CN112039349A - Intelligent high-frequency high-voltage modular power supply - Google Patents
Intelligent high-frequency high-voltage modular power supply Download PDFInfo
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- CN112039349A CN112039349A CN202010949006.9A CN202010949006A CN112039349A CN 112039349 A CN112039349 A CN 112039349A CN 202010949006 A CN202010949006 A CN 202010949006A CN 112039349 A CN112039349 A CN 112039349A
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- 239000003990 capacitor Substances 0.000 claims description 30
- 230000000087 stabilizing effect Effects 0.000 claims description 17
- 238000010521 absorption reaction Methods 0.000 claims description 6
- 230000003287 optical effect Effects 0.000 claims description 6
- 101100489713 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) GND1 gene Proteins 0.000 claims description 3
- 238000013021 overheating Methods 0.000 claims description 3
- 238000013461 design Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 9
- 239000000428 dust Substances 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 102220492355 2'-5'-oligoadenylate synthase 3_R30A_mutation Human genes 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
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- 239000007858 starting material Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
- H02M5/40—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc
- H02M5/42—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters
- H02M5/44—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac
- H02M5/453—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal
- H02M5/458—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/10—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers
- H02H7/12—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers
- H02H7/1216—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for AC-AC converters
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
- H02M7/5387—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
Abstract
The invention discloses an intelligent high-frequency high-voltage modular power supply which comprises a main circuit, a control circuit, a driving circuit and a protection circuit, wherein the main circuit comprises a filter, a rectifier bridge and an inverter circuit, the input end of the filter is connected with a wiring terminal, the output end of the filter is connected with the input end of the rectifier bridge, and the output end of the rectifier bridge is connected with the inverter circuit. The intelligent high-frequency high-voltage modular power supply adopts a modular design, each module is mutually independent, and can be independently maintained once a fault occurs, so that the normal functions of other parts of circuits are not influenced, and the overall stability of the system is improved.
Description
Technical Field
The invention relates to the technical field of power supplies, in particular to an intelligent high-frequency high-voltage modular power supply.
Background
The high-frequency high-voltage power supply is a high-voltage switching power supply, the switching frequency of the high-frequency high-voltage power supply is about 50kHz, the intermediate frequency of the high-frequency high-voltage power supply is about 2kHz, and the power frequency of the high-frequency high-voltage power supply is 50/60 Hz; the high-frequency high-voltage power supply has the advantages that: the high-frequency high-voltage power supply is widely applied to industrial production equipment, and the dust removal industry also frequently adopts the high-frequency high-voltage power supply as a power supply for controlling the dust removal equipment.
At present, a high-frequency high-voltage power supply used by dust removal equipment is generally an integrated circuit, all functions are integrated in the whole circuit, once a fault occurs, a fault point is difficult to detect, and much inconvenience is brought to maintenance. Therefore, it is desirable to design a power supply with easy maintenance to solve the above problems.
Disclosure of Invention
In order to solve the technical problem, the invention discloses an intelligent high-frequency high-voltage modular power supply, which comprises:
the main circuit comprises a filter, a rectifier bridge and an inverter circuit, wherein the input end of the filter is connected with a wiring terminal, the output end of the filter is connected with the input end of the rectifier bridge, and the output end of the rectifier bridge is connected with the inverter circuit;
the control circuit comprises a control chip, a capacitor CT, a resistor RT and a phase inverter, wherein a 5 th pin of the control chip is connected with the capacitor CT, a 6 th pin of the control chip is connected with the resistor RT, an 11 th pin and a 14 th pin of the control chip are respectively connected with pins B1-B4 of the phase inverter through resistors, and the control chip is connected with the main circuit through a connector P1;
the driving circuit comprises a driving chip, a linear optocoupler, a resistor RJ1, a diode D1, a voltage stabilizing diode DZ1, a voltage stabilizing diode DZ2 and a voltage stabilizing diode DZ3, wherein the linear optocoupler is connected with the 4 th pin and the 8 th pin of the driving chip, the resistor RJ1 is connected with the 5 th pin of the driving chip, the diode D1 is connected with the 1 st pin of the driving chip, the voltage stabilizing diode DZ1 and the voltage stabilizing diode DZ2 are sequentially connected in series with a resistor RJ1 and a ground end GND1, and the driving chip is connected with a main circuit through a connector P1;
the protection circuit comprises an overcurrent protection module, a phase failure protection module and an overheat protection module, and is connected with the main circuit through a connector P1.
