (BUSY), port 2 (CLR), port 1 (LDAC), and port 48 (PEC) of chip IC1 are respectively connected to the main control board for communication to obtain the digital signal sent by the main control board.

[0066] Port 34 (VOUT1), port 35 (VOUT2), port 36 (VOUT3), port 37 (VOUT4), port 15 (VOUT5), port 16 (VOUT6), port 17 (VOUT7), and port 18 (VOUT8) of chip IC41 are electrically connected to the input terminals of the eight output channel modules in a one-to-one correspondence, and are used to output the converted analog signals to the corresponding output channel modules respectively. The conversion of digital signals to analog signals is realized by chip IC41.

[0067] Preferably, since the chip IC41 needs to use multiple power supplies when working, such as 3.3V, -4.5V, 11.5V, 5V, etc. In order to ensure the stability of each power supply, the power supply filter module includes a first 3.3V power supply filter module, a second 3.3V power supply filter module, a 5V power supply filter module, a 11.5V power supply filter module and a -4.5V power supply filter module, which are used to filter the corresponding power supplies of the chip IC41 respectively.

[0068] The first 3.3V power supply filter module includes a chip IC5. Port 4 (VCC) and port 3 (MR) of the chip IC5 are connected to the 3.3V power supply (P3V3), port 1 (VSS) is grounded, and port 2 (RST) is electrically connected to port 3 (RESET) of the chip IC41, which is used to filter the 3.3V power supply for use by the chip IC41. The model of the chip IC5 is STM811SW16F. Port 3 of the chip IC41 is also used to receive a reset signal RESET, which is used to reset the digital analog conversion module.

[0069] More specifically, the second 3.3V power supply filter module includes an inductor L0, a capacitor C20, a capacitor C22 and a capacitor C23. Among them, one end of the inductor L0 is connected to the 3.3V power supply, and the other end is electrically connected to the port 44 (DVCC) and the port 50 (DVCC) of the chip IC41. One end of the capacitor R20 is grounded, and the other end is connected between the inductor L0 and the chip IC41. One end of the capacitor C22 and the capacitor C23 are grounded, and the other end is connected between the inductor L0 and the chip IC41, which is used to filter the 3.3V power supply to ensure the stability of the power supply.

[0070] More specifically, the -4.5V power filter module includes capacitor C24 and capacitor C25. Among them, port 12 (VSS) and port 29 (VSS) of chip IC41 are connected to -4.5V (N4V5). One end of capacitor C24 and capacitor C25 is grounded, and the other end is electrically connected to port 12 (VSS) and port 29 (VSS) of chip IC41, which is used to filter the -4.5V power supply and ensure the stability of the power supply.

[0071] More specifically, the 11.5V power supply filter module includes capacitors C17 and C18. Port 11 (VDD) and port 28 (VDD) of chip IC41 are connected to 11.5V (P11V5). Capacitors C17 and C18 are connected between chip IC41 and the 11.5V power supply to filter the 11.5V power supply and ensure the stability of the power supply.

[0072] More specifically, the 5V power filter module includes chip IC6, capacitor C10, capacitor C11, capacitor C12, capacitor C13 and capacitor C14. Among them, port 2 (VIN) of chip IC6 is connected to 5V power supply, port 4 (GND) is grounded, and port 6 (VOUT) is electrically connected to port 13 (VREF1) of chip IC41, which is used to convert the 5V power module into 2.5V power supply for chip IC41. One end of capacitor C10 and capacitor C11 is grounded, and the other end is electrically connected to port 2 (VIN) of chip IC6, which is used to filter the 5V power supply.

[0073] One end of capacitor C12, capacitor C13, and capacitor C14 is grounded, and the other end is connected between chip IC6 and port 13 (VREF1) of chip IC41, for filtering the power input to chip IC41. Port 31 (VREF0) of IC41 is also electrically connected to port 6 of chip IC6. The model of chip IC6 is ADR421ARMZ.

[0074] Preferably, port 4 , port 19 , port 38 , port 52 , port 43 , and port 51 of chip IC41 are all grounded.

[0075] Preferably, if Figure 1 As shown, the driving circuit board of the present invention further includes a storage module for storing device parameters of the driving circuit board, etc., so as to be used for identifying the device. Since the main control board of the ion trap quantum computer may be connected to other circuit boards during actual application, in order to facilitate the identification of the driving circuit board, this embodiment sets a storage module on the driving circuit board. The main control board obtains the device parameters through the storage module for identifying the driving circuit board.

[0076] Preferably, the storage module is an EEPROM memory. The storage module is connected to the main control board via I2C protocol communication.

[0077] Preferably, the input end of the output channel module in the present invention is electrically connected to the output end of the digital analog conversion module, and the output end is electrically connected to the piezoelectric ceramic, and is used to filter and amplify the converted analog signal and then send the signal to the piezoelectric ceramic to control the movement of the piezoelectric ceramic. Since the ion trap quantum computer controls a plurality of ions, there are a plurality of output channel modules in the present invention, and each output channel module drives the movement of a piezoelectric ceramic to control the position of a laser beam. Preferably, as Figure 1 As shown, there are 8 output channel modules in this embodiment. The input end of each output channel module is electrically connected to the output end of the digital analog conversion module, and the output end is electrically connected to the corresponding piezoelectric ceramic, which is used to control the movement of the corresponding piezoelectric ceramic, thereby realizing the position control of the laser beam.

