Multi-waveform pulse output circuit and device

Abstract

The present invention discloses a multi-waveform pulse output circuit and device, which includes a control module, a pulse output module, an adjustment module, a power supply module and a power supply switching module; the control module is used to output a first control signal, a second control signal and a third control signal to the power supply switching module, the adjustment module and the pulse output module respectively; the power supply switching module is used to be turned on or off according to the first control signal; the power supply module is used to provide power supply energy to the pulse output module when the power supply switching module is turned on; the pulse output module is used to control the transmission path of the power supply energy according to the second control signal, thereby outputting pulses of different polarities; the adjustment module is used to adjust the waveform of the pulse according to the third control signal, thereby realizing the output of pulses of multiple different forms and increasing application scenarios.

Description

Technical Field

[0001] The present invention relates to the field of electronic medicine, and in particular to a multi-waveform pulse output circuit and device. Background Art

[0002] Traditional pulse output circuits are capable of only unipolar or bipolar pulses, and are unable to output pulses with a variety of different waveforms, nor can the waveforms be adjusted as needed. When used in medical equipment, if multiple pulse waveforms are required, multiple different pulse output devices are required. Switching between these devices based on the required pulses results in high application costs.

[0003] Therefore existing technology still needs to be improved and improved. Summary of the Invention

[0004] In view of the above-mentioned deficiencies in the prior art, the object of the present invention is to provide a multi-waveform pulse output circuit and device, which can output pulses of various forms and increase the application scenarios.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A multi-waveform pulse output circuit comprises a control module, a pulse output module, a regulation module, a power supply module and a power supply switching module; the control module is used to output a first control signal, a second control signal and a third control signal to the power supply switching module, the regulation module and the pulse output module respectively; the power supply switching module is used to be turned on or off according to the first control signal; the power supply module is used to provide power supply energy to the pulse output module when the power supply switching module is turned on; the pulse output module is used to control the transmission path of the power supply energy according to the second control signal, thereby outputting pulses of different polarities; the regulation module is used to adjust the waveform of the pulse according to the third control signal.

[0007] The multi-waveform pulse output circuit further includes a feedback module, which is used to output a feedback signal to the control module. The control module determines whether the pulse output module is disconnected based on the feedback signal.

[0008] In the multi-waveform pulse output circuit, the pulse output module includes a pulse output port, a first output control channel, a second output control channel, a third output control channel and a fourth output control channel; each output control channel is used to receive the second control signal respectively, and control the transmission path of the power supply energy according to the second control signal, thereby controlling the pulse output port to output pulses of different polarities.

[0009] In the multi-waveform pulse output circuit, the power supply switching module includes a switch unit and an energy storage unit, and the switch unit is turned on or off according to the first control signal; the energy storage unit is used to store electrical energy when the switch unit is turned on, and to provide the power supply energy to the pulse output module when the switch unit is turned off.

[0010] In the multi-waveform pulse output circuit, the pulse output port includes a first port and a second port, the first port is connected to the first output control channel and the second output control channel, and the second port is connected to the third output control channel and the fourth output control channel.

[0011] In the multi-waveform pulse output circuit, the switching unit includes a first transistor, a second transistor, a first resistor, a second resistor and a third resistor; the base of the first transistor is connected to the control module through the first resistor, the emitter of the first transistor is grounded, the collector of the first transistor is connected to one end of the third resistor and the base of the second transistor through the second resistor, the emitter of the second transistor and the other end of the third resistor are connected to the power supply module; the collector of the second transistor is connected to the energy storage unit, the regulation module and the pulse output module.

[0012] In the multi-waveform pulse output circuit, the energy storage unit includes a first capacitor and a fourth resistor; one end of the first capacitor and one end of the fourth resistor are both connected to the collector of the second transistor, and the other end of the first capacitor and the other end of the fourth resistor are both grounded.

[0013] In the multi-waveform pulse output circuit, the adjustment module includes a fifth resistor, a sixth resistor and a third transistor; the base of the third transistor is connected to the control module through the fifth resistor, the emitter of the third transistor is grounded, and the collector of the third transistor is connected to the collector of the third transistor through the sixth resistor.

