Electron tube power supply control device and electronic equipment

Abstract

The invention provides an electronic tube power supply control device and electronic equipment. The electronic tube power supply control device comprises a control module, a transmission module and a power supply module, the control module is used for determining an electric signal value of a corresponding electrode of the controlled electron tube and determining a power supply control signal; the transmission module comprises a photoelectric transceiving link; the photoelectric transceiving link is used for transmitting a power supply control signal; acquiring state information of the power supply module; and the control module is used for adjusting the power supply control signal according to the state information of the power supply module, so that the power supply module outputs an electric signal value meeting the control instruction. According to the electronic tube power supply control device, the state information of the power supply module is monitored in real time, and the output electric signal value is adjusted. And real-time detection and protection of the output state of the electronic tube curtain grid are realized. And determining a curtain grid voltage value corresponding to the anode voltage value according to the anode voltage value so as to realize compatibility with different electron tubes. Optical signal transmission is adopted, interference can be reduced, and signal transmission is kept stable.

Description

Technical Field

[0001] The present disclosure relates to the technical field of transmitter control, and in particular to a vacuum tube power supply control device and electronic equipment. Background Art

[0002] High-power electron tubes are the core role in shortwave transmitters, especially in high-power scenarios. Their high voltage resistance, strong overload resistance and linear characteristics make them the first choice for application. Among them, the ideal power supply voltage of the electron tube's screen grid is related to the voltage of the anode. However, the screen grid in existing transmitters is usually provided with a fixed voltage or a simple graded voltage by a voltage-stabilized power supply, which cannot respond to the dynamic changes of the anode modulation voltage in real time. During the modulation process, the anode voltage will fluctuate with the modulation signal, and the fixed screen grid voltage will cause the working point of the electron tube to shift, resulting in nonlinear distortion: and the screen grid lacks an overcurrent protection mechanism, and is easily burned due to instantaneous overcurrent at the modulation peak or load mismatch. Moreover, the corresponding relationship between the screen grid and the anode voltage of the electron tube of different transmitters is different, and the traditional control device is not compatible with multiple transmitters. In summary, there is an urgent need for a power supply control device that is compatible with multiple transmitters and can provide protection for the electron tube. Summary of the Invention

[0003] The embodiments of the present disclosure provide a vacuum tube power supply control device and an electronic device to solve the problems that existing power supply control devices are not compatible with a variety of vacuum tubes and lack fault protection and status monitoring for the vacuum tubes.

[0004] Based on the above problems, in a first aspect, an embodiment of the present disclosure provides an electron tube power supply control device, comprising: a control module, a transmission module, and a power supply module; The control module is used to determine the electrical signal value of the corresponding electrode of the controlled electron tube according to the control instruction, and determine the power supply control signal according to the electrical signal value; The transmission module includes a plurality of optoelectronic transceiver links; the optoelectronic transceiver links are used to transmit the power supply control signal to the power supply module; and obtain the status information of the power supply module and feed it back to the control module; The control module is further configured to adjust the power supply control signal according to the status information of the power supply module, so that the power supply module outputs an electrical signal value that satisfies the control instruction under the control of the adjusted power supply control signal.

[0005] In combination with the first aspect, in a possible implementation, the power supply module includes a plurality of power units; the power units are configured to control their own switching states according to the power supply control signal and generate corresponding electrical signals; The power supply module is used to superimpose the electrical signals output by all power units and output them to the corresponding electrodes of the controlled electron tube; and to send the status information of the power supply module to the control module through the transmission module; the status information of the power supply module is represented by the status of the power unit.

[0006] In combination with the first aspect, in one possible implementation, when it is determined that any power unit is in an abnormal state, a shutdown instruction is sent to shut down the arbitrary power unit; and the electrical signal values output by other power units are adjusted to maintain the electrical signal values that meet the control instruction.

[0007] In combination with the first aspect, in a possible implementation, the device includes: an interface circuit, an operational amplifier circuit, and an optoelectronic transceiver unit; The interface circuit is connected to the control module and is used to transmit the power supply control signal to the optoelectronic transceiver unit through the operational amplifier circuit; and receive the status information of the power supply module transmitted by the optoelectronic transceiver unit; The optoelectronic transceiver unit includes a plurality of optical transmitters and a plurality of optical receivers; the optical transmitter is used to convert the power supply control signal from an electrical signal into an optical signal and send it to the power supply module; The optical receiver is used to receive status information of the power supply module, convert the status information into an electrical signal, and transmit the electrical signal to the interface circuit via the operational amplifier circuit; The operational amplifier circuit is used to provide gain for the power supply control signal and the status information respectively.

