CN214544259U - Low current high voltage pulse generator - Google Patents
Low current high voltage pulse generator Download PDFInfo
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- CN214544259U CN214544259U CN202120610172.6U CN202120610172U CN214544259U CN 214544259 U CN214544259 U CN 214544259U CN 202120610172 U CN202120610172 U CN 202120610172U CN 214544259 U CN214544259 U CN 214544259U
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Abstract
The utility model discloses a low current high voltage pulse generator, including switch voltage stabilizing unit, the unit that steps up, first electronic switch, switch block, the control unit and keypad, first electronic switch is established ties with switch voltage stabilizing unit's input, switch voltage stabilizing unit's output is connected with the input electricity of the unit that steps up, the output and the switch block of the unit that steps up are established ties, the drive end of switch block, first electronic switch's drive end and keypad are connected with the control unit electricity respectively, be equipped with the control button on the keypad. The utility model provides a low current high voltage pulse generator carries out the independent control to the control unit to reach certain protect function.
Description
Technical Field
The utility model relates to a pulse technical field, specifically speaking relates to a low current high voltage pulse generator.
Background
The low-current high-voltage pulse generator is generally powered by low voltage and then outputs high-voltage pulse after boosting. The existing pulse generator realizes all functions through a single chip microcomputer on a mainboard, so that the functions of the single chip microcomputer are complex, the single chip microcomputer cannot be controlled independently, and an accidental protection function is not provided.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a low current high voltage pulse generator carries out the independent control to the control unit to reach certain protect function.
The utility model discloses a technical scheme that low current high voltage pulse generator adopted is:
the utility model provides a low-current high-voltage pulse generator, includes switch voltage stabilizing unit, the unit that steps up, first electronic switch, switch block, the control unit and keypad, first electronic switch establishes ties with switch voltage stabilizing unit's input, switch voltage stabilizing unit's output is connected with the input electricity of the unit that steps up, the output and the switch block of the unit that steps up establish ties, the drive end of switch block, first electronic switch's drive end and keypad are connected with the control unit electricity respectively, be equipped with the control button on the keypad.
Preferably, the switch group includes a second electronic switch and a third electronic switch, the second electronic switch is connected in series to the output end of the voltage boosting unit, the driving end of the second electronic switch is electrically connected to the input end of the third electronic switch, the driving end of the third electronic switch is electrically connected to the main control unit, and the output end of the third electronic switch is grounded.
Preferably, the boosting unit includes a transformer, a rectifier diode and a filter capacitor, an input end of the transformer is electrically connected to an output end of the switching voltage stabilizing unit, an output end of the transformer is connected in series with the rectifier diode and then connected in series with the switch bank, and is electrically connected to one end of the filter capacitor, and the other end of the filter capacitor is grounded.
Preferably, an indicator light is further arranged on the key board.
Preferably, the control unit comprises a single chip microcomputer and a peripheral circuit.
Preferably, the switching voltage stabilizing unit comprises a chip FP5139 and peripheral circuits thereof.
The utility model discloses a low current high voltage pulse generator's beneficial effect is: the control unit can be awakened through the control key and controlled to work or close. The control unit can drive the first electronic switch and the switch group to be conducted respectively after working, so that the switch voltage stabilizing unit starts to work after power supply is obtained, the switch voltage stabilizing unit outputs PWM signals to drive the boosting unit to work, the boosting unit boosts input voltage and then outputs the boosted input voltage, and the switch group outputs high-voltage pulse groups with the same frequency and the same duty ratio according to conducting frequency driven by the control unit. This scheme is through increasing keypad and first electronic switch to control the operating condition of control unit and switch voltage stabilizing unit for can control alone the control unit, and reach certain protect function.
Drawings
Fig. 1 is a schematic structural diagram of the low-current high-voltage pulse generator of the present invention.
Detailed Description
The invention will be further elucidated and described with reference to the following embodiments and drawings in which:
referring to fig. 1, the low-current high-voltage pulse generator includes a switch voltage-stabilizing unit, a voltage-boosting unit, a first electronic switch Q1, a switch group, a control unit, and a keypad. The first electronic switch Q1 is connected in series with the input end of the switch voltage-stabilizing unit, the output end of the switch voltage-stabilizing unit is electrically connected with the input end of the boosting unit, the output end of the boosting unit is connected in series with the switch group, the driving end of the first electronic switch Q1 and the key board are respectively electrically connected with the control unit, and the key board is provided with a control key S1.