[0014] In the multi-waveform pulse output circuit, the feedback module includes a seventh resistor, an eighth resistor, a first diode, a second diode and a fourth transistor; one end of the seventh resistor is connected to the pulse output module, the other end of the seventh resistor and one end of the eighth resistor are both connected to the base of the fourth transistor, the emitter of the fourth transistor is grounded, and the collector of the fourth transistor is connected to the control module; the other end of the eighth resistor and the cathode of the second diode are both grounded, the anode of the second diode is connected to the cathode of the first diode, and the anode of the first diode is connected to the pulse output module.

[0015] A multi-waveform pulse output device includes a PCB board, on which the multi-waveform pulse output circuit as described above is arranged.

[0016] Compared with the prior art, the present invention provides a multi-waveform pulse output circuit and device, wherein the multi-waveform pulse output circuit includes a control module, a pulse output module, an adjustment module, a power supply module and a power supply switching module; the control module is used to output a first control signal, a second control signal and a third control signal to the power supply switching module, the adjustment module and the pulse output module respectively; the power supply switching module is used to be turned on or off according to the first control signal; the power supply module is used to provide power supply energy to the pulse output module when the power supply switching module is turned on; the pulse output module is used to control the transmission path of the power supply energy according to the second control signal, thereby outputting pulses of different polarities; the adjustment module is used to adjust the waveform of the pulse according to the third control signal, thereby realizing the output of pulses of multiple different forms and increasing application scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A structural block diagram of a multi-waveform pulse output circuit provided by the present invention;

[0018] Figure 2 A circuit schematic diagram of the power supply switching module, regulation module, pulse output module and feedback module in the multi-waveform pulse output circuit provided by the present invention;

[0019] Figure 3a 、 Figure 3b 、 Figure 3c and Figure 3d They are waveform diagrams of unipolar positive pulse, unipolar negative pulse, bipolar pulse and irregular pulse in the multi-waveform pulse output circuit provided by the present invention.

[0020] Figure 4 This is a circuit schematic diagram of the power supply module in the multi-waveform pulse output circuit provided by the present invention. DETAILED DESCRIPTION

[0021] The present invention provides a multi-waveform pulse output circuit and device, which can output pulses of various forms and increase application scenarios.

[0022] In order to make the purpose, technical solution and effect of the present invention clearer and more specific, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0023] See also Figure 1A multi-waveform pulse output circuit provided by the present invention is connected to a load, and the multi-waveform pulse output circuit includes a control module 100, a pulse output module 200, an adjustment module 300, a power supply module 400 and a power supply switching module 500; the control module 100 is respectively connected to the power supply module 400, the power supply switching module 500, the pulse output module 200 and the adjustment module 300; the power supply module 400 is connected to the power supply switching module 500, the adjustment module 300 and the pulse output module 200, and the pulse output module 200 is also connected to the load.

[0024] Wherein, the control module 100 is used to output the first control signal HV1_CTRL, the second control signal and the third control signal ASY_CTRL to the power supply switching module 500, the adjustment module 300 and the pulse output module 200 respectively; the power supply switching module 500 is used to be turned on or off according to the first control signal HV1_CTRL. In this embodiment, when the first control signal HV1_CTRL is a high-level signal, the power supply switching module 500 is turned on, and when the first control signal HV1_CTRL is a low-level signal, the power supply switching module 500 is turned off; the power supply module 400 is used to provide power supply energy HV to the pulse output module 200 when the power supply switching module 500 is turned on. In this embodiment, the power supply energy HV is the high-voltage electric energy required by the pulse output module 200; the pulse output module 200 is used to control the transmission path of the power supply HV according to the second control signal, and then output pulses of different polarities to the load. Specifically, according to the adjustment, the same multi-waveform pulse output circuit can output unipolar positive pulses, unipolar negative pulses and bipolar pulses, etc.; the adjustment module 300 is used to adjust the waveform of the pulse according to the third control signal ASY_CTRL. Therefore, the multi-waveform pulse output circuit in the present invention can output pulses of various different waveforms, so that a multi-waveform pulse output circuit can output pulses of various different waveforms as needed. In actual application, there is no need to switch circuits or devices, and it can adapt to various application scenarios, thereby expanding the scope of application.