[0008] In combination with the first aspect, in a possible implementation, the device includes: a logic operator, an electro-optical converter, a first resistor, a second resistor, and a first diode; The logic operator is configured to perform a logic operation based on the output enable signal of the control module and the power supply control signal to generate a first pulse signal; The first input terminal of the logic operator is connected to the enable signal output terminal of the control module to receive the output enable signal; the second input terminal of the logic operator is connected to the interface circuit through the operational amplifier circuit to receive the power supply control signal; the output terminal of the logic operator is connected to the first terminal of the electro-optical converter to output the first pulse signal to the electro-optical converter; One end of the first resistor is grounded, and the other end is connected to the second input end of the logic operator; the first resistor is used to pull down the input level; One end of the second resistor is connected to the power supply, and the other end is connected to the cathode of the first diode; the second resistor is used to pull up the input level; The anode of the first diode is connected to the first end of the electro-optical converter; the first diode is used to limit the input voltage; The second end of the electro-optical converter is grounded; the third end of the electro-optical converter is connected to the power supply module; the electro-optical converter is used to perform electro-optical conversion on the first pulse signal to obtain a first optical signal, and output the first optical signal to the power supply module.

[0009] In combination with the first aspect, in a possible implementation manner, the device includes: a photoelectric converter, a first capacitor, and a third resistor; The photoelectric converter is used to receive the status information from the power supply module, convert the status information into a second pulse signal, and output it to the interface circuit via the operational amplifier circuit; The input end of the photoelectric converter is connected to the power supply module to receive the status information; the first end of the photoelectric converter is grounded and connected to one end of the first capacitor; the second end of the photoelectric converter is connected to the power supply and the other end of the first capacitor respectively; the third end of the photoelectric converter is connected to the fourth end of the photoelectric converter, and is connected to the interface circuit through the operational amplifier circuit to output the second pulse signal; One end of the third resistor is connected to the power supply, and the other end of the third resistor is connected to the third end and the fourth end of the photoelectric converter respectively; the third resistor is used to limit the input current.

[0010] In combination with the first aspect, in a possible implementation manner, the control module includes: a power supply calculation unit, a signal analysis unit, and a signal generation unit; The power supply calculation unit is used to obtain the control instruction and determine the target value of the electrical signal of the corresponding electrode of the electron tube according to the control instruction and a preset corresponding relationship; The signal generating unit is configured to generate a power supply control signal for controlling the power supply module to output the electrical signal value according to the electrical signal target value; The signal analysis unit is used to obtain and analyze the status information of the power supply module, and determine the status and actual output electrical signal value of each power unit according to the status information.

[0011] In combination with the first aspect, in a possible implementation manner, the control module further includes: a storage module; The signal analysis unit includes: a signal output unit, a bit synchronization unit and a word synchronization unit; The bit synchronization unit is used to detect each data packet in the status information and pack a preset number of data packets into a data group; the data group includes: a status bit and a data bit; The word synchronization unit is used to parse the status bit and data bit of the data group, determine the status of the power unit according to the status bit, determine the actual output electrical signal value of the power unit according to the data bit, and output them to the storage module and the signal output unit respectively; The signal output unit is used to output the state of the power unit and the actual output electrical signal value of the power unit to other units in the control module; The signal generating unit is further configured to determine whether the corresponding power unit is in an abnormal state according to the state of the power unit and the actual output electrical signal value of the power unit; The storage module is used to store the status of the power unit and the actual output electrical signal value of the power unit, so that the upper computer of the electron tube power supply control device can retrieve them as needed.

[0012] In combination with the first aspect, in a possible implementation, the device further includes: an anode sampling module; The anode sampling module includes: a sampling unit and an analog-to-digital conversion unit; The sampling unit is used to obtain the actual output value of the electric signal of the anode of the electron tube; The analog-to-digital conversion unit is used to digitally convert the electrical signal value actually output by the electron tube anode and output it to the host computer of the electron tube power supply control device.

[0013] A second aspect of the present disclosure provides an electronic device, comprising the electron tube power supply control device provided by any one of the first aspects.