[0078] The output channel module in this embodiment is only one preferred embodiment, and its specific number can be set according to the actual number of ions controlled or demand, etc.

[0079] Preferably, since the digital-to-analog conversion module may generate some high-frequency noise when converting the signal, the output channel module in this embodiment is also used to filter, boost, and process the analog signal sent by the digital-to-analog conversion module, and then send it to the piezoelectric ceramic to eliminate the high-frequency noise generated during the operation of the digital-to-analog conversion module. The output channel module in the present invention first filters the analog signal sent by the digital-to-analog conversion module through a low-pass filter, and then amplifies the filtered analog signal through an amplifier before transmitting it to the corresponding piezoelectric ceramic.

[0080] Preferably, the output channel module converts the voltage signal input by the digital-to-analog conversion module into a high voltage signal by using a high voltage operational amplifier element, and outputs it to the piezoelectric ceramic to control the movement of the piezoelectric ceramic, thereby achieving position control of the laser beam.

[0081] Specifically, Figure 3 As shown, the present invention provides a circuit diagram of one of the output channel modules, including an operational amplifier IC1, an operational amplifier IC2, an RC filter circuit composed of a resistor R1, a resistor R2, and a capacitor C1, a capacitor C20, a capacitor C21, a diode array, a resistor R3, a resistor R4, a resistor R5, a capacitor C3, and a filter circuit composed of a resistor R6, a resistor R10, and a resistor R11. Among them, the model of the operational amplifier IC2 is AD8675ARMZ. The model of the operational amplifier IC1 is ADHV4702-1BCPZ.

[0082] Among them, the inverting input terminal (-) of the operational amplifier IC2 is electrically connected to the output terminal of the operational amplifier IC2, and the non-inverting input terminal (+) is electrically connected to the corresponding output terminal of the digital-to-analog conversion module through an RC filter circuit composed of a resistor R1, a resistor R2, and a capacitor C1, for filtering the analog signal. The positive power supply terminal (V+) of the operational amplifier IC2 is connected to an 11.5V power supply (P11V5); one end of the capacitor C21 is grounded, and the other end is connected to the positive power supply terminal of the operational amplifier IC2, for filtering the 11.5V power supply. The negative power supply (V-) of the operational amplifier IC2 is connected to a -4.5V power supply (N4V5); one end of the capacitor C20 is grounded, and the other end is connected to the negative power supply terminal of the operational amplifier IC2.

[0083] The non-inverting input terminal (IN+) of the operational amplifier IC1 is electrically connected to the output terminal of the operational amplifier IC2, and the output terminal is electrically connected to the corresponding piezoelectric ceramic through a filter circuit composed of a resistor R6, a resistor R10, and a resistor R11, so as to amplify the filtered analog signal and output it to the corresponding piezoelectric ceramic to drive the movement of the piezoelectric ceramic.

[0084] The output terminal (OUT) of the operational amplifier IC1 is also grounded through resistors R3, R4 and R5, and the inverting input terminal (IN-) is connected between the resistors R3 and R4.

[0085] The diode array includes a diode D2B, a diode D1A, a diode D1B, and a diode D2A. The model of the four diodes is BAV199. Among them, the cathode of the diode D2A is connected between the operational amplifier IC1 and the operational amplifier IC2, and the anode is electrically connected to the inverting input terminal of the operational amplifier IC1 through the diode D2B. The cathode of the diode D1B is connected between the operational amplifier IC1 and the operational amplifier IC2, and the anode is electrically connected to the inverting input terminal of the operational amplifier IC1 through the diode D1A.

[0086] Port 7 (VCC) of chip IC1 is connected to a 200V power supply (P200V0); one end of capacitor C10 is grounded, and the other end is electrically connected to port 7 of chip IC1. Port 1 (Reserved), port 3 (Reserved), port 10 (DGND), and port 13 (EP) of chip IC1 are grounded. Port 4 (VEF) of chip IC1 is connected to a -4.5V power supply (N4V5).

[0087] Port 9 (RADJ) of chip IC1 is electrically connected to port 2 of switch SW1. Port 3 of switch SW1 is grounded. Port 1 of switch SW1 is grounded through resistor R8. Port 2 of switch SW1 is also grounded through resistor R7. The switching of switch SW1 can realize the switching of the signal outputted by the output terminal of chip IC1.

[0088] Preferably, the circuit diagrams of the multiple output channel modules in the present invention are implemented in the same way.

[0089] Preferably, a second-order low-pass filter module is further provided between the output channel module and the piezoelectric ceramic in the present invention. The second-order low-pass filter module is used to perform feedback control on the output channel module. That is, through the second-order low-pass filter, it is possible to use a low-noise, low-power signal to operate the amplifier of the output channel module, without the need to use a large voltage for control, thereby reducing system energy consumption. At the same time, the analog signal processed by the output channel module can be further filtered to ensure the stability of the signal, so that it outputs a high-quality DC signal, and by moving the piezoelectric ceramic, the position of the laser beam is accurately guaranteed, thereby achieving accurate emission of the laser beam.