[0025] Furthermore, the multi-waveform pulse output circuit also includes a feedback module 600, which connects the pulse output module and the control module 100; the feedback module 600 is used to output a feedback signal P_To_MCU to the control module 100, and the control module 100 determines whether the pulse output module 200 is disconnected based on the feedback signal P_To_MCU; specifically, when the multi-waveform pulse output circuit is working, the control module 100 can output different first control signals HV1_CTRL, the second control signal and the third control signal ASY_CTRL, and then the feedback module 600 outputs a feedback signal P_To_MCU to the control module 100, and then the control module 100 determines whether the pulse output module is disconnected based on the feedback signal P_To_MCU, so as to realize the automatic detection function of the multi-waveform pulse output circuit and ensure the reliability of the operation of the multi-waveform pulse output circuit.

[0026] Further, see Figure 2 The pulse output module 200 includes a pulse output port, a first output control channel 210, a second output control channel 220, a third output control channel 230 and a fourth output control channel 240. The first output control channel 210, the second output control channel 220, the third output control channel 230 and the fourth output control channel 240 are all connected to the control module 100; the first output control channel 210 is also connected to the pulse output port, the power supply switching module 500 and the adjustment module 300, the second output control channel 220 is also connected to the pulse output port and the feedback module 600, the third output control channel 230 is also connected to the pulse output port, the power supply switching module 500 and the adjustment module 300, the fourth output control channel 240 is also connected to the pulse output port and the feedback module 600, and the pulse output port is connected to a load.

[0027] Specifically, each output control channel is used to receive the second control signal respectively, and control the transmission path of the power supply energy according to the second control signal, thereby controlling the pulse output port to output pulses of different polarities; in this embodiment, the second control signal includes four CONTROL_1, CONTROL_2, CONTROL_3 and CONTROL_4, each of which controls one of the output control channels respectively. When the second control signal is a high-level signal, the corresponding output control channel is turned on; when the second control signal is a low-level signal, the corresponding output control channel is turned off.

[0028] When the multi-waveform pulse output circuit is working, and the first control signal HV1_CTRL is a high-level signal and the third control signal ASY_CTRL is a low-level signal, if the control module 100 outputs the second control signals CONTROL_1 and CONTROL_4 as high-level signals and the second control signals CONTROL_2 and CONTROL_3 as low-level signals, then the first output control channel 210 and the fourth control channel are turned on and participate in the work, and the second output control channel 220 and the third output control channel 230 are disconnected and do not participate in the work. At this time, the power supply HV is transmitted through the first output control channel 210 to the pulse output port, passes through the load connected to the pulse output port, and then to the fourth output control channel 240, and then passes through the feedback module 600 to form a path to the ground. At this time, the pulse passing through the load is the unipolar positive pulse (such as Figure 3a As shown); if the control module 100 outputs the second control signals CONTROL_1 and CONTROL_4 as low-level signals, and the second control signals CONTROL_2 and CONTROL_3 as high-level signals, the first output control channel 210 and the fourth control channel are disconnected and do not participate in the work, the second output control channel 220 and the third output control channel 230 are turned on and participate in the work, and the power supply HV is transmitted to the pulse output port through the third output control channel 230, passes through the load connected to the pulse output port, and then flows through the second output control channel 220, and then passes through the feedback module 600 to form a path to the ground. At this time, the pulse passing through the load is the unipolar negative pulse (as shown). Figure 3b As shown); If the control module 100 controls all four output control channels to work and the first output control channel 210, the fourth output control channel 240, the second output control channel 220 and the third output control channel 230 are alternately turned on, it is equivalent to controlling the second control signals CONTROL_1 and CONTROL_4 and the second control signals CONTROL_2 and CONTROL_3 to be alternately high level signals. At this time, the pulse passing through the load is a bipolar pulse (such as Figure 3c As shown), the output of pulses of various polarities is achieved.