[0014] The beneficial effects of the embodiments of the present disclosure include: An embodiment of the present disclosure provides a vacuum tube power supply control device comprising: a control module, a transmission module, and a power supply module. The control module is configured to determine, based on a control instruction, the electrical signal value of the corresponding electrode of the controlled vacuum tube and determine a power supply control signal based on the electrical signal value. The transmission module comprises multiple optoelectronic transceiver links, the optoelectronic transceiver links being configured to transmit the power supply control signal to the power supply module, and to obtain status information of the power supply module and feed it back to the control module. The control module is further configured to adjust the power supply control signal based on the status information of the power supply module, so that the power supply module, under the control of the adjusted power supply control signal, outputs an electrical signal value that satisfies the control instruction. The vacuum tube power supply control device provided by the present disclosure can monitor the status information of the power supply module in real time and adjust the output electrical signal value accordingly. This method enables real-time detection and protection of the vacuum tube screen grid output status. Furthermore, the present disclosure can determine the corresponding screen grid voltage value based on the anode voltage value according to a pre-set correspondence relationship, and this correspondence relationship can be modified accordingly based on the different vacuum tubes, achieving compatibility with different transmitters and different vacuum tubes. At the same time, the transmission module provided by the present disclosure adopts optical signal transmission, which can better adapt to the complex electromagnetic environment inside the transmitter, reduce interference, and maintain stable signal transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic structural diagram of a tube power supply control device provided in an embodiment of the present disclosure; Figure 2 A schematic diagram of the structure of an optoelectronic transceiver link provided in an embodiment of the present disclosure; Figure 3 A schematic diagram of the structure of an optical transmitter provided in an embodiment of the present disclosure; Figure 4 A schematic diagram of the structure of an optical receiver provided in an embodiment of the present disclosure; Figure 5 A schematic diagram of the control module structure provided in an embodiment of the present disclosure; Figure 6 A schematic diagram of the structure of a signal analysis unit provided in an embodiment of the present disclosure; Figure 7 A schematic diagram of a pulse waveform of status information provided by an embodiment of the present disclosure; Figure 8 This is a schematic structural diagram of the anode sampling module provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0016] The present disclosure provides an electron tube power supply control device and electronic device. Preferred embodiments of the present disclosure are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are intended only to illustrate and explain the present disclosure and are not intended to limit the present disclosure. Furthermore, the embodiments and features of the embodiments may be combined unless there is a conflict.

[0017] The embodiment of the present disclosure provides a power supply control device for an electron tube, such as Figure 1 As shown, it includes: a control module 1, a transmission module 2 and a power supply module 3; The control module 1 is used to determine the electrical signal value of the corresponding electrode of the controlled electron tube according to the control instruction, and determine the power supply control signal according to the electrical signal value; The transmission module 2 includes a plurality of optical transceiver links; the optical transceiver links are used to transmit the power supply control signal to the power supply module 3; and obtain the status information of the power supply module 3 and feed it back to the control module 1; The control module 1 is further configured to adjust the power supply control signal according to the status information of the power supply module 3 so that the power supply module 3 outputs an electrical signal value that satisfies the control instruction under the control of the adjusted power supply control signal.

[0018] In the embodiment of the present disclosure, the electron tube may be a core component of the radio frequency transmitter. Different radio frequency transmitters may use different electron tubes, such as triodes and tetrodes, according to their needs.

[0019] The structure of a triode may include three electrodes (i.e., cathode, gate, and anode). The cathode can be stimulated to emit electrons; the anode can be applied with a positive voltage relative to the cathode to attract electrons to form an electron flow from the cathode to the anode; the gate can be set between the cathode and the anode, and by applying different voltages to the gate, the electrons emitted by the cathode can be repelled or absorbed, and finally the output signal of the anode can be controlled by controlling the gate voltage. Transmitters using triode tubes as the transmitting core are generally suitable for medium power (for example, output power less than ) application scenarios.

[0020] The tetrode is based on the triode, but with a screen grid added between the anode and the grid. By applying a positive voltage to the screen grid, the electrons emitted by the cathode can be accelerated to pass through the grid, and the inter-electrode capacitance between the grid and the anode can be reduced. Transmitters using a tetrode as the core are generally suitable for higher power (for example, output power greater than ) application scenarios.

[0021] The screen grid voltage value can be determined based on the voltage value applied by the anode. A certain correspondence exists between the screen grid voltage and the anode voltage. The electron tube power supply control device provided in the present disclosure can determine the corresponding screen grid voltage value based on the input anode voltage value and the predetermined correspondence between the anode voltage and the screen grid voltage. In the present disclosure, the anode voltage value can be provided by a host computer via a control instruction. The anode voltage value here can be a pre-set fixed voltage value or the actual anode voltage value sampled in real time.

[0022] In the present disclosure, the corresponding electrode of the controlled electron tube may refer to a screen grid, or may refer to other electrodes that have a corresponding relationship with the voltage value of the anode.

[0023] The execution subject of the control module 1 in the present disclosure may be a field programmable gate array (FPGA), which may have functions such as communication, calculation, storage, and signal transmission and reception.

[0024] The control module 1 can calculate the voltage value (i.e., the electrical signal value) of the electron tube screen grid (i.e., the corresponding electrode) based on the anode voltage value in the received control instruction according to a preset correspondence relationship. The preset correspondence relationship here can be a linear correspondence relationship. The host computer can adjust this linear correspondence relationship (i.e., the slope and intercept) accordingly based on the different transmitter electron tubes, thereby achieving compatibility of the power supply control device with different models of transmitters.

