CN112039328A - Control device for quickly switching off power-on delay power-down based on capacitance characteristics - Google Patents
Control device for quickly switching off power-on delay power-down based on capacitance characteristics Download PDFInfo
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- CN112039328A CN112039328A CN202010930949.7A CN202010930949A CN112039328A CN 112039328 A CN112039328 A CN 112039328A CN 202010930949 A CN202010930949 A CN 202010930949A CN 112039328 A CN112039328 A CN 112039328A
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- 239000003990 capacitor Substances 0.000 claims abstract description 103
- 238000007599 discharging Methods 0.000 claims abstract description 18
- 230000005669 field effect Effects 0.000 claims description 20
- 238000011084 recovery Methods 0.000 claims description 9
- 230000000087 stabilizing effect Effects 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000004073 vulcanization Methods 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
- H02M1/00—Details of apparatus for conversion
- H02M1/36—Means for starting or stopping 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
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
-
- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
- H02M1/322—Means for rapidly discharging a capacitor of the converter for protecting electrical components or for preventing electrical shock
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Abstract
The invention discloses a control device for quickly switching off power-on delay and power-off based on capacitance characteristics, which comprises a main power supply, an overcurrent protection circuit, a switching circuit, a main capacitor, a charging and discharging circuit for charging or discharging the main capacitor, a switch driving circuit for controlling the switching circuit to be in one of a conducting state and a cut-off state according to a voltage signal of the main capacitor, and an output circuit for outputting pure voltage, wherein the output end of the main power supply is connected with the input end of the overcurrent protection circuit, the switching circuit, the charging and discharging circuit, the switch driving circuit and the output circuit are all connected with the output end of the overcurrent protection circuit, and the switch driving circuit is connected with the charging and discharging circuit through the main capacitor; in the invention, a control switch of a main circuit is opened by controlled delay time obtained by controlling the charging and discharging time of a charging and discharging circuit to a main capacitor, so that the delay of an output power supply of the main circuit is realized; when the power is off, the main capacitor is quickly short-circuited and discharged to realize the quick turn-off of the output power supply of the main circuit.
Description
Technical Field
The invention relates to the field of electronic circuits, in particular to a control device for quickly switching off power-on delay and power-down based on capacitance characteristics.
Background
At present, the electronic circuit field is very widely applied to the control of power-on delayed start and power-off rapid turn-off of power supplies, and in the prior art, delay control is generally realized by a delay relay, a delay switch or a single chip microcomputer delay and the like. However, the solutions have the problems of high cost and untimely quick turn-off. Meanwhile, the application range of the universal time delay and quick-break control device is quite wide, and how to design and produce the device which is low in manufacturing cost and can be quickly turned off in time becomes a technical problem which needs to be solved urgently in the field.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a control device for quickly switching off power-on delay and power-off based on capacitance characteristics, which can solve the problems of high production cost and untimely quick switching-off of the traditional delay and quick switching-off control device.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a control device for quickly switching off power-on and power-off based on capacitance characteristics comprises a main power supply for externally connecting an external power supply, an overcurrent protection circuit for performing overcurrent protection on the main power supply, a switch circuit for controlling the main power supply to be in one of a conducting state and a stopping state, a main capacitor, a charge and discharge circuit for charging or discharging the main capacitor, a switch driving circuit for controlling the switch circuit to be in one of the conducting state and the stopping state according to a voltage signal of the main capacitor, and an output circuit for outputting pure voltage, wherein the output end of the main power supply is connected with the input end of the overcurrent protection circuit, the switch circuit, the charge and discharge circuit, the switch driving circuit and the output circuit are all connected with the output end of the overcurrent protection circuit, and the switch driving circuit is connected with the charge and discharge circuit through the main capacitor.
Preferably, the main power supply includes an inductor L1, a polar capacitor C2, and a capacitor C3, the input end of the overcurrent protection circuit, the anode of the polar capacitor C2, and one end of the capacitor C3 are all connected to one end of the inductor L1, the other end of the inductor L1 is connected to an external power supply, and the cathode of the polar capacitor C2 and the other end of the capacitor C3 are both grounded.
Preferably, the overcurrent protection circuit comprises a fuse F1 and a capacitor C4, one end of the fuse F1 and one end of the capacitor C4 are both connected with the output end of the main power supply, and the other end of the capacitor C4, the input end of the switch circuit and the input end of the charging and discharging circuit are all connected with the other end of the fuse F1.