[0029] Furthermore, the power supply switching module 500 includes a switch unit 510 and an energy storage unit 520, the switch unit 510 is connected to the control module 100, the energy storage unit 520 and the first output control channel 210 and the third output control channel 230; the switch unit 510 is turned on or off according to the first control signal HV1_CTRL; the energy storage unit 520 is used to store electrical energy when the switch unit 510 is turned on, and to provide the pulse output module 200 with the power supply energy HV when the switch unit 510 is turned off. The switch unit 510 is turned on or off according to the first control signal HV1_CTRL. 1_CTRL is turned on when it is a high-level signal. At this time, the power supply module 400 provides high-voltage electric energy to the pulse output module 200, and the corresponding energy storage unit 520 stores a part of the electric energy; the switch unit 510 is disconnected when the first control signal HV1_CTRL is a low-level signal, and the power supply module 400 does not supply power. At this time, the energy storage unit 520 supplies power to the pulse output module 200. Therefore, the switch module can control whether the pulse output module 200 inputs high-voltage electric energy, so that the pulse output module 200 can subsequently output pulses of different waveforms according to the second control signal.

[0030] Furthermore, the pulse output port includes a first port P1 and a second port P2, the first port P1 is connected to the first output control channel 210 and the second output control channel 220, the second port P2 is connected to the third output control channel 230 and the fourth output control channel 240, when the first output control channel 210 and the fourth output control channel 240 are turned on, and the second output control channel 220 and the third output control channel 230 are turned off, the power supply HV is transmitted through the first output control channel 210 to the first port P1, from the first port P1 to the second port P2 through the load, and then to the fourth output control channel 240 through the second port P2. 40, and finally forms a loop to the ground through the feedback module 600; when the first output control channel 210 and the fourth output control channel 240 are disconnected, and the second output control channel 220 and the third output control channel 230 are connected, the power supply HV is transmitted through the third output control channel 230 to the second port P2, and then from the second port P2 through the load to the first port P1, through the first port P1 to the second output control channel 220, and finally forms a loop to the ground through the feedback module 600; thus, by controlling the working states of different channels, the first port P1 and the second port P2 can output pulses of different polarities, thereby meeting the needs of existing multi-waveform pulses.

[0031] For further information, please refer to Figure 2The switch unit 510 includes a first transistor Q1, a second transistor Q2, a first resistor R1, a second resistor R2 and a third resistor R3; the base of the first transistor Q1 is connected to the control module 100 through the first resistor R1, the emitter of the first transistor Q1 is grounded, the collector of the first transistor Q1 is connected to one end of the third resistor R3 and the base of the second transistor Q2 through the second resistor R2, and the emitter of the second transistor Q2 and the other end of the third resistor R3 are connected to the power supply Module 400; the collector of the second transistor Q2 is connected to the energy storage unit 520, the regulation module 300 and the pulse output module 200. When the first control signal HV1_CTRL is at a high level, the first transistor Q1 is turned on, and then the second transistor Q2 is turned on. At this time, the high-voltage electric energy of the power supply module 400 flows to the pulse output module 200 through the second transistor Q2, so that the control module 100 can subsequently control the pulse output module 200 to output pulses of various forms.

[0032] Furthermore, the energy storage unit 520 includes a first capacitor C1 and a fourth resistor R4; one end of the first capacitor C1 and one end of the fourth resistor R4 are both connected to the collector of the second transistor Q2, and the other end of the first capacitor C1 and the other end of the fourth resistor R4 are both grounded. The first capacitor C1 stores electrical energy when the second transistor Q2 is turned on, and releases electrical energy when the second transistor Q2 is turned off, thereby providing the required electrical energy for the rear-end pulse output module 200.