Furthermore, the inverter circuit comprises four IGBT modules forming a full-bridge circuit, every two IGBT modules are respectively connected with a absorption capacitor in parallel, and every two IGBT modules are respectively connected with the capacitor plate through a wiring terminal X1 and a wiring terminal X2.
Further, the overcurrent protection module comprises an alternating current transformer TA, a rectifier bridge ZL1, a voltage comparator and a monostable trigger, wherein an output end of the alternating current transformer TA is connected with the rectifier bridge ZL1, an output end of the rectifier bridge ZL1 is connected with the voltage comparator, and an output end of the voltage comparator is connected with the monostable trigger.
Furthermore, the open-phase protection module comprises three protection resistors connected in parallel and an optical coupler PQ1, the three protection resistors are all connected with the optical coupler PQ1, and a plurality of voltage stabilizing diodes and capacitors are connected between the protection resistors and the optical coupler PQ 1.
Further, the overheating protection module is a temperature switch connected with the control chip.
The invention has the beneficial effects that:
the intelligent high-frequency high-voltage modular power supply adopts a modular design, each module is mutually independent, and can be independently maintained once a fault occurs, so that the normal functions of other parts of circuits are not influenced, and the overall stability of the system is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.
FIG. 1 is a schematic diagram of the main circuit of the present invention;
FIG. 2 is a schematic circuit diagram of a capacitor plate according to the present invention;
FIG. 3 is a schematic diagram of the control circuit of the present invention;
FIG. 4 is a schematic circuit diagram of an inverter according to the present invention;
FIG. 5 is a schematic diagram of a driving circuit according to the present invention;
FIG. 6 is a first schematic circuit diagram of the over-current protection module according to the present invention;
FIG. 7 is a schematic diagram of a second schematic circuit diagram of the over-current protection module according to the present invention;
fig. 8 is a schematic circuit diagram of the open-phase protection module according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
In the description of the embodiments, the terms "disposed," "connected," and the like are to be construed broadly unless otherwise explicitly specified or limited. For example, the connection can be fixed, detachable or integrated; can be mechanically or electrically connected; either directly or through an intervening medium, or through internal communication between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, the intelligent high-frequency high-voltage modular power supply of the present invention comprises a main circuit, a control circuit, a driving circuit and a protection circuit, wherein:
the main circuit comprises a filter U1, a rectifier bridge U2 and an inverter circuit, the input end of the filter U1 is connected with a wiring terminal X3, the output end of the filter U1 is connected with the input end of a rectifier bridge U2, and the output end of the rectifier bridge U2 is connected with the inverter circuit.
The power frequency three-phase alternating current is input through a wiring terminal X3, stable three-phase voltage is obtained through a filter U1, and then direct current voltage is obtained through a rectifier bridge U2; then, a fuse R30A is connected to prevent the current from being too high and damaging components in the circuit, thus playing the role of protecting the circuit. And a soft start resistor R1 is connected to serve as a soft starter, and the current is controlled to rise slowly until the current reaches a rated value, so that the purpose of smooth start is achieved, and the impact on a power grid is reduced.
The two ends of the soft start resistor R1 are connected with the normally open point of the time relay JP2, and in a period of time after the start-up, the current passes through the soft start resistor R1, so that the current of the main circuit is reduced, and when the circuit system is slowly stabilized, the time relay JP2 acts to short the soft start resistor R1.
Then the current enters the inverter circuit through the capacitors C1 and C2, and the capacitors C1 and C2 can not only filter the alternating current component of the previous link, but also serve as buffer capacitors to prevent the influence of power grid fluctuation. The two ends of the capacitors C1 and C2 are respectively connected with the voltage equalizing resistors R2 and R3 in parallel, and the voltage equalizing resistors R2 and R3 are used for equalizing the internal resistors of the capacitors C1 and C2, so that the voltage division unevenness of the two capacitors C1 and C2 caused by the unevenness of the internal resistors is prevented.