[0025] The control module 1 can further generate a corresponding power supply control signal based on the calculated voltage value of the electron tube screen grid. The power supply control signal can control the number of power units in the power supply module 3 that are turned on, as well as the voltage value output by each power unit. This ensures that the voltage value ultimately output by the power supply module 3 to the corresponding electrode satisfies the corresponding relationship with the anode electrical signal value provided by the control instruction.

[0026] The power supply control signal can be transmitted to the power supply module 3 through the transmission module 2. The transmission module 2 includes multiple optoelectronic transceiver links, each of which can correspond to a power unit. Each power unit can control its own on and off, as well as its own output voltage value according to the power supply control signal. The power supply module 3 can also feedback the status information of the power supply module 3 during operation to the control module 1. The control module 1 can analyze the working status of each power unit based on the status information and adjust the power supply control signal so that the voltage value output by the power supply module 3 remains stable and satisfies the corresponding relationship with the anode electrical signal value.

[0027] The electron tube power supply control device may also include a communication module and a power supply module. The communication module may be a circuit based on the Universal Serial Bus (USB) protocol. This circuit, with a USB controller as its core, generates and parses USB data packets based on input signals, thereby establishing a communication connection between the host computer and the electron tube power supply control device and enabling data exchange between the two.

[0028] The power module can transform and filter the external power supply to provide different types of power for the entire electronic tube power supply control device. 、 、 、 and Various power supply voltages can be provided to meet the different voltage requirements of different modules in the electronic tube power supply control device.

[0029] The electron tube power supply control device provided by the present disclosure can monitor the status information of the power supply module in real time, and can adjust the output electrical signal value in time according to the status information. In this way, the real-time detection and protection of the electron tube screen grid output status can be achieved. Furthermore, the present disclosure can determine the corresponding screen grid voltage value according to the anode voltage value based on a pre-set correspondence, and this correspondence can be modified accordingly according to the different electron tubes to achieve compatibility with different transmitters and different electron tubes. At the same time, the transmission module provided by the present disclosure adopts optical signal transmission, which can better adapt to the complex electromagnetic environment inside the transmitter, reduce interference, and maintain stable signal transmission.

[0030] In another embodiment provided by the present disclosure, the power supply module includes a plurality of power units; the power units are configured to control their own switching states according to the power supply control signal and generate corresponding electrical signals; The power supply module is used to superimpose the electrical signals output by all power units and output them to the corresponding electrodes of the controlled electron tube; and to send the status information of the power supply module to the control module through the transmission module; the status information of the power supply module is represented by the status of the power unit.

[0031] In the embodiment of the present disclosure, the power supply control signal received by the power unit can be a control signal based on pulse width modulation (PWM) technology. By changing the duty cycle of the power supply control signal, the output of the power device can be adjusted. The larger the duty cycle, the greater the proportion of the conduction time of the switching device in the power unit within a fixed period, the greater the average output voltage and current, and the greater the output power; when the duty cycle is 0, the power unit is in a shutdown state with the output turned off.

[0032] The power supply module includes multiple power units, which can add together the voltages output by all the power supply units and output them to the controlled electrodes of the electron tube (such as the screen grid).

[0033] The power supply module can also transmit its own status information to the control module. This status information can include the voltage value of each power unit, which can be collected by setting up a capacitor bank in the power unit. The voltage value of the capacitor bank is converted into a frequency pulse signal through a proportional voltage / frequency converter, and this frequency pulse signal is further output to the control module, thereby realizing the collection of the voltage value of each power module.

[0034] In another embodiment provided by the present disclosure, the control module is used to send a shutdown instruction to shut down any power unit when it is determined that any power unit is in an abnormal state; and adjust the electrical signal values output by other power units to maintain the electrical signal values that meet the control instruction.

[0035] In the embodiment of the present disclosure, the control module can determine whether each power unit in the power supply module is in a normal state based on the status information of the power supply module, and can determine whether the power unit is in an abnormal state such as overcurrent, timeout or loss of step based on the status information. When the power unit is in these states, it means that the power unit is abnormal. The control module can adjust the output power supply control signal to control the power unit in the abnormal state to shut down (that is, adjust the duty cycle of the corresponding power supply control signal to 0). At the same time, in order to ensure that the electrical signal value output by the power supply module remains stable and meets the corresponding relationship with the anode voltage value, the control module can control and adjust the electrical signal values output by other power units (for example, increase the duty cycle of the power supply control signal of other power units).

[0036] In another embodiment provided by the present disclosure, Figure 2 As shown, the optical-to-electrical transceiver link includes: an interface circuit 21, an operational amplifier circuit 22 and an optical-to-electrical transceiver unit 23; The interface circuit 21 is connected to the control module and is used to transmit the power supply control signal to the photoelectric transceiver unit 23 through the operational amplifier circuit 22; and receive the status information of the power supply module transmitted by the photoelectric transceiver unit 23; The optoelectronic transceiver unit 23 includes a plurality of optical transmitters and a plurality of optical receivers; the optical transmitter is used to convert the power supply control signal from an electrical signal into an optical signal and send it to the power supply module; The optical receiver is used to receive the status information of the power supply module, and convert the status information into an electrical signal, which is then transmitted to the interface circuit 21 via the operational amplifier circuit 22; The operational amplifier circuit 22 is configured to provide gains for the power supply control signal and the status information respectively.