[0033] Furthermore, the regulating module 300 includes a fifth resistor R5, a sixth resistor R6 and a third transistor Q3; the base of the third transistor Q3 is connected to the control module 100 through the fifth resistor R5, the emitter of the third transistor Q3 is grounded, and the collector of the third transistor Q3 is connected to the collector of the third transistor Q3 through the sixth resistor R6. When the third control signal ASY_CTRL is at a high level, the third transistor Q3 is turned on, and when the first control signal HV1_CTRL is at a low level, the regulating module 300 discharges the electric energy of the energy storage unit 520. At this time, combined with the working states of the four output control channels in the pulse output module 200, the waveform of the unipolar positive pulse, the unipolar negative pulse or the bipolar pulse can be changed, specifically by changing the slope of the waveform to change the original rectangular pulse into an asymmetric irregular pulse (such as Figure 3dAs shown), the existing pulse output circuit cannot output such asymmetric irregular pulses; specifically, by controlling the high level time of the first control signal HV1_CTRL and the on-time of the third control signal ASY_CTRL, the slope of the waveform of the irregular pulse when it falls can be adjusted to change the waveform shape, so as to output pulses of different shapes.

[0034] Furthermore, the feedback module 600 includes a seventh resistor R7, an eighth resistor R8, a first diode D1, a second diode D2 and a fourth transistor Q4; one end of the seventh resistor R7 is connected to the pulse output module 200, the other end of the seventh resistor R7 and one end of the eighth resistor R8 are both connected to the base of the fourth transistor Q4, the emitter of the fourth transistor Q4 is grounded, and the collector of the fourth transistor Q4 is connected to the control module 100; the other end of the eighth resistor R8 and the cathode of the second diode D2 are both grounded, the anode of the second diode D2 is connected to the cathode of the first diode D1, and the anode of the first diode D1 is connected to the pulse output module 200.

[0035] When the first control signal HV1_CTRL is a high level signal, the third control signal ASY_CTRL is a low level signal, the second control signals CONTROL_1 and CONTROL_2 are high level signals, and the second control signals CONTROL_3 and CONTROL_4 are low level signals, if the feedback signal P_To_MCU output by the feedback module 600 is a low level signal, the control module 100 can determine that the first output control channel 210 and the second output control channel 220 access circuit can work normally according to the feedback signal, and other modules in the circuit such as the power supply module 400, the adjustment module 300 and the power supply switching module 500 are also Access circuit, similarly, when the second control signals CONTROL_3 and CONTROL_4 are high-level signals and the second control signals CONTROL_1 and CONTROL_2 are low-level signals, if the feedback signal P_To_MCU is a low-level signal, the control module 100 can determine that the third output control channel 230 and the fourth output control channel 240 access circuit can work normally, which also indicates that there is no fault in the entire multi-waveform pulse output circuit and it can work normally; otherwise, it indicates that there is a fault in the multi-waveform pulse output circuit, and thus the self-test function of the multi-waveform pulse output circuit can be realized by combining the feedback module 600 with the control module 100.

[0036] Afterwards, if the second control signals CONTROL_1 and CONTROL_4 are high-level signals and the second control signals CONTROL_2 and CONTROL_3 are low-level signals, or if the second control signals CONTROL_2 and CONTROL_3 are high-level signals and the second control signals CONTROL_1 and CONTROL_4 are low-level signals, and the feedback signal P_To_MCU received by the control module 100 is a low-level signal, it can be determined that the load is normally connected to the first port P1 and the second port P2. Otherwise, it indicates that the load connection is abnormal. Therefore, the load detection function of the multi-waveform pulse output circuit can be realized through the setting of the feedback module 600. After the multi-waveform pulse output circuit enters the working state, the feedback module 600 can first be combined with the control module 100 to detect whether the multi-pulse output circuit is normal and whether the load is connected, thereby improving the safety and reliability of the multi-waveform pulse output circuit.