[0090] Preferably, the second-order low-pass filter module includes a switch module and a second-order low-pass filter, wherein the second-order low-pass filter is connected between the output channel module and the piezoelectric ceramic through the switch module. Figure 4 As shown, the second-order low-pass filter module includes a switch module composed of a switch SW1A, a switch SW1B, a resistor R10, and a resistor R11, and a second-order low-pass filter composed of an operational amplifier IC1A, a resistor R12, a capacitor C1, and a capacitor C2.

[0091] Among them, port 2 of switch SW1A is electrically connected to the output end of the corresponding output channel module, port 3 is electrically connected to port 6 of switch SW1B, port 1 of switch SW1A is electrically connected to port 4 of switch SW1B through resistors R10 and R11, and port 5 of switch SW1B is electrically connected to piezoelectric ceramics. The output signal of chip IC1 of the output channel module is controlled by two switches, so that the signal output by the output channel module is output to the piezoelectric ceramics.

[0092] Preferably, the inverting input terminal (-) of the operational amplifier IC1A is also connected between the resistor R10 and the resistor R11 through the capacitor C1, the non-inverting input terminal (+) is grounded, the positive power supply terminal (V+) is connected to the +4.5V power supply, the negative power supply terminal (V-) is connected to the -4.5V power supply, and the output terminal is connected between the resistor R10 and the resistor R11 through the capacitor C2. One end of the resistor R12 is connected between the capacitor C11 and the inverting input terminal of the operational amplifier IC1A, and the other end is connected between the capacitor C2 and the output terminal of the operational amplifier IC1A. The second-order low-pass filter isolates the high voltage output by the operational amplifier IC1A by using capacitors C1 and C2, so that the fluctuation of the DC voltage will not affect the stability of the voltage output by the output channel module. At the same time, since the voltage signal output by the output channel module needs to be adjusted, the filtering frequency is allowed to be 10HZ, therefore, the signal noise above 10HZ can be filtered out by the second-order low-pass filter to ensure the accuracy of the output voltage.

[0093] Preferably, in actual use, the main control board of the ion trap quantum computer receives the instruction for controlling the position of the laser beam sent by the host computer and converts the instruction into a digital signal, and sends the digital signal to the digital-to-analog conversion module of the driving circuit board through the SPI protocol; the digital-to-analog conversion module of the driving circuit board converts the digital signal into an analog signal and outputs a high-quality DC signal through each output channel module and a second-order low-pass filter, thereby driving the movement of the corresponding piezoelectric ceramic, that is, controlling the position of the laser beam, thereby achieving precise control of the laser beam.

[0094] Preferably, in order to ensure the normal operation of each output channel module, each output channel module is further provided with a monitoring module for monitoring the temperature of the corresponding output channel module.

[0095] More preferably, the monitoring module is also electrically connected to an LED light, and is used to control the LED light to display a corresponding color when the temperature of the corresponding output channel module exceeds a preset value, so as to remind the user that the temperature of the corresponding output channel module is too high. At this time, the operator can know from the displayed color of the LED light that the temperature in the corresponding output channel module is too high, and can take closing measures for the channel to avoid the problem of equipment damage caused by excessive operating temperature of the equipment.

[0096] like Figure 5 As shown, the present invention provides a circuit diagram of a monitoring module, including an operational amplifier IC1D, a filter circuit composed of a resistor R13 and a resistor R14, a resistor R15 and a resistor R16. The LED lamp is a light emitting diode LD1D. The model of the operational amplifier IC1D is AD8544ARZ.

[0097] Among them, the inverting input terminal (-) of the operational amplifier IC1D is electrically connected to the corresponding output channel module, and is connected to the signal LED1. The LED1 signal in the figure is the TMP signal in the output channel module, that is, the inverting input terminal of the operational amplifier IC1D is electrically connected to the port 8 of the chip IC1. At the same time, the capacitor R9 is connected between the operational amplifier IC1D and the chip IC1 to filter the TMP signal to ensure the stability of the signal.

[0098] The non-inverting input terminal (+) of the operational amplifier IC1D is connected to a 3.3V power supply through a resistor R13.

[0099] One end of the resistor R14 is grounded, and the other end is connected between the resistor R13 and the operational amplifier IC1D.

[0100] The negative power supply terminal of the operational amplifier IC1D is grounded, the positive power supply terminal is connected to a 3.3V power supply, and the non-inverting input terminal is also electrically connected to the output terminal of the operational amplifier IC1D through a resistor R15.

[0101] The output terminal of the operational amplifier IC1D is electrically connected to the light emitting diode LD1D via the resistor R16 to control the working state of the light emitting diode LD1D.

[0102] The operational amplifier obtains the TMP signal of the output channel module for amplification. Since the voltage signal of the operational amplifier IC1D is related to the temperature, when the temperature reaches a certain set value, the TMP signal is amplified to turn on the diode monitoring light, prompting the user that the temperature is too high and the output channel stops working, so as to protect the circuit.

[0103] Preferably, the present invention further comprises a power module, wherein the power module is electrically connected to the main control board of the ion trap quantum computer, obtains power through the main control board, and converts it into power of various voltages for use by other modules on the driving circuit board.

[0104] Since the voltages of the working power supplies of different modules are different, the present invention realizes the conversion of power supplies of various voltages through the power supply module, which can ensure the normal operation of each module on the driving circuit board.