Preferably, the fuse F1 is a self-recovery fuse F1.
Preferably, the charge and discharge circuit comprises a resistor R3, a resistor R6, a diode D1 and a diode D2, the output end of the overcurrent protection circuit, the cathode of the diode D1, the cathode of the diode D2 and the switch circuit are all connected with one end of a resistor R3, the anode of the diode D1, the anode of the diode D2, one end of the resistor R6 and the main capacitor are all connected with the other end of the resistor R3, and the other end of the resistor R6 is grounded.
Preferably, the main capacitor includes an active capacitor C1, the anode of the diode D1, the anode of the diode D2, one end of the resistor R6, the other end of the resistor R3, and the switch driving circuit are all connected to the anode of the active capacitor C1, and the cathode of the active capacitor C1 is grounded.
Preferably, the switch driving circuit includes a transistor Q2, a transistor Q3, a resistor R2, a resistor R7, and a zener diode DZ1, the output end of the over-current protection circuit and the switch circuit are both connected to one end of the resistor R2, the other end of the resistor R2 is connected to a collector of the transistor Q2, a base of the transistor Q2 is connected to the main capacitor, one end of the resistor R7 and a cathode of the zener diode DZ1 are both connected to an emitter of the transistor Q2, an anode of the zener diode DZ1 is connected to a base of the transistor Q3, a collector of the transistor Q3 is connected to the switch circuit, and an emitter of the transistor Q3 and the other end of the resistor R7 are grounded.
Preferably, the switch circuit includes a resistor R4, a resistor R5, and a field effect transistor Q1, one end of the resistor R4, an output end of the overcurrent protection circuit, and the switch driving circuit are all connected to a drain of the field effect transistor Q1, the other end of the resistor R4 and one end of the resistor R5 are all connected to a gate of the field effect transistor Q1, a source of the field effect transistor Q1 is connected to the output circuit, and the other end of the resistor R5 is connected to the switch driving circuit.
Preferably, the output circuit includes an active capacitance C5 and a capacitance C6, the positive electrode of the active capacitance C5 and one end of the capacitance C6 are both connected to the switch circuit, and the negative electrode of the active capacitance C5 and the other end of the capacitance C6 are both grounded.
Compared with the prior art, the invention has the beneficial effects that: the time of charging and discharging the main capacitor by the charging and discharging circuit is controlled to obtain a controlled delay time to open a control switch of the main circuit, so that the delay of the output power supply of the main circuit is realized; when the power is off, the main capacitor is quickly short-circuited and discharged to realize the quick turn-off of the output power supply of the main circuit. Meanwhile, the main time-delay and bleeder devices in the invention are common capacitors and diodes, the control part is composed of passive resistors, capacitors, triodes and the like, the control switch adopts a common low-speed field effect transistor, and further, different field effect transistors can be flexibly selected according to the controlled load power, wherein the main passive devices of the circuit ensure the stability of the work, and the conventional materials and the optional control switch can meet the requirements and save the cost to the maximum extent.
Drawings
Fig. 1 is a schematic structural diagram of a control device for power-on delay and power-down fast turn-off based on capacitance characteristics in the present invention.
Fig. 2 is a circuit diagram of the control device for power-on delay and power-down fast turn-off based on the capacitance characteristic.
Fig. 3 is a circuit diagram of a main power supply described in the present invention.
Fig. 4 is a circuit diagram of the overcurrent protection circuit according to the present invention.
Fig. 5 is a circuit diagram of the charge and discharge circuit and the main capacitor according to the present invention.
Fig. 6 is a circuit diagram of a switch driving circuit according to the present invention.
Fig. 7 is a circuit diagram of a switching circuit according to the present invention.
Fig. 8 is a circuit diagram of an output circuit described in the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected 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.
The invention will be further described with reference to the accompanying drawings and the detailed description below:
in the invention, the self-recovery fuse is an overcurrent electronic protection element and is formed by doping a conductive particle material into a high-molecular organic polymer under the conditions of high pressure, high temperature and vulcanization reaction and processing through a special process. The traditional fuse overcurrent protection can only protect once and is blown to be replaced, and the self-recovery fuse has the dual functions of overcurrent and overheat protection and automatic recovery. The electrode capacitor is a capacitor like an electrolytic capacitor, two electrodes are respectively formed by an aluminum foil of an anode and electrolyte of a cathode, the electrodes cannot be connected in a wrong way, and a layer of aluminum oxide film generated on the aluminum foil of the anode is used as a dielectric medium.