[0037] For further information, please refer to Figure 2 The first output control channel 210 includes a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11, a twelfth resistor R12, a fifth transistor Q5, and a sixth transistor Q6; the base of the fifth transistor Q5 is connected to the control module 100 through the ninth resistor R9, one end of the tenth resistor R10 is also connected to the base of the fifth transistor Q5, the other end of the tenth resistor R10 and the emitter of the fifth transistor Q5 are grounded, the collector of the fifth transistor Q5 is connected to one end of the eleventh resistor R11 and the base of the sixth transistor Q6 through the twelfth resistor R12, the other end of the eleventh resistor R11 and the emitter of the sixth transistor Q6 are both connected to the collector of the second transistor Q2, and the sixth transistor Q6 is connected to the collector of the second transistor Q2. The collector of the transistor Q5 is connected to the first port P1; when the second control signal CONTROL_1 output by the control module 100 is at a high level, the fifth transistor Q5 is turned on, thereby turning on the sixth transistor Q6, wherein the fifth transistor Q5 is an N-type transistor and the sixth transistor Q6 is a P-type transistor, then the first output control channel 210 is turned on, and the power supply HV can be delivered to the first port P1 through the first output control channel 210; conversely, when the second control signal CONTROL_1 is at a low level, the fifth transistor Q5 is turned off, the sixth transistor Q6 is turned off, and the first output control channel 210 is disconnected, thereby realizing the control module 100's control over the working state of the first output control channel 210.

[0038] Furthermore, the second output control channel 220 includes a thirteenth resistor R13, a fourteenth resistor R14, a fifteenth resistor R15, a sixteenth resistor R16, a seventh transistor Q7, and an eighth transistor Q8; the base of the seventh transistor Q7 is connected to the control module 100 through the thirteenth resistor R13, one end of the fourteenth resistor R14 is also connected to the base of the seventh transistor Q7, the other end of the fourteenth resistor R14 and the emitter of the seventh transistor Q7 are both grounded, and the collector of the seventh transistor Q7 is connected to the eighth transistor Q8 through the sixteenth resistor R16. 6 is connected to one end of the fifteenth resistor R15 and the base of the eighth transistor Q8, the other end of the fifteenth resistor R15 and the emitter of the eighth transistor Q8 are both connected to the first port P1, and the collector of the eighth transistor Q8 is connected to the anode of the first diode D1 and one end of the seventh resistor R7. Similarly, when the second control signal CONTROL_2 is at a high level, the seventh transistor Q7 and the eighth transistor Q8 are turned on, and the second output control channel 220 is turned on; otherwise, the second output control channel 220 is turned off.

[0039] Furthermore, the third output control channel 230 includes a seventeenth resistor R17, an eighteenth resistor R18, a nineteenth resistor R19, a twentieth resistor R20, a ninth transistor Q9, and a tenth transistor Q10; the base of the ninth transistor Q9 is connected to the control module 100 via the seventeenth resistor R17, one end of the eighteenth resistor R18 is also connected to the base of the ninth transistor Q9, the other end of the eighteenth resistor R18 and the emitter of the ninth transistor Q9 are grounded, and the collector of the ninth transistor Q9 is connected to the first transistor Q9 via the seventh resistor R17. The twentieth resistor R20 is connected to one end of the nineteenth resistor R19 and the base of the tenth transistor Q10. The other end of the nineteenth resistor R19 and the emitter of the tenth transistor Q10 are both connected to the collector of the second transistor Q2. The collector of the nineteenth transistor is connected to the second port P2. When the second control signal CONTROL_3 is at a high level, the ninth transistor Q9 and the tenth transistor Q10 are turned on, and the third output control channel 230 is turned on. Otherwise, the third output control channel 230 is turned off.

[0040] Furthermore, the fourth output control channel 240 includes a twenty-first resistor R21, a twenty-second resistor R22, a twenty-third resistor R23, a twenty-fourth resistor R24, an eleventh transistor Q11, and a twelfth transistor Q12; the base of the eleventh transistor Q11 is connected to the control module 100 through the twenty-first resistor R21, one end of the twenty-second resistor R22 is also connected to the base of the eleventh transistor Q11, the other end of the twenty-second resistor R22 and the emitter of the eleventh transistor Q11 are both grounded, and the collector of the eleventh transistor Q11 is connected to the base of the eleventh transistor Q11 through the twenty-first resistor R21. The fourth resistor R24 ​​is connected to one end of the twenty-third resistor R23 and the base of the twelfth transistor Q12. The other end of the twenty-third resistor R23 and the emitter of the twelfth transistor Q12 are both connected to the second port P2. The collector of the twelfth transistor Q12 is connected to the anode of the first diode D1 and one end of the seventh resistor R7. When the second control signal CONTROL_4 is at a high level, the eleventh transistor Q11 and the twelfth transistor Q12 are turned on, and the fourth output control channel 240 is turned on. Otherwise, the fourth output control channel 240 is disconnected.