[0105] Preferably, the power module in the present invention converts the 12V power obtained from the main control board into power of various values ​​for use by various modules on the driving circuit board. At present, the voltages required by the driving circuit board in this embodiment include: 3.3V, +4.5V, -4.5V, 11.5V, 200V. The various voltages are specifically represented in the circuit diagram as follows: P12V0, P3V3, N4V5, P4V5, P11V5, P200V0.

[0106] According to the different voltages of the power conversion, the power module can be divided into a first power module, a second power module and a third power module.

[0107] The first power module is used to convert 12V power into 3.3V power, 5V power, -4.5V power, +4.5V power. Specifically, the conversion from 12V to 3.3V is achieved through a DC-DC conversion chip, such as Figure 6 The chip IC7 shown in the figure; 12V to -4.5V, 12V to +4.5V, both first use a symmetrical voltage conversion chip IC9 to convert the 12V power supply to -5V, +5V, and then use a low-noise, low-power regulator to convert the -5V voltage to -4.5V voltage, and convert the +5V voltage to +4.5V voltage.

[0108] Specifically, Figure 6 As shown, the first power supply module includes a first LC filter circuit, a first filter circuit, a chip IC7, a second LC filter circuit, a resistor R19, and a resistor R20. Among them, the model of the chip IC7 is TPS62175DQC.

[0109] Port 2 (VIN) and port 3 (EN) of chip IC7 are connected to 12V power supply through the second filter circuit and the first LC filter circuit, and port 9 (SW) outputs 3.3V power supply through the second LC filter circuit.

[0110] The first filter circuit includes a capacitor C26 and a capacitor C27 connected in parallel. One end of the capacitor C26 and the capacitor C27 is grounded, and the other end is connected between the first LC filter circuit and the chip IC7.

[0111] The first LC filter circuit includes a capacitor C52, a capacitor C53 and an inductor L4, wherein one end of the capacitor C52 and the capacitor C53 is grounded, and the other end is electrically connected to the input end of the chip IC7 through the inductor L4.

[0112] The second LC filter circuit includes an inductor L1, a capacitor C28 and a capacitor C29. One end of the capacitor C28 and the capacitor C29 is grounded, and the other end is electrically connected to the output end of the chip IC1 through the inductor L1. One end of the resistor R19 is electrically connected to the port 9 of the chip IC7 through the inductor L1, and the other end is grounded through the resistor R20.

[0113] That is, the 12V power supply can be converted into a 3.3V power supply through the chip IC7.

[0114] Preferably, the first power supply module further includes a second filter circuit, a chip IC9, a third LC filter circuit, a fourth LC filter circuit, a voltage regulator IC10, a voltage regulator IC11, a third filter circuit, a fourth filter circuit, a diode D3, a diode D1, a resistor R26, a resistor R25, a resistor R23, and a resistor R24. Among them, the model of the chip IC9 is MEA1D1205SC, and the models of the voltage regulator IC10 and the voltage regulator IC11 are both LT1963ES5-BYP.

[0115] Among them, the positive input terminal (VIN+) of the chip IC9 is connected to the 12V power supply through the second filter circuit and the first LC filter circuit, the negative input terminal (VIN-) is grounded, the positive output terminal (VOUT+) is electrically connected to the input terminal of the regulator IC10 through the third LC filter circuit, the negative output terminal (VOUT-) is electrically connected to the input terminal of the regulator IC11 through the fourth LC filter circuit, and port 5 (OV) is grounded.

[0116] Chip IC9 is used to convert the 12V power supply into +5V power supply and -5V power supply respectively, so as to subsequently process the +5V power supply and -5V power supply to generate +4.5V power supply and -4.5V power supply.

[0117] The second filter circuit includes a capacitor C35 and a capacitor C36, wherein one end of the capacitor C35 and the capacitor C36 is grounded, and the other end is connected between the first LC filter circuit and the positive input terminal (VIN+) of the chip IC9.

[0118] The second LC filter circuit includes an inductor L3, a capacitor C42 and a capacitor C43. One end of the capacitor C42 and the capacitor C43 is grounded, and the other end is connected between the inductor L3 and the regulator IC10; the inductor L3 is also electrically connected to the positive output terminal (VOUT+) of the chip IC9.

[0119] The third LC filter circuit includes an inductor L2, a capacitor C37 and a capacitor C38; one end of the capacitor C37 and the capacitor C43 is grounded, and the other end is connected between the inductor L2 and the regulator IC11; the inductor L2 is also electrically connected to the negative output terminal (VOUT-) of the chip IC9.

[0120] The output terminal (OUT) of the voltage regulator IC10 outputs +4.5V through the third filter circuit. That is, the voltage regulator IC10 is used to convert the +5V power supply into a +4.5V power supply.

[0121] The output terminal (OUT) of the voltage regulator IC11 outputs -4.5V through the fourth filter circuit. That is, the voltage regulator IC11 is used to convert the -5V power supply into the -4.5V power supply.

[0122] Preferably, the third filtering circuit includes a capacitor C45 and a capacitor C46 , one end of the capacitor C45 and the capacitor C46 is grounded, and the other end is electrically connected to the output end (OUT) of the regulator IC10 .

[0123] The fourth filter circuit includes a capacitor C40 and a capacitor C41 . One end of the capacitor C40 and the capacitor C41 is grounded, and the other end is electrically connected to the output end (OUT) of the regulator IC11 .