As shown in fig. 1-8, a control device for power-on delay and power-down fast turn-off based on capacitance characteristics comprises a main power supply for externally connecting an external power supply, an overcurrent protection circuit for performing overcurrent protection on the main power supply, a switch circuit for controlling the main power supply to be in one of on and off states, a main capacitor, a charge and discharge circuit for charging or discharging the main capacitor, a switch driving circuit for controlling the switch circuit to be in one of on and off states according to a voltage signal of the main capacitor, and an output circuit for outputting pure voltage, the output end of the main power supply is connected with the input end of the overcurrent protection circuit, the switch circuit, the charge and discharge circuit, the switch driving circuit and the output circuit are all connected with the output end of the overcurrent protection circuit, and the switch driving circuit is connected with the charge and discharge circuit through the main capacitor.
Specifically, the main power supply comprises an inductor L1, a polar capacitor C2 and a capacitor C3, the overcurrent protection circuit comprises a fuse F1 and a capacitor C4, preferably, the fuse F1 is a self-recovery fuse F1, the charging and discharging circuit comprises a resistor R3, a resistor R6, a diode D1 and a diode D2, the main capacitor comprises a polar capacitor C1, the switch driving circuit comprises a triode Q2, a triode Q3, a resistor R2, a resistor R7 and a zener diode DZ1, the switch circuit comprises a resistor R4, a resistor R5 and a field effect transistor Q1, and the output circuit comprises a polar capacitor C5 and a capacitor C6. In this embodiment, as shown in fig. 4, one end of the self-recovery fuse F1, one end of the capacitor C4, the anode of the polar capacitor C2, and one end of the capacitor C3 are all connected to one end of an inductor L1, the other end of the inductor L1 is connected to an external power source, the other end of the self-recovery fuse F1, the other end of the capacitor C4, the cathode of a diode D1, the cathode of a diode D2, one end of a resistor R3, one end of a resistor R2, and one end of a resistor R4 are all connected to a drain of a fet Q1, the anode of the diode D1, the anode of the diode D2, the base of a transistor Q2, one end of the resistor R2, and the anode of the polar capacitor C2 are all connected to the other end of a resistor R2, the collector of the transistor Q2 is connected to the other end of the resistor R2, the one end of the resistor R2 and the cathode of a zener diode DZ 2 are all connected to an emitter of the transistor Q2, and the gate of the resistor R2 are connected to the other end, the other end of the resistor R5 is connected with a collector of a triode Q3, the anode of the capacitor C5 and one end of the capacitor C6 are both connected with the source of the field effect transistor Q1, and the cathode of the capacitor C2, the other end of the capacitor C3, the other end of the resistor R6, the cathode of the capacitor C1, the other end of the resistor R7, the emitter of the triode Q3, the cathode of the capacitor C5 and the other end of the capacitor C6 are all grounded.
In this embodiment, 3-100V dc voltage is input to the main power supply through an external power supply, the inductor L1, the capacitor C2, and the capacitor C3 form an LC filter, the input power supply is filtered and purified, and then the current flowing through the main power supply is limited through an overcurrent protection circuit formed by the self-recovery fuse F1 and the capacitor C4, wherein the capacitor C4 plays a role in pulse suppression. When current enters the charging and discharging circuit, the resistor R3 and the resistor R6 divide the voltage input by the main power supply, then the capacitor C1 with the electrodes is charged, and meanwhile, the resistor R3 plays a role in charging and current limiting, so that the resistor R3 determines the time required by the full charge of the capacitor C1, the charging time can be adjusted by adjusting the value of the resistor R3, and the resistor R3 can be set to be an adjustable resistor or a slide rheostat to adjust the charging time. In this embodiment, the active capacitance C1 is a main capacitance for charge delay, and the value of the active capacitance C1 also affects the charge time, so the active capacitance C1 generally takes a value of 220uF, further, the diode D1 and the diode D2 form a discharge circuit of the main capacitance, and in the power-on stage, the positive voltages of the diode D1 and the diode D2 are lower than the negative voltage, so the diode D1 and the diode D2 are not conductive. In the power-down stage, the voltages of the positive electrodes of the diode D1 and the diode D2 are higher than the voltage of the negative electrode, the diode D1 and the diode D2 are conducted, the active capacitor C1 is caused to discharge the main power supply, the voltage of the active capacitor C1 is rapidly reduced, and the rapid discharge of the main capacitor is realized. In this embodiment, the diode D1 and the diode D2 are connected in parallel to minimize the impedance of the discharge loop and the heat generation of the diode during discharge (discharging the active capacitor C1 can quickly turn off the main power supply, and ensure that no residual electricity exists in the main capacitor during the next power-on of the circuit, and the delay time of the circuit is not affected); preferably, the resistor R2, the resistor R7, the resistor R4, the resistor R5, the transistor Q2, the transistor Q3, and the diode DZ1 form a switch driving circuit and a switch circuit, for driving the main power supply to be in one of an on state and an off state,