[0037] In the embodiment of the present disclosure, the optoelectronic transceiver link can be connected to the control module through the interface circuit 21. In practical applications, the interface circuit 21 can be implemented as an interface based on the Small Computer System Interface (SCSI) protocol (for example, a Very High Density Connector Interface (VHDCI)).

[0038] The interface circuit 21 can receive the power supply control signal transmitted from the control module and output it to the operational amplifier circuit 22. The operational amplifier circuit 22 can amplify the input signal to improve the signal anti-interference ability and match the system impedance, thereby providing the transmission signal accuracy.

[0039] The power supply control signal is amplified by the operational amplifier circuit 22 and output to the optoelectronic transceiver unit 23. After being converted into an optical signal by the optical transmitter, it is output to the corresponding power unit in the power supply module. Optical fiber can be used as the medium for signal transmission between the optoelectronic transceiver unit 23 and the power supply module.

[0040] Similarly, the status information obtained by the power supply module can be transmitted to the optical receiver of the optoelectronic transceiver unit 23 in the form of an optical signal through an optical fiber, converted by the optical receiver into a corresponding electrical signal, output to the operational amplifier circuit 22, and output to the interface circuit 21 after the gain is adjusted by the operational amplifier circuit 22, and input into the control module through the interface circuit 21.

[0041] In another embodiment provided by the present disclosure, Figure 3 As shown, the optical transmitter includes: a logic operator 231, an electro-optical converter 232, a first resistor 233, a second resistor 234 and a first diode 235; The logic operator 231 is configured to perform a logic operation based on the output enable signal of the control module and the power supply control signal to generate a first pulse signal; The first input terminal of the logic operator 231 is connected to the enable signal output terminal of the control module to receive the output enable signal; the second input terminal of the logic operator 231 is connected to the interface circuit through the operational amplifier circuit to receive the power supply control signal; the output terminal of the logic operator 231 is connected to the first terminal of the electro-optical converter 232 to output the first pulse signal to the electro-optical converter 232; One end of the first resistor 233 is grounded, and the other end is connected to the second input end of the logic operator 231; the first resistor 233 is used to pull down the input level; One end of the second resistor 234 is connected to the power supply, and the other end is connected to the cathode of the first diode 235; the second resistor 234 is used to pull up the input level; The anode of the first diode 235 is connected to the first end of the electro-optical converter 232; the first diode 235 is used to limit the input voltage; The second end of the electro-optical converter 232 is grounded; the third end of the electro-optical converter 232 is connected to the power supply module; the electro-optical converter 232 is used to perform electro-optical conversion on the first pulse signal to obtain a first optical signal, and output the first optical signal to the power supply module.

[0042] In the disclosed embodiment, logic operator 231 can be an AND gate circuit. One input terminal (i.e., the first input terminal) of the AND gate circuit is connected to the enable output terminal of the control module, and the other input terminal (i.e., the second input terminal) receives the power supply control signal. According to the principle of the AND gate circuit, the AND gate circuit can only output the high and low levels corresponding to the power supply control signal when the enable signal is high. When the enable signal is low, the AND gate circuit can only output the low level. This method improves system security and further protects components in the optoelectronic transceiver link.

[0043] Electro-optical converter 232 can be a fiber optic transmitter that converts electrical signals into optical signals using the photoelectric effect of semiconductors. A power control signal input to electro-optical converter 232 is transmitted to a laser diode within electro-optical converter 232. Based on the power control signal level, the laser diode emits a corresponding optical signal, thereby transferring the information from the electrical signal to the optical signal. The emitted optical signal is then coupled into an optical fiber for transmission.

[0044] In another embodiment provided by the present disclosure, Figure 4 As shown, the optical receiver includes: a photoelectric converter 236, a first capacitor 237 and a third resistor 238; The photoelectric converter 236 is used to receive the status information from the power supply module and convert the status information into a second pulse signal, which is output to the interface circuit via the operational amplifier circuit; The input end of the photoelectric converter 236 is connected to the power supply module to receive the status information; the first end of the photoelectric converter 236 is grounded and connected to one end of the first capacitor 237; the second end of the photoelectric converter 236 is connected to the power supply and the other end of the first capacitor 237 respectively; the third end of the photoelectric converter 236 is connected to the fourth end of the photoelectric converter 236, and is connected to the interface circuit through the operational amplifier circuit to output the second pulse signal; One end of the third resistor 238 is connected to the power supply, and the other end of the third resistor 238 is connected to the third end and the fourth end of the photoelectric converter 236 respectively; the third resistor 238 is used to limit the input current.