[0041] When the control module 100 controls the first output control channel 210 and the fourth output control channel 240 to be turned on, the power supply HV passes through the sixth transistor Q6 to the first port P1, and then from the first port P1 through the load to the second port P2, and then from the second port P2 through the twelfth transistor Q12 to the feedback module 600 to form a path to the ground. At this time, the load receives a unipolar positive pulse; when the control module 100 controls the second output control channel 220 and the third output control channel 230 to be turned on, the power supply HV will pass through the thirteenth transistor Q13 to the second port P2, from the second port P2 through the load to the first port P1, and then from the first port P1 through the twelfth transistor Q12 to the feedback module 600 to form a path to the ground. The eighth transistor Q8 forms a path from the feedback module 600 to the ground, and at this time the load receives a unipolar negative pulse; on this basis, if the control module 100 controls the two groups of output control modules 100 to be alternately turned on, a bipolar pulse can be output; at this time, if the adjustment module 300 participates in the work to discharge discharge energy, the waveform of the unipolar positive pulse, or the unipolar negative pulse or the bipolar pulse can be changed, and the original rectangular pulse can be changed into an asymmetric irregular pulse, and the high level time of the first control signal HV1_CTRL and the conduction time of the third control signal ASY_CTRL can adjust the slope of the waveform of the irregular pulse when the waveform falls, thereby realizing the output of pulses of various forms and increasing the application scenarios.

[0042] Further, see Figure 4 The power supply module 400 includes a twenty-fifth resistor R25, an inductor L1, a second capacitor C2, a third diode D3, a fourth diode D4, a thirteenth transistor Q13, a third capacitor C3, a fourth capacitor C4, a twenty-sixth resistor R26 and a twenty-seventh resistor R27; one end of the second capacitor C2 and one end of the twenty-fifth resistor R25 are connected to the control module 100, the other end of the second capacitor C2, the other end of the twenty-fifth resistor R25 and the cathode of the third diode D3 are connected to the base of the thirteenth transistor Q13, the anode of the third diode D3 is grounded, the emitter of the thirteenth transistor Q13 is grounded, and the collector of the thirteenth transistor Q13 is connected to the base of the thirteenth transistor Q13 through one end of the inductor L1 and the fourth The positive electrode of the diode D4, the negative electrode of the fourth diode D4, one end of the third capacitor C3 and one end of the twenty-sixth resistor R26 are all connected to the emitter of the second transistor Q2, the other end of the twenty-sixth resistor R26, one end of the twenty-seventh resistor R27 and one end of the fourth capacitor C4 are all connected to the control module 100, the other end of the twenty-seventh resistor R27, the other end of the fourth capacitor C4 and the other end of the third capacitor C3 are all grounded, the inductor L1 is a boost inductor, and the control chip controls the conduction or shutdown of the thirteenth transistor Q13, thereby causing the inductor L1 to be repeatedly charged and discharged, completing the boosting process of the electrical energy input from the power supply end, so as to provide high-voltage electrical energy for the pulse output module 200.

[0043] Furthermore, the control module 100 includes a control chip. In this embodiment, the control chip is NXP QN9020, NXP LPC1114, Atmel SAMD20E16, etc. During specific implementation, the control chip can be selected according to needs, and the present invention does not limit this.

[0044] The present invention also provides a multi-waveform pulse output device, including a PCB board, on which the multi-waveform pulse output circuit as described above is provided. Since the multi-waveform pulse output circuit has been described in detail above, it will not be repeated here; the multi-waveform pulse output device in this embodiment can output pulses of various different forms. In actual application, only one pulse output device is used to obtain pulses of various different waveforms, thereby reducing the application cost.