after the voltage on the main capacitor is higher than 0.7V, the triode Q2 is driven to be conducted, so that the voltage on the resistor R7 rises to make the voltage on the zener diode DZ1 break down, the triode Q3 is conducted, the voltage of the collector of the conducted triode Q3 is changed from high voltage to low voltage, the grid voltage of a field effect transistor Q1 of the switching circuit is pulled down, and the field effect transistor Q1 is conducted, so that the main power supply voltage is turned on and output. When the input voltage of the main power supply is powered off and the voltage drops, the voltage of the negative electrode of the diode D1 and the diode D2 is lower than that of the positive electrode, the diode D1 and the diode D2 start to be conducted, the conducted diode D1 and the diode D2 supply power to the main power supply to the voltage stored on the main capacitor, the voltage of the polar capacitor C1 is caused to drop rapidly, when the voltage of the polar capacitor C1 drops to be lower than 0.7V, the triode Q2 is cut off, the triode Q3 is also cut off, the voltage of the grid electrode of the field effect transistor Q1 is pulled high, the field effect transistor Q1 is cut off, and the output of the. The whole circuit realizes the delayed output of the main power supply by slowly charging the main capacitor, and realizes the quick-closing output of the main power supply by quickly discharging the active capacitor C1. The active capacitance C5 and the capacitance C6 are decoupling capacitors of the output voltage, and the purity of the output voltage can be ensured.
The working process of the embodiment is as follows: when the main power supply is powered on, the output circuit does not output voltage because the field effect transistor Q1 is not conducted. The resistor R3 and the resistor R6 are electrified from a filtered and overcurrent-protected main power supply to charge a main capacitor (an active capacitor C1), and the driving circuit is controlled to drive the field effect transistor Q1 to be conducted when the voltage on the main capacitor slowly rises to a high voltage value, so that the voltage output of the output circuit is realized at the moment; when the main power supply is powered off, the output voltage cannot disappear immediately due to the existence of the inductor and the capacitor in the circuit, but the voltage of the main capacitor is lower than 0.7V after the main capacitor is discharged quickly, and the extremely low voltage cannot control the conduction of the field-effect tube Q1 in the switch circuit any more, so that the field-effect tube Q1 is cut off quickly, the voltage of the output circuit is closed, and the preparation is also made for the next circuit power-on.
Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes should fall within the scope of the claims of the present invention.
Claims (9)
1. The utility model provides a power-on time delay falls controlling means that power down turns off fast based on capacitive characteristic which characterized in that: the overcurrent protection circuit comprises a main power supply for externally connecting an external power supply, an overcurrent protection circuit for performing overcurrent protection on the main power supply, a switch circuit for controlling the main power supply to be in one of a conducting state and a cut-off state, a main capacitor, a charge and discharge circuit for charging or discharging the main capacitor, a switch driving circuit for controlling the switch circuit to be in one of a conducting state and a cut-off state according to a voltage signal of the main capacitor, and an output circuit for outputting pure voltage, wherein the output end of the main power supply is connected with the input end of the overcurrent protection circuit, and the switch circuit, the charge and discharge circuit, the switch driving circuit and the output circuit are all connected with the output end of the overcurrent protection circuit and are connected with the charge and discharge circuit through the main.
2. The control device for power-on delay power-down fast turn-off based on the capacitive characteristic as claimed in claim 1, wherein: the main power supply comprises an inductor L1, an active capacitor C2 and a capacitor C3, the input end of the overcurrent protection circuit, the anode of the active capacitor C2 and one end of the capacitor C3 are connected with one end of an inductor L1, the other end of the inductor L1 is connected with an external power supply, and the cathode of the active capacitor C2 and the other end of the capacitor C3 are grounded.
3. The control device for power-on delay power-down fast turn-off based on