The inverter circuit consists of IGBT modules Q1, Q2, Q3 and Q4 with self-recovery diodes, is a full-bridge inverter circuit, and control signals of the inverter circuit are obtained by an inverter driving board; two ends of each of the IGBT modules Q1 and Q2 are connected with an absorption capacitor C3 in parallel, two ends of each of the IGBT modules Q3 and Q4 are connected with an absorption capacitor C4 in parallel, and the absorption capacitors C3 and C4 are similar to low-pass filters and can absorb spike voltage and be used for protecting the IGBT modules. The IGBT modules Q1 and Q2 are connected to the capacitor plate through terminals X1, respectively, and the IGBT modules Q3 and Q4 are connected to the capacitor plate through terminals X2, respectively.
As shown in fig. 2, the capacitor plates include multiple sets of capacitors connected in parallel. The inverter circuit charges the capacitor plate through the wiring terminals X1 and X2, the capacitor plate protects a transformer in equipment or a circuit from magnetic bias, and the inverter circuit is connected with the transformer in series.
As shown in fig. 3, the control circuit includes a control chip IC1, a capacitor CT, a resistor RT and an inverter, a 5 th pin of the control chip IC1 is connected to the capacitor CT, a 6 th pin is connected to the resistor RT, an 11 th pin and a 14 th pin of the control chip IC1 are respectively connected to pins B1-B4 of the inverter through resistors R4 and R5, and the control chip IC1 is connected to the main circuit through a connector P1; the control chip IC1 is model SG3525 of silicon general purpose semiconductor.
The SG3525 chip is a PWM control chip and is suitable for occasions with stable power supply systems, infrequent duty ratio and frequency change, no display and communication and other expansion requirements. The duty ratio and the frequency can be adjusted by controlling the adjustment of the input resistor, the output PWM waves are the 13 th pin and the 14 th pin, the phase difference of the PWM wave sent out by the output PWM wave is just half period, the duty ratio is not more than 50%, and the output PWM wave is suitable for the control of the IGBT module.
The frequency of the SG3525 chip is determined by an external capacitor CT connected with a 5 th pin of an internal oscillator and a 6 th pin external resistor RT, the SG3525 chip adjusts the duty ratio by adjusting the input voltage of an 8 th pin, and the frequency can be set according to actual conditions.
As shown in fig. 4, the inverter uses a CD4069 chip manufactured by texas instruments.
As shown in fig. 5, the driving circuit includes a driving chip IC2, a linear optocoupler U3, a resistor RJ1, diodes D1, D2, a zener diode DZ1, a zener diode DZ2, and a zener diode DZ 3; a linear optocoupler U3 is connected with a pin 4 and a pin 8 of a driving chip IC2, a resistor RJ1 is connected with a pin 5 of the driving chip IC2, a diode D1 is connected with a pin 1 of the driving chip IC2, a voltage stabilizing diode DZ1 and a voltage stabilizing diode DZ2 are sequentially connected in series with the resistor RJ1 and a ground end GND1, and the driving chip IC2 is connected with a main circuit through a connector P1; the drive chip IC2 is a M57962AL type IGBT special drive chip produced by Mitsubishi corporation, and the surge absorption circuit is C type, so that the turn-off surge suppression effect is good.
The M57962AL chip has a protection function, when abnormality occurs, the level of the 8 th pin becomes low, and a fault signal is led out to a control system through a linear optocoupler U1 for processing; the linear optocoupler U3 can play a photoelectric isolation function, and simultaneously, a light-emitting diode L1 is used for leading out the signal, so that the signal can be directly displayed and is convenient to observe.
The diodes D1 and D2 detect the voltage of the end DE of the IGBT module, the size of the resistor RJ1 controls the signal switching speed of the IGBT module, the voltage stabilizing diodes DZ1 and DZ2 control the driving voltage to be 15V-10V for stabilizing, and the voltage stabilizing diode DZ3 can prevent the M5796AL chip from being damaged after the D1 and the D2 are broken down.