[0124] One end of the diode D3 is grounded, and the other end is electrically connected to the output end (OUT) of the regulator IC10 .

[0125] One end of the diode D1 is grounded, and the other end is electrically connected to the output end (OUT) of the regulator IC11 .

[0126] Preferably, if Figure 7 As shown, the second power supply module is used to convert the 12V power supply into the 11.5V power supply, which is specifically achieved by using a voltage stabilizer for voltage transformation, adding an LC low-pass filter circuit at the front end of the voltage stabilizer, and adding an LC low-pass filter circuit at the back end of the voltage stabilizer to stabilize the output voltage, and also adding a diode at the output end of the voltage stabilizer to prevent current reverse flow. Specifically, preferably, as Figure 7 As shown, the second power supply module includes a fourth LC filter circuit, a voltage regulator IC8, a fifth filter circuit, a diode D2, a resistor R21 and a resistor R22.

[0127] The model of the voltage regulator IC8 is LT1761ES5-BYP.

[0128] The input end (port 1, IN) of the voltage regulator IC8 is connected to the 12V power supply through the fourth LC wave circuit, and the output end (port 5, OUT) outputs the 11.5V power supply through the fifth filter circuit. That is, the voltage regulator IC8 is used to convert the 12V power supply into the 11.5V power supply.

[0129] One end of the resistor R21 is electrically connected to the output end of the regulator IC8 , and the other end of the resistor R21 is grounded through the resistor R22 .

[0130] One end of the diode D2 is grounded, and the other end is electrically connected to the output end of the voltage regulator IC8 to prevent the current of the voltage regulator from flowing backwards. In order to prevent the voltage regulator from being damaged by reverse current when the power is turned on or off, the present embodiment adds a diode D2 at the end of the circuit to prevent reverse current. The model of the diode D2 is SK26A.

[0131] The fourth LC filter circuit includes a capacitor C30, a capacitor C31 and an inductor L7. One end of the capacitor C3 and the capacitor C31 is grounded, and the other end is connected between the inductor L7 and the input end of the voltage regulator IC8.

[0132] The fifth filter circuit includes capacitor C33 and capacitor C34. One end of capacitor C33 and capacitor C34 is grounded, and the other end is electrically connected to the output end of the voltage regulator IC8. Port 3 (BYP) of the voltage regulator IC8 is also electrically connected to the output end of the voltage regulator IC8 through capacitor C32, and the ground end (port 2, GND) is grounded GND.

[0133] Preferably, if Figure 8 As shown, the third power supply module is used to convert 12V power supply into 200V power supply. It uses an LC low-pass filter circuit to prevent pulse signals or noise from other modules from entering the circuit, and the filter frequency must be lower than the switching frequency of 200kHz of the voltage converter. The input voltage of some piezoelectric devices may be less than 200V. If the 200V output is used directly, the device may be damaged. Therefore, a switching switch (SW0) is set internally, through which the output voltage can be changed to three gears: 100V, 150V, and 200V. R12-150B is a high output voltage isolated DC / DC converter that realizes voltage conversion from 12V to 200V. Since it has a switching frequency of 200kHz inside, a low-pass LC filter circuit needs to be added to the output circuit. Specifically, preferably, as Figure 8 As shown, the third power supply module includes a fifth LC filter circuit, a voltage regulator IC12, a sixth LC filter circuit, a switch SW0, a capacitor C49, a resistor R27, a resistor R28, and a resistor R29. Among them, the input end (port 22, port 23, +Vin) of the voltage regulator IC12 is connected to the 12V power supply through the fifth LC filter circuit, and the control end (port 8, port 17, VREF, port 9, port 16, VADJ) is electrically connected to the switch SW0. The model of the voltage regulator IC12 is R12-150B.

[0134] The second pin (port 2) of the switch SW0 is grounded via a resistor R27, the third pin (port 3) is grounded via a resistor R28, and the first pin (port 1) is grounded via a resistor R29.

[0135] Through the control of switch SW0, the output power of the output end (port 12, port 13, +Vout) of the voltage regulator IC12 is switched between 100V power, 150V power and 200V power. Specifically, when the second pin of switch SW0 contacts the third pin, the output end of chip IC12 outputs 150V power; when the second pin of switch SW0 contacts the first pin, the output end of chip IC12 outputs 100V power; when the second pin of switch SW0 contacts the OFF pin (the port between port 3 and port 1 in the figure), the output end of chip IC12 outputs 200V power.

[0136] Preferably, the fifth LC filter circuit includes an inductor L6, a capacitor C47, and a capacitor C48. One end of the capacitor C47 is grounded, and the other end is electrically connected to the input end of the voltage regulator IC12 through the inductor L6. One end of the capacitor C48 is grounded, and the other end is connected between the inductor L6 and the input end of the voltage regulator IC12.

[0137] The sixth LC filter circuit includes a capacitor C49, a capacitor C50, an inductor L5, and a capacitor C51. One end of the capacitor C49 is grounded, and the other end is electrically connected to the output end of the voltage regulator IC12.

[0138] One end of the capacitor C50 and the capacitor C51 is grounded, and the other end is electrically connected to the output end of the regulator IC12 through the inductor L5.