[0045] In the disclosed embodiment, photoelectric converter 236 may be a fiber optic receiver that converts optical signals into electrical signals based on the photoelectric effect. When status information is transmitted to photoelectric converter 236 via an optical fiber, the photodiode within photoelectric converter 236 is illuminated by the status information in the form of an optical signal. Due to the photoelectric effect, the photon energy is absorbed, stimulating electrons within the photodiode, thereby generating a current and converting the optical signal into an electrical signal.

[0046] Similarly, the optical receiver can also be connected to another enable signal output port of the control module to receive the enable signal output by the port. Only when the enable signal is at a high level can the optical receiver output the corresponding status information to further protect the components in the optoelectronic transceiver link.

[0047] In another embodiment provided by the present disclosure, Figure 5 As shown, the control module 1 includes: a power supply calculation unit 11, a signal analysis unit 12 and a signal generation unit 13; The power supply calculation unit 11 is used to obtain the control instruction and determine the target value of the electrical signal of the corresponding electrode of the electron tube according to the control instruction and a preset corresponding relationship; The signal generating unit 13 is configured to generate a power supply control signal for controlling the power supply module to output the power signal value according to the target value of the power signal; The signal analysis unit 12 is used to obtain and analyze the status information of the power supply module, and determine the status and actual output electrical signal value of each power unit according to the status information.

[0048] In the embodiment of the present disclosure, the control module 1 may be an FPGA capable of executing multiple tasks, or may be a module composed of multiple execution units, each of which may execute corresponding tasks.

[0049] The control instruction may come from the host computer of the power supply control device. According to the anode voltage value in the control instruction, the power supply calculation unit 11 module may calculate the target voltage value that the screen grid needs to reach according to a preset linear correspondence.

[0050] The signal generating unit 13 can determine the number of power units to be turned on in the power supply module and the voltage value that each power unit should output according to the target voltage value, and further generate a corresponding power supply control signal for each power unit to control the corresponding power unit to output the corresponding voltage.

[0051] The signal parsing unit 12 can parse the status information of the power supply module and convert the pulse signal into a digital value to determine the operating status of each power unit (i.e., the status of each power unit and the actual output electrical signal value), and can output the parsed status information to other units of the control module 1. For example, the signal generating unit 13 can also determine whether each power unit is normal based on the status and actual output electrical signal value of the power unit. For abnormal units, the output voltage value of the power unit can be set to 0, and the output voltage values of other power units should be increased on average to compensate for the voltage drop caused by the loss of the power unit.

[0052] In another embodiment provided by the present disclosure, Figure 5 As shown, the control module 1 further includes: a storage module 14; The signal analysis unit 12, such as Figure 6 As shown, it includes: a signal output unit 123, a bit synchronization unit 121 and a word synchronization unit 122; The bit synchronization unit 121 is used to detect each data packet in the status information and pack a preset number of data packets into a data group; the data group includes: a status bit and a data bit; The word synchronization unit 122 is used to parse the status bit and data bit of the data group, determine the status of the power unit according to the status bit, determine the actual output electrical signal value of the power unit according to the data bit, and output them to the storage module 14 and the signal output unit 123 respectively; The signal output unit 123 is used to output the state of the power unit and the actual output electrical signal value of the power unit to other units in the control module 1; The signal generating unit 13 is further configured to determine whether the corresponding power unit is in an abnormal state according to the state of the power unit and the actual output electrical signal value of the power unit; The storage module 14 is used to store the status of the power unit and the actual output electrical signal value of the power unit, so that the host computer of the electron tube power supply control device can access them as needed.

[0053] In the disclosed embodiment, the storage module 14 may be a non-volatile storage, which may record the state of each power unit and the changes in the actual output electrical signal value. These data may be read by a host computer and retrieved as needed.

[0054] Status information from the power supply module, such as Figure 7As shown, it can be in the form of a pulse waveform, where each long low level is the interval between data groups, i.e., the packet header of the data group. When the first rising edge after the long low level is detected, it indicates that the pulse signal after the next preset time unit is valid data for the data group. In a valid pulse waveform, the levels of two consecutive preset time units represent a one-bit data packet. When the levels in the data packet are both low or both high, the code of the data packet is 0. When the levels of the two preset time units in the data packet are inconsistent, the code of the data packet is 1.

[0055] The bit synchronization unit 121 can detect data packets from the pulse waveform of the status information and package a preset number of consecutive data packets into a data group, each data group including a status bit and data bits. In the present disclosure, the preset number can be 16, with the first 4 data packets constituting the status bits and the last 12 data packets constituting the data bits.