The protection circuit comprises an overcurrent protection module, a phase failure protection module and an overheat protection module, and is connected with the main circuit through a connector P1. Wherein:
as shown in fig. 6-7, the overcurrent protection module includes an ac transformer TA, a rectifier bridge ZL1, a voltage comparator IC3, and a monostable flip-flop IC 4; the output end of the alternating current transformer TA is connected with a rectifier bridge ZL1 to obtain direct current voltage; the output terminal of the rectifier bridge ZL1 is connected to a voltage comparator IC3 for comparing with a variable set voltage, and the output terminal of the voltage comparator IC3 is connected to a monostable flip-flop IC 4.
When the voltage exceeds a given voltage, the voltage comparator IC3 outputs a low level signal, the output end of the voltage comparator IC3 is connected with the input end of a monostable trigger IC4 formed by an NE555 chip, and when the input of a 2 nd pin of the monostable trigger IC4 is high level, the output of a 3 rd pin is low level; when the 2 nd pin inputs a low level, the 3 rd pin outputs a high level signal with a duration, and the delay time can be adjusted through a potentiometer according to actual conditions. Therefore, when the output current is too large, pin 3 of the monostable flip-flop IC4 will output a high level, turning off the control chip IC1, and delaying for a while to prevent the IGBT module from oscillating between on and off and being damaged.
For the control chip IC1, logic operation can be performed through the logic chips IC5 and IC6, when any fault occurs, the off level is output to the off control pin of the control chip IC1, and at the same time, the output level controls the corresponding relay to control the fault indicator light and output the switching value to communicate with other devices such as PLC. The logic chips IC5 and IC6 are made of CD4069, CD4071, etc. manufactured by Texas instruments.
As shown in fig. 8, the open-phase protection module includes three protection resistors R6, R7, R8 and an optocoupler PQ1 connected in parallel, the three protection resistors R6, R7, and R8 are all connected with the optocoupler PQ1, and a plurality of zener diodes DZ4, DZ5 and capacitors C7 and C8 are connected between the protection resistors R6, R7, R8 and the optocoupler PQ 1.
The open-phase protection module respectively introduces three-phase four-wire system input voltage into an input end of the open-phase protection module through a connecting terminal QX1, and the three-phase four-wire system input voltage passes through three resistors R6, R7 and R8 with the resistance value of 60 k; when the three voltages are unbalanced, the voltage of the input end of the optocoupler PQ1 is increased, a phototriode in the optocoupler PQ1 is conducted, and a high level is connected to the control chip IC1 for processing.
The overheating protection module is a temperature switch connected with the control chip IC1, the temperature switch is a normally open or normally closed contact, and the operating temperature is 75 ℃. At one off high level of the temperature switch, the other end is connected with the control chip IC 1.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein. In addition, the technical solutions between the various embodiments can be combined with each other, but must be based on the realization of those skilled in the art; where combinations of features are mutually inconsistent or impractical, such combinations should not be considered as being absent and not within the scope of the claimed invention.
Claims (5)
1. An intelligent high-frequency high-voltage modular power supply, comprising:
the main circuit comprises a filter, a rectifier bridge and an inverter circuit, wherein the input end of the filter is connected with a wiring terminal, the output end of the filter is connected with the input end of the rectifier bridge, and the output end of the rectifier bridge is connected with the inverter circuit;
the control circuit comprises a control chip, a capacitor CT, a resistor RT and a phase inverter, wherein a 5 th pin of the control chip is connected with the capacitor CT, a 6 th pin of the control chip is connected with the resistor RT, an 11 th pin and a 14 th pin of the control chip are respectively connected with pins B1-B4 of the phase inverter through resistors, and the control chip is connected with the main circuit through a connector P1;
the driving circuit comprises a driving chip, a linear optocoupler, a resistor RJ1, a diode D1, a voltage stabilizing diode DZ1, a voltage stabilizing diode DZ2 and a voltage stabilizing diode DZ3, wherein the linear optocoupler is connected with the 4 th pin and the 8 th pin of the driving chip, the resistor RJ1 is connected with the 5 th pin of the driving chip, the diode D1 is connected with the 1 st pin of the driving chip, the voltage stabilizing diode DZ1 and the voltage stabilizing diode DZ2 are sequentially connected in series with a resistor RJ1 and a ground end GND1, and the driving chip is connected with a main circuit through a connector P1;
the protection circuit comprises an overcurrent protection module, a phase failure protection module and an overheat protection module, and is connected with the main circuit through a connector P1.