[0139] The present invention provides a new driving circuit board, combines it with the control of piezoelectric ceramics, realizes the control of the movement of piezoelectric ceramics, and then realizes the control of the position of the laser beam, realizes the precise control of the laser beam, and can also simultaneously control the movement of multiple piezoelectric ceramics, thereby solving the problem that the laser beam in the traditional ion trap quantum computer realized by AOM is limited by the number of channels and cannot realize large-scale ion control. At the same time, the driving circuit board in the present invention communicates with the host computer through the main control board of the ion trap quantum computer, and the control of the driving circuit board is realized through the host computer, which simplifies the operation mode of the ion trap quantum computer and facilitates user operation.

[0140] Embodiment 2

[0141] Preferably, based on the above embodiments, the present invention also provides another embodiment, an ion trap quantum computer, comprising a main control board, piezoelectric ceramics, a laser emitter and the laser beam alignment drive circuit board provided in the first embodiment.

[0142] Among them, the main control board is electrically connected to the host computer and the laser beam alignment driver circuit board respectively, and is used for receiving the control instructions sent by the host computer, and generating corresponding control signals based on its control instructions and sending them to the laser beam alignment driver circuit board, and then driving the movement of the corresponding piezoelectric ceramics through the laser beam alignment driver circuit board, and then driving the movement of the laser emitter through the piezoelectric ceramics to achieve precise control of the laser beam.

[0143] The laser beam alignment driving circuit board includes a plurality of output channels, each of which controls a corresponding piezoelectric ceramic. The laser beam alignment driving circuit board generates a corresponding driving signal to drive the movement of the piezoelectric ceramic, thereby realizing the reflection control of a laser beam.

[0144] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A laser beam alignment driving circuit board, applied to an ion trap quantum computer; characterized in that: The laser beam alignment driving circuit board includes a digital-to-analog conversion module and an output channel module; wherein the input end of the digital-to-analog conversion module is electrically connected to the main control board of the ion trap quantum computer, and is used to receive the digital signal sent by the main control board of the ion trap quantum computer and convert the digital signal into an analog signal; There are multiple output channel modules, and the input end of each output channel module is electrically connected to the output end of the digital analog conversion module, and the output end is electrically connected to the corresponding piezoelectric ceramic of the ion trap quantum computer, and is used to filter and amplify the analog signal and then send it to the corresponding piezoelectric ceramic, thereby driving and controlling the movement of the corresponding piezoelectric ceramic to achieve control of the position of the laser beam, wherein a second-order low-pass filter module is provided between each output channel module and the corresponding piezoelectric ceramic, and the second-order low-pass filter module is used to filter the analog signal output by the corresponding output channel module and then output it to the piezoelectric ceramic; the second-order low-pass filter module includes a switch module and a second-order low-pass filter; wherein one end of the switch module is electrically connected to the output end of the corresponding output channel module, and the other end is electrically connected to the corresponding piezoelectric ceramic; the switch module is also electrically connected to the second-order low-pass filter; the switch module includes a switch SW1A, a switch SW1B, a resistor R10, and a resistor R11; the second-order low-pass filter includes an operational amplifier IC1A, a resistor R12, a capacitor C1, and a capacitor C2; The input pin of the switch SW1A is electrically connected to the output end of the corresponding output channel module, the first output pin is electrically connected to the first output pin of the switch SW1B, the second output pin is electrically connected to the second output pin of the switch SW1B through the resistors R10 and R11, and the input pin of the switch SW1B is electrically connected to the piezoelectric ceramic; The inverting input terminal of the operational amplifier IC1A is connected between the resistor R10 and the resistor R11 through the capacitor C1, the non-inverting input terminal is grounded, the positive power supply terminal is connected to the +4.5V power supply, the negative power supply terminal is connected to the -4.5V power supply, and the output terminal is connected between the resistor R10 and the resistor R11 through the capacitor C2; one end of the resistor R12 is connected between the capacitor C11 and the inverting input terminal of the operational amplifier IC1A, and the other end is connected between the capacitor C2 and the output terminal of the operational amplifier IC1A.

2. The laser beam alignment driving circuit board according to claim 1, characterized in that: The output channel module includes a low-pass filter and an amplifier; the low-pass filter is used to filter the analog signal; the amplifier is used to amplify the filtered analog signal; The output channel module includes an operational amplifier IC1, an operational amplifier IC2, an RC filter circuit composed of a resistor R1, a resistor R2, and a capacitor C1, a capacitor C20, a capacitor C21, a diode array, a resistor R3, a resistor R4, a resistor R5, a capacitor C3, and a filter circuit composed of a resistor R6, a resistor R10, and a resistor R11; wherein the inverting input terminal of the operational amplifier IC2 is electrically connected to the output terminal of the operational amplifier IC2, and the non-inverting input terminal is electrically connected to the corresponding output terminal of the digital-to-analog conversion module through the RC filter circuit composed of the resistor R1, the resistor R2, and the capacitor C1, for filtering the analog signal; The non-inverting input terminal of the operational amplifier IC1 is electrically connected to the output terminal of the operational amplifier IC2, and the output terminal is electrically connected to the corresponding piezoelectric ceramic through a filter circuit composed of a resistor R6, a resistor R10, and a resistor R11, for amplifying the filtered analog signal and outputting it to the corresponding piezoelectric ceramic to drive the movement of the piezoelectric ceramic; The output end of the operational amplifier IC1 is also connected to ground through resistors R3, R4 and R5, and the inverting input end is connected between resistors R3 and R4; The diode array includes a diode D2B, a diode D1A, a diode D1B, and a diode D2A; wherein the cathode of the diode D2A is connected between the operational amplifier IC1 and the operational amplifier IC2, and the anode is electrically connected to the inverting input terminal of the operational amplifier IC1 through the diode D2B; the cathode of the diode D1B is connected between the operational amplifier IC1 and the operational amplifier IC2, and the anode is electrically connected to the inverting input terminal of the operational amplifier IC1 through the diode D1A.