The control unit can be awakened and controlled to operate or close through the control key S1. The control unit can drive the first electronic switch Q1 and the switch group to be conducted after working, so that the switch voltage stabilizing unit starts working after power supply, the switch voltage stabilizing unit outputs PWM signals to drive the boosting unit to work, the boosting unit boosts input voltage and outputs the boosted input voltage, and the switch group outputs high-voltage pulse groups with the same frequency and the same duty ratio according to conducting frequency driven by the control unit. This scheme is through increasing keypad and first electronic switch Q1 to control the operating condition of control unit and switch voltage stabilizing unit for can carry out the independent control to the control unit, and reach certain protect function.
In this embodiment, the low-current high-voltage pulse generator is powered by a battery, the battery directly supplies power to the switching voltage stabilizing unit and the control unit, and the first electronic switch Q1 is connected in series between the negative electrode of the battery and the switching voltage stabilizing unit. When the control key S1 is pressed for a long time, the keypad outputs a high level or a low level to the control unit to wake up the control unit, and when the control key S1 is pressed for a short time, the keypad outputs a high level or a low level to the control unit to control the control unit to operate. In another embodiment, a plurality of control keys S1 may be provided to implement different control functions.
In this embodiment, the switch group includes a second electronic switch a1413 and a third electronic switch 13001, the second electronic switch a1413 is connected in series to the output end of the voltage boosting unit, the driving end of the second electronic switch a1413 is electrically connected to the input end of the third electronic switch 13001, the driving end of the third electronic switch 13001 is electrically connected to the main control unit, and the output end of the third electronic switch 13001 is grounded. The control unit outputs a PWM signal to control the third electronic switch 13001 to be switched off and on, the third electronic switch 13001 to be switched off and on controls the second electronic switch A1413 to be switched on and off, and the second electronic switch A1413 to be switched on and off controls the voltage transformation unit to output a high-voltage pulse group.
In this embodiment, the boosting unit includes a transformer T1, a rectifier diode D1, and a filter capacitor C9. The input end of the transformer T1 is electrically connected with the output end of the switching voltage stabilizing unit, the output end of the transformer T1 is connected with the rectifying diode D1 in series and then is connected with the switch group in series, and is electrically connected with one end of the filter capacitor C9, and the other end of the filter capacitor C9 is grounded. The PWM signal output by the switching voltage stabilizing unit is boosted by a transformer T1, rectified by a rectifying diode D1 and filtered by a filter capacitor C9 and then output. The switching regulator block is also electrically connected to the feedback winding of the transformer T1 for feedback control of the PWM signal output by the switching regulator block.
In this embodiment, an indicator light is further disposed on the key board. The status of the control unit is indicated by means of indicator lights, which are in particular provided with a red light and a green light.
In this embodiment, the control unit includes a single chip microcomputer MCU1 and a peripheral circuit. The switching voltage stabilizing unit comprises a chip FP5139 and peripheral circuits thereof.