2. The intelligent high-frequency high-voltage modular power supply of claim 1, wherein: the inverter circuit comprises four IGBT modules forming a full-bridge circuit, every two IGBT modules are respectively connected in parallel with an absorption capacitor, and every two IGBT modules are connected with a capacitor plate through a wiring terminal X1 and a wiring terminal X2.
3. The intelligent high-frequency high-voltage modular power supply of claim 1, wherein: the overcurrent protection module comprises an alternating current transformer TA, a rectifier bridge ZL1, a voltage comparator and a monostable trigger, wherein the output end of the alternating current transformer TA is connected with the rectifier bridge ZL1, the output end of the rectifier bridge ZL1 is connected with the voltage comparator, and the output end of the voltage comparator is connected with the monostable trigger.
4. The intelligent high-frequency high-voltage modular power supply of claim 1, wherein: the open-phase protection module comprises three protection resistors connected in parallel and an optical coupler PQ1, the three protection resistors are connected with the optical coupler PQ1, and a plurality of voltage stabilizing diodes and capacitors are connected between the protection resistors and the optical coupler PQ 1.
5. The intelligent high-frequency high-voltage modular power supply of claim 1, wherein: the overheating protection module is a temperature switch connected with the control chip.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116430129A (en) * | 2023-06-15 | 2023-07-14 | 创辉科技有限公司 | Electrical safety detection system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103586564A (en) * | 2013-10-28 | 2014-02-19 | 广东电网公司电力科学研究院 | MIG welding power supply system based on STM32 |
| CN103692056A (en) * | 2013-12-19 | 2014-04-02 | 华南理工大学 | Multifunctional digital waveform control arc-welding inverter power supply |
| CN105406569A (en) * | 2015-12-25 | 2016-03-16 | 谢镕安 | Intelligent charging system of super-capacitor blade electric vehicle |
| CN110474598A (en) * | 2019-08-22 | 2019-11-19 | 广东职业技术学院 | A kind of SPWM frequency conversion speed-adjusting system and its control method based on FPGA |
| CN110467073A (en) * | 2019-08-22 | 2019-11-19 | 广东职业技术学院 | A kind of mine hoist non-muscular energy braking system and its control method |
| CN209731129U (en) * | 2019-08-22 | 2019-12-03 | 广东职业技术学院 | A kind of SPWM frequency conversion speed-adjusting system based on FPGA |
| CN111478614A (en) * | 2020-04-20 | 2020-07-31 | 四川泛华航空仪表电器有限公司 | Low electromagnetic interference high reliable jet ignition power supply |
-
2020
- 2020-09-10 CN CN202010949006.9A patent/CN112039349A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103586564A (en) * | 2013-10-28 | 2014-02-19 | 广东电网公司电力科学研究院 | MIG welding power supply system based on STM32 |
| CN103692056A (en) * | 2013-12-19 | 2014-04-02 | 华南理工大学 | Multifunctional digital waveform control arc-welding inverter power supply |
| CN105406569A (en) * | 2015-12-25 | 2016-03-16 | 谢镕安 | Intelligent charging system of super-capacitor blade electric vehicle |
| CN110474598A (en) * | 2019-08-22 | 2019-11-19 | 广东职业技术学院 | A kind of SPWM frequency conversion speed-adjusting system and its control method based on FPGA |
| CN110467073A (en) * | 2019-08-22 | 2019-11-19 | 广东职业技术学院 | A kind of mine hoist non-muscular energy braking system and its control method |
| CN209731129U (en) * | 2019-08-22 | 2019-12-03 | 广东职业技术学院 | A kind of SPWM frequency conversion speed-adjusting system based on FPGA |
| CN111478614A (en) * | 2020-04-20 | 2020-07-31 | 四川泛华航空仪表电器有限公司 | Low electromagnetic interference high reliable jet ignition power supply |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116430129A (en) * | 2023-06-15 | 2023-07-14 | 创辉科技有限公司 | Electrical safety detection system |
| CN116430129B (en) * | 2023-06-15 | 2023-09-08 | 创辉科技有限公司 | Electrical safety detection system |
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