3. The laser beam alignment driving circuit board according to claim 1, characterized in that: Each output channel module is also provided with a monitoring module and an LED light; one end of the monitoring module is electrically connected to the corresponding output channel module, and the other end is electrically connected to the LED light, for monitoring the temperature of the corresponding output channel module and controlling the LED light to display a corresponding color to display the temperature of the corresponding output channel module; The monitoring module includes an operational amplifier IC1D, a filter circuit composed of a resistor R13 and a resistor R14, a resistor R15 and a resistor R16; the LED lamp is a light emitting diode LD1D; Among them, the inverting input terminal of the operational amplifier IC1D is electrically connected to the corresponding output channel module, and the non-inverting input terminal is connected to the 3.3V power supply through the resistor R13; one end of the resistor R14 is grounded, and the other end is connected between the resistor R13 and the operational amplifier IC1D; the negative power supply terminal of the operational amplifier IC1D is grounded, the positive power supply terminal is connected to the 3.3V power supply, and the non-inverting input terminal is also electrically connected to the output terminal of the operational amplifier IC1D through the resistor R15; The output terminal of the operational amplifier IC1D is electrically connected to the light emitting diode LD1D via the resistor R16 to control the working state of the light emitting diode LD1D.

4. The laser beam alignment driving circuit board according to claim 1, characterized in that: The digital-to-analog conversion module is connected to the main control board of the ion trap quantum computer through an SPI interface communication.

5. The laser beam alignment driving circuit board according to claim 4, characterized in that: There are 8 output channel modules; the digital-to-analog conversion module includes a chip IC41 with model number AD5362BCPZ and a power filter module; wherein the chip IC41 is provided with 8 input terminals, which communicate with the ion trap quantum computer through the SPI protocol respectively; the chip IC41 is provided with 8 output terminals, which are electrically connected to the input terminals of the 8 output channel modules respectively; the multiple power terminals of the chip IC41 are also connected to the corresponding power supply through the corresponding power filter module, and the corresponding power supply includes a 3.3V power supply, a 5V power supply, a 11.5V power supply and a -4.5V power supply.

6. The laser beam alignment driving circuit board according to claim 1, characterized in that: The laser beam alignment driving circuit board also includes a power supply module, which is electrically connected to the main control board, the digital analog conversion module, and the output channel module of the ion trap quantum computer, and is used to obtain power supply from the main control board of the ion trap quantum computer and convert the power supply into a corresponding internal working power supply, so as to provide working power for the digital analog conversion module and the output channel module.