[0056] The word synchronization unit 122 can determine the current status and actual output electrical signal value of the power unit that issued the data group based on the status and data bits of the data group. The first three bits of the status bit can represent whether the power unit is in overcurrent, timeout, or out-of-step conditions, respectively. The fourth bit represents a normal / error indication, with 0 indicating normal and 1 indicating abnormal. The fourth bit and the first three bits are ORed together. That is, when the power unit is completely normal, the status bit is 0000. When the corresponding abnormal state exists, the status bit is 1, and the fourth bit is also 1.

[0057] The data bit can represent the actual sampled electrical signal value of the power unit at that time. First, the 12-bit code of the data bit is converted into binary and the voltage value is obtained through the calculation formula. Here is an example to illustrate. Assuming that the code of the last 12 bits is 101001001011, the decimal value obtained after binary conversion is 2635. The obtained decimal value is substituted into the following calculation formula (1).

[0058] (1) in, is the decimal value obtained by conversion; 2047 is the decimal conversion rate; is the standard sampling voltage value, which can be taken as 2.5 in this disclosure; is the actual sampled voltage value. In this example, we can get .

[0059] Furthermore, the actual output voltage of the power unit can be calculated using the following formula (2).

[0060] (2) in, is the total resistance of the sampling circuit in the power unit, is the resistance value of the low-voltage side of the sampling circuit in the power unit, is the actual output voltage value.

[0061] In another embodiment provided by the present disclosure, Figure 1 As shown, it also includes: an anode sampling module 4; like Figure 8 As shown, the anode sampling module 4 includes: a sampling unit 41 and an analog-to-digital conversion unit 42; The sampling unit 41 is used to obtain the actual output value of the electric signal of the electron tube anode; The analog-to-digital conversion unit 42 is used to digitally convert the electrical signal value actually output by the electron tube anode and output it to the host computer of the electron tube power supply control device.

[0062] In the embodiment of the present disclosure, the anode sampling module 4 can obtain the electrical signal value actually output by the electron tube anode through the sampling unit 41, and convert this electrical signal value into a digital quantity through the analog-to-digital conversion unit 42 and transmit it to the host computer. The host computer can generate corresponding control instructions based on this value, so that the voltage value of the screen grid and the voltage value of the anode always maintain a stable corresponding relationship.

[0063] The present disclosure also provides an electronic device, comprising the electron tube power supply control device provided in any one of the above embodiments.

[0064] Through the above description of the embodiments, those skilled in the art will clearly understand that the embodiments of the present disclosure can be implemented through hardware or through software plus the necessary general-purpose hardware platform. Based on this understanding, the technical solutions of the embodiments of the present disclosure can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (such as a CD-ROM, USB flash drive, or mobile hard drive) and includes a number of instructions for causing a computer device (such as a personal computer, server, or network device) to execute the methods described in the various embodiments of the present disclosure.

[0065] Those skilled in the art will understand that the accompanying drawings are merely schematic diagrams of a preferred embodiment, and the modules or processes in the accompanying drawings are not necessarily required for implementing the present disclosure.

[0066] Those skilled in the art will appreciate that the modules in the devices of the embodiments may be distributed in the devices of the embodiments as described in the embodiments, or may be located in one or more devices different from the embodiments with corresponding changes. The modules of the above embodiments may be combined into one module or further split into multiple submodules.

[0067] The serial numbers of the above-mentioned embodiments of the present disclosure are for description only and do not represent the advantages or disadvantages of the embodiments.

[0068] Obviously, those skilled in the art may make various changes and modifications to the present disclosure without departing from the spirit and scope of the present disclosure. Thus, if these modifications and variations of the present disclosure fall within the scope of the claims of the present disclosure and their equivalents, the present disclosure is intended to include these modifications and variations.

Claims

1. A power supply control device for an electron tube, characterized in that: include: Control module, transmission module and power supply module; The control module is used to determine the electrical signal value of the corresponding electrode of the controlled electron tube according to the control instruction, and determine the power supply control signal according to the electrical signal value; The transmission module includes a plurality of optoelectronic transceiver links; the optoelectronic transceiver links are used to transmit the power supply control signal to the power supply module; and obtain the status information of the power supply module and feed it back to the control module; The control module is further configured to adjust the power supply control signal according to the status information of the power supply module, so that the power supply module outputs an electrical signal value that satisfies the control instruction under the control of the adjusted power supply control signal.

2. The device according to claim 1, wherein The power supply module includes a plurality of power units; the power units are used to control their own switching states according to the power supply control signal and generate corresponding electrical signals; The power supply module is used to superimpose the electrical signals output by all power units and output them to the corresponding electrodes of the controlled electron tube; And the status information of the power supply module is sent to the control module through the transmission module; the status information of the power supply module is represented by the status of the power unit.

3. The device according to claim 2, wherein The control module is used to send a shutdown instruction to shut down any power unit when it is determined that any power unit is in an abnormal state; and adjust the electrical signal values output by other power units to maintain the electrical signal values that meet the control instruction.