In this embodiment, the control key S1 on the key board is pressed for a long time, the red light is turned on to release the key after pressing 3S, the control key S1 is pressed for a short time, the green light is turned on, and the key board sends a signal to the MCU1 to notify the MCU1 of the start-up state. Then the singlechip MCU1 outputs high level to the first electronic switch Q1, the first electronic switch Q1 is switched on completely, and the battery voltage is added to the switch voltage stabilization unit. The switching voltage stabilizing unit is powered on to start working, energy is stored into the input end of the transformer T1 by starting a low-voltage MOS of the power loop, during the period of closing the MOS, the energy is coupled to the output end of the transformer T1, rectified by a rectifying diode D1, and smoothed by a filter capacitor C9 to obtain output high voltage. The direct current voltage of about 340V is output through the turn ratio setting and sampling control of the transformer T1, the output voltage is sampled by the feedback winding and sent to the switch voltage stabilizing unit for output voltage stabilizing control, and the output power can be set through the periphery of the switch voltage stabilizing unit. When the single-chip microcomputer MCU1 starts the first electronic switch Q1, a PWM signal with the frequency of about 30Hz and the duration of 140uS is output to the third electronic switch 13001, the third electronic switch 13001 is conducted along with PWM, when the third electronic switch 13001 is conducted, the second electronic switch A1413 is also conducted, so that high-voltage pulse voltage is output, when the PWM signal is in a low level, the third electronic switch 13001 is closed, the second electronic switch A1413 is simultaneously closed, and the output high-voltage pulse voltage disappears. The MCU1 repeatedly sends PWM signals and outputs high-voltage pulse groups with the same frequency and the same duty ratio as the PWM signals. If the work needs to be stopped, a user can press the control key S1 for 3S continuously, the single-chip microcomputer MCU1 closes the first electronic switch Q1, a voltage stabilizing unit loop is stopped, meanwhile, the PWM signal output to the third electronic switch 13001 is stopped, the output high voltage disappears, and the residual voltage is released through the discharging resistor. The keypad turns off all the LED indicators. The switch voltage stabilizing unit stops working due to the fact that the switch voltage stabilizing unit is cut off from a battery, and the loop single chip microcomputer MCU1 is in a standby low-power-consumption state to wait for a user to press keys. When the battery voltage is lower than 3.5V, the MCU1 flickers to prompt the user that the voltage is low and the user needs to be charged, and the system still continues to work, when the battery voltage is lower than 3.0V, the MCU1 cuts off the first electronic switch Q1, stops PWM output, and turns off the indicator light, and the system is in a protection state of low battery voltage and cannot work, and the user needs to do charging treatment.
It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.
Claims (6)
1. The utility model provides a low-current high-voltage pulse generator, its characterized in that includes switch voltage stabilizing unit, the unit that steps up, first electronic switch, switch block, the control unit and keypad, first electronic switch is established ties with switch voltage stabilizing unit's input, switch voltage stabilizing unit's output is connected with the input electricity of the unit that steps up, the output and the switch block of the unit that steps up establish ties, the drive end of switch block, first electronic switch's drive end and keypad are connected with the control unit electricity respectively, be equipped with the control button on the keypad.
2. The low-current high-voltage pulse generator according to claim 1, wherein the switch set comprises a second electronic switch and a third electronic switch, the second electronic switch is connected in series with the output terminal of the voltage boosting unit, the driving terminal of the second electronic switch is electrically connected with the input terminal of the third electronic switch, the driving terminal of the third electronic switch is electrically connected with the main control unit, and the output terminal of the third electronic switch is grounded.
3. The low current, high voltage pulse generator according to claim 1, wherein said boost unit comprises a transformer, a rectifier diode and a filter capacitor, an input terminal of said transformer is electrically connected to an output terminal of said switching regulator unit, an output terminal of said transformer is connected in series with said rectifier diode and then with said switch bank, and is electrically connected to one terminal of said filter capacitor, and another terminal of said filter capacitor is grounded.
4. The low current, high voltage pulse generator according to claim 1, wherein said keypad further comprises an indicator light.
5. The low current, high voltage pulse generator of claim 1, wherein said control unit comprises a single chip and peripheral circuits.
6. The low-current high-voltage pulse generator according to claim 1, wherein the switching regulator block comprises a chip FP5139 and its peripheral circuits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120610172.6U CN214544259U (en) | 2021-03-25 | 2021-03-25 | Low current high voltage pulse generator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120610172.6U CN214544259U (en) | 2021-03-25 | 2021-03-25 | Low current high voltage pulse generator |
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| CN214544259U true CN214544259U (en) | 2021-10-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114217105A (en) * | 2022-02-22 | 2022-03-22 | 华中科技大学 | An ultra-high-speed pulse current generator with programmable waveform |
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2021
- 2021-03-25 CN CN202120610172.6U patent/CN214544259U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114217105A (en) * | 2022-02-22 | 2022-03-22 | 华中科技大学 | An ultra-high-speed pulse current generator with programmable waveform |
| WO2023159666A1 (en) * | 2022-02-22 | 2023-08-31 | 华中科技大学 | Waveform-programmable ultra-high-speed pulse current generation apparatus |
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