7. The laser beam alignment driving circuit board according to claim 6, characterized in that: The power module includes a first power module, a second power module, and a third power module; wherein the first power module includes a 12V to 3.3V power module, a 12V to -4.5V power module, and a 12V to +4.5V power module, which are respectively used to convert the 12V power obtained from the main control board of the ion trap quantum computer into 3.3V power, -4.5V power, and +4.5 power; the second power module is used to convert the 12V power into 11.5V power; the third power module is used to convert the 12V power into a 200V power module; Wherein, the first power supply module includes a first LC filter circuit, a first filter circuit, a chip IC7, a second LC filter circuit, a resistor R19, and a resistor R20; The power input end of the chip IC7 is connected to the 12V power supply through the second filter circuit and the first LC filter circuit, and the output end outputs the 3.3V power supply through the second LC filter circuit; The first filter circuit includes a capacitor C26 and a capacitor C27 connected in parallel; one end of the capacitor C26 and the capacitor C27 is grounded, and the other end is connected between the first LC filter circuit and the chip IC7; The first LC filter circuit includes a capacitor C52, a capacitor C53 and an inductor L4; one end of the capacitor C52 and the capacitor C53 is grounded, and the other end is electrically connected to the input end of the chip IC7 through the inductor L4; The second LC filter circuit includes an inductor L1, a capacitor C28 and a capacitor C29; one end of the capacitor C28 and the capacitor C29 is grounded, and the other end is electrically connected to the output end of the chip IC1 through the inductor L1; One end of the resistor R19 is electrically connected to the output end of the chip IC7 through the inductor L1, and the other end is grounded through the resistor R20; The first power supply module also includes a second filter circuit, a chip IC9, a third LC filter circuit, a fourth LC filter circuit, a voltage regulator IC10, a voltage regulator IC11, a third filter circuit, a fourth filter circuit, a voltage regulator D3, a voltage regulator D1, a resistor R26, a resistor R25, a resistor R23, and a resistor R24; wherein the positive input terminal of the chip IC9 is connected to the 12V power supply through the second filter circuit and the first LC filter circuit, the negative input terminal is grounded, the positive output terminal is electrically connected to the input terminal of the voltage regulator IC10 through the third LC filter circuit, and the negative output terminal is electrically connected to the input terminal of the voltage regulator IC11 through the fourth LC filter circuit; wherein the chip IC9 is used to convert the 12V power supply into a +5V power supply and a -5V power supply respectively; The second filter circuit includes a capacitor C35 and a capacitor C36; one end of the capacitor C35 and the capacitor C36 is grounded, and the other end is connected between the first LC filter circuit and the chip IC9; The second LC filter circuit includes an inductor L3, a capacitor C42 and a capacitor C43; one end of the capacitor C42 and the capacitor C43 is grounded, and the other end is connected between the inductor L3 and the regulator IC10; the inductor L3 is also electrically connected to the positive output terminal of the chip IC9; The third LC filter circuit includes an inductor L2, a capacitor C37 and a capacitor C38; one end of the capacitor C37 and the capacitor C43 is grounded, and the other end is connected between the inductor L2 and the regulator IC11; the inductor L2 is also electrically connected to the negative output terminal of the chip IC9; The output end of the voltage regulator IC10 outputs +4.5V through the third filter circuit; the output end of the voltage regulator IC11 outputs -4.5V through the fourth filter circuit; The third filter circuit includes a capacitor C45 and a capacitor C46; one end of the capacitor C45 and the capacitor C46 is grounded, and the other end is electrically connected to the output end of the voltage regulator IC10; the fourth filter circuit includes a capacitor C40 and a capacitor C41; one end of the capacitor C40 and the capacitor C41 is grounded, and the other end is electrically connected to the output end of the voltage regulator IC11; One end of the diode D3 is grounded, and the other end is electrically connected to the output end of the voltage regulator IC10; one end of the diode D1 is grounded, and the other end is electrically connected to the output end of the voltage regulator IC11; The second power supply module includes a fourth LC filter circuit, a voltage regulator IC8, a fifth filter circuit, a diode D2, a resistor R21 and a resistor R22; wherein the input end of the voltage regulator IC8 is connected to a 12V power supply through the fourth LC wave circuit, and the output end outputs a 11.5V power supply through the fifth filter circuit; One end of the resistor R21 is electrically connected to the output end of the voltage regulator IC8, and the other end is grounded through the resistor R22; one end of the diode D2 is grounded, and the other end is electrically connected to the output end of the voltage regulator IC8; The fourth LC filter circuit includes a capacitor C30, a capacitor C31 and an inductor L7; one end of the capacitor C3 and the capacitor C31 is grounded, and the other end is connected between the inductor L7 and the input end of the voltage regulator IC8; the fifth filter circuit includes a capacitor C33 and a capacitor C34; one end of the capacitor C33 and the capacitor C34 is grounded, and the other end is electrically connected to the output end of the voltage regulator IC8; The third power supply module includes a fifth LC filter circuit, a voltage regulator IC12, a sixth LC filter circuit, a switch SW0, a capacitor C49, a resistor R27, a resistor R28, and a resistor R29; wherein the input end of the voltage regulator IC12 is connected to a 12V power supply through the fifth LC filter circuit, and the control end is electrically connected to the switch SW0; the input pin of the switch SW0 is grounded through the resistor R27, the second output pin is grounded through the resistor R28, and the first output pin is grounded through the resistor R29; through the control of the switch SW0, the output power of the output end of the voltage regulator IC12 is switched between a 100V power supply, a 150V power supply, and a 200V power supply; The fifth LC filter circuit includes an inductor L6, a capacitor C47, and a capacitor C48; one end of the capacitor C47 is grounded, and the other end is electrically connected to the regulator IC12 through the inductor L6; one end of the capacitor C48 is grounded, and the other end is connected between the inductor L6 and the regulator IC12; The sixth LC filter circuit includes capacitor C49, capacitor C50, inductor L5 and capacitor C51; one end of capacitor C49 is grounded, and the other end is electrically connected to the regulator IC12; one end of capacitor C50 and capacitor C51 is grounded, and the other end is electrically connected to the regulator IC12 through the inductor L5.

8. The laser beam alignment driving circuit board according to claim 1, characterized in that: The laser beam alignment driving circuit board also includes a storage module, wherein the storage module is electrically connected to the main control board of the ion trap quantum computer and is used to store configuration parameters of the laser beam alignment driving circuit board so that the main control board of the ion trap quantum computer can identify the laser beam alignment driving circuit board according to the configuration parameters.

9. An ion trap quantum computer, characterized in that: It comprises a main control board, a piezoelectric ceramic, a laser beam emitter and a laser beam alignment driving circuit board as claimed in any one of claims 1 to 8; the piezoelectric ceramic is used to drive the position of the laser beam emitter to move; the piezoelectric ceramic and the laser beam emitter are both multiple, and the number is the same as the number of output channel modules of the laser beam alignment driving circuit board; The main control board is electrically connected to the laser beam alignment driving circuit board, and is used to send a control signal to the laser beam alignment driving circuit board, so that the laser beam alignment driving circuit board generates multiple driving signals according to the control signal, and outputs each driving signal to the corresponding piezoelectric ceramic, thereby driving the movement of the corresponding piezoelectric ceramic to realize the control of the laser emission position of the laser beam emitter.

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