4. The device according to claim 1, wherein The optoelectronic transceiver link includes: an interface circuit, an operational amplifier circuit and an optoelectronic transceiver unit; The interface circuit is connected to the control module and is used to transmit the power supply control signal to the optoelectronic transceiver unit through the operational amplifier circuit; and receive the status information of the power supply module transmitted by the optoelectronic transceiver unit; The optoelectronic transceiver unit includes a plurality of optical transmitters and a plurality of optical receivers; the optical transmitter is used to convert the power supply control signal from an electrical signal into an optical signal and send it to the power supply module; The optical receiver is used to receive status information of the power supply module, convert the status information into an electrical signal, and transmit the electrical signal to the interface circuit via the operational amplifier circuit; The operational amplifier circuit is used to provide gain for the power supply control signal and the status information respectively.

5. The device according to claim 4, characterized in that The optical transmitter includes: a logic operator, an electro-optical converter, a first resistor, a second resistor and a first diode; The logic operator is configured to perform a logic operation based on the output enable signal of the control module and the power supply control signal to generate a first pulse signal; The first input terminal of the logic operator is connected to the enable signal output terminal of the control module to receive the output enable signal; the second input terminal of the logic operator is connected to the interface circuit through the operational amplifier circuit to receive the power supply control signal; the output terminal of the logic operator is connected to the first terminal of the electro-optical converter to output the first pulse signal to the electro-optical converter; One end of the first resistor is grounded, and the other end is connected to the second input end of the logic operator; the first resistor is used to pull down the input level; One end of the second resistor is connected to the power supply, and the other end is connected to the cathode of the first diode; the second resistor is used to pull up the input level; The anode of the first diode is connected to the first end of the electro-optical converter; the first diode is used to limit the input voltage; The second end of the electro-optical converter is grounded; the third end of the electro-optical converter is connected to the power supply module; the electro-optical converter is used to perform electro-optical conversion on the first pulse signal to obtain a first optical signal, and output the first optical signal to the power supply module.

6. The device according to claim 4, characterized in that The optical receiver includes: a photoelectric converter, a first capacitor and a third resistor; The photoelectric converter is used to receive the status information from the power supply module, convert the status information into a second pulse signal, and output it to the interface circuit via the operational amplifier circuit; The input end of the photoelectric converter is connected to the power supply module to receive the status information; the first end of the photoelectric converter is grounded and connected to one end of the first capacitor; the second end of the photoelectric converter is connected to the power supply and the other end of the first capacitor respectively; the third end of the photoelectric converter is connected to the fourth end of the photoelectric converter, and is connected to the interface circuit through the operational amplifier circuit to output the second pulse signal; One end of the third resistor is connected to the power supply, and the other end of the third resistor is connected to the third end and the fourth end of the photoelectric converter respectively; the third resistor is used to limit the input current.

7. The device according to claim 1, wherein The control module includes: a power supply calculation unit, a signal analysis unit and a signal generation unit; The power supply calculation unit is used to obtain the control instruction and determine the target value of the electrical signal of the corresponding electrode of the electron tube according to the control instruction and a preset corresponding relationship; The signal generating unit is configured to generate a power supply control signal for controlling the power supply module to output the electrical signal value according to the electrical signal target value; The signal analysis unit is used to obtain and analyze the status information of the power supply module, and determine the status and actual output electrical signal value of each power unit according to the status information.

8. The device according to claim 7, wherein The control module further includes: a storage module; The signal analysis unit includes: a signal output unit, a bit synchronization unit and a word synchronization unit; The bit synchronization unit is used to detect each data packet in the status information and pack a preset number of data packets into a data group; the data group includes: a status bit and a data bit; The word synchronization unit is used to parse the status bit and data bit of the data group, determine the status of the power unit according to the status bit, determine the actual output electrical signal value of the power unit according to the data bit, and output them to the storage module and the signal output unit respectively; The signal output unit is used to output the state of the power unit and the actual output electrical signal value of the power unit to other units in the control module; The signal generating unit is further configured to determine whether the corresponding power unit is in an abnormal state according to the state of the power unit and the actual output electrical signal value of the power unit; The storage module is used to store the status of the power unit and the actual output electrical signal value of the power unit, so that the upper computer of the electron tube power supply control device can retrieve them as needed.

9. The device according to claim 1, wherein Also includes: Anode sampling module; The anode sampling module includes: a sampling unit and an analog-to-digital conversion unit; The sampling unit is used to obtain the actual output value of the electric signal of the anode of the electron tube; The analog-to-digital conversion unit is used to digitally convert the electrical signal value actually output by the electron tube anode and output it to the host computer of the electron tube power supply control device.

10. An electronic device, characterized in that: The invention comprises the electron tube power supply control device provided by any one of claims 1 to 9.

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