[0045] In summary, in a multi-waveform pulse output circuit and device provided by the present invention, the multi-waveform pulse output circuit includes a control module, a pulse output module, an adjustment module, a power supply module and a power supply switching module; the control module is used to output a first control signal, a second control signal and a third control signal to the power supply switching module, the adjustment module and the pulse output module respectively; the power supply switching module is used to be turned on or off according to the first control signal; the power supply module is used to provide power supply energy to the pulse output module when the power supply switching module is turned on; the pulse output module is used to control the transmission path of the power supply energy according to the second control signal, and thereby output pulses of different polarities; the adjustment module is used to adjust the waveform of the pulse according to the third control signal, thereby realizing the output of pulses of multiple different forms and reducing application costs.

[0046] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of the present invention, and all these changes or substitutions should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A multi-waveform pulse output circuit, characterized in that: It includes a control module, a pulse output module, a regulating module, a power supply module and a power supply switching module; the control module is used to output a first control signal, a second control signal and a third control signal to the power supply switching module, the pulse output module and the regulating module respectively; the power supply switching module is used to turn on or off according to the first control signal; the power supply module is used to provide power supply energy to the pulse output module when the power supply switching module is turned on; The pulse output module is used to control the transmission path of the power supply energy according to the second control signal, thereby outputting pulses of different polarities; the multi-waveform pulse output circuit outputs unipolar positive pulses, unipolar negative pulses and bipolar pulses; the adjustment module is used to adjust the waveform of the pulse according to the third control signal; The power supply switching module includes a switch unit and an energy storage unit; The switch unit includes a first transistor, a second transistor, a first resistor, a second resistor, and a third resistor; the base of the first transistor is connected to the control module through the first resistor, the emitter of the first transistor is grounded, the collector of the first transistor is connected to one end of the third resistor and the base of the second transistor through the second resistor, and the emitter of the second transistor and the other end of the third resistor are connected to the power supply module; The collector of the second transistor is connected to the energy storage unit, the regulating module and the pulse output module; The energy storage unit includes a first capacitor and a fourth resistor; one end of the first capacitor and one end of the fourth resistor are both connected to the collector of the second transistor, and the other end of the first capacitor and the other end of the fourth resistor are both grounded; The regulating module includes a fifth resistor, a sixth resistor and a third triode; the base of the third triode is connected to the control module through the fifth resistor, the emitter of the third triode is grounded, and the collector of the third triode is connected to the collector of the third triode through the sixth resistor.

2. The multi-waveform pulse output circuit according to claim 1, characterized in that: It also includes a feedback module, which is used to output a feedback signal to the control module. The control module determines whether the pulse output module is disconnected according to the feedback signal.

3. The multi-waveform pulse output circuit according to claim 1, characterized in that: The pulse output module includes a pulse output port, a first output control channel, a second output control channel, a third output control channel and a fourth output control channel; each output control channel is used to receive the second control signal respectively, and control the transmission path of the power supply energy according to the second control signal, thereby controlling the pulse output port to output pulses of different polarities.

4. The multi-waveform pulse output circuit according to claim 1, wherein: The switch unit is turned on or off according to the first control signal; the energy storage unit is used to store electrical energy when the switch unit is turned on, and to provide the power supply energy to the pulse output module when the switch unit is turned off.

5. The multi-waveform pulse output circuit according to claim 3, characterized in that: The pulse output port includes a first port and a second port, the first port is connected to the first output control channel and the second output control channel, and the second port is connected to the third output control channel and the fourth output control channel.

6. The multi-waveform pulse output circuit according to claim 2, characterized in that: The feedback module includes a seventh resistor, an eighth resistor, a first diode, a second diode and a fourth transistor; one end of the seventh resistor is connected to the pulse output module, the other end of the seventh resistor and one end of the eighth resistor are both connected to the base of the fourth transistor, the emitter of the fourth transistor is grounded, and the collector of the fourth transistor is connected to the control module; the other end of the eighth resistor and the cathode of the second diode are both grounded, the anode of the second diode is connected to the cathode of the first diode, and the anode of the first diode is connected to the pulse output module.

7. A multi-waveform pulse output device, comprising a PCB board, characterized in that: The PCB board is provided with the multi-waveform pulse output circuit according to any one of claims 1 to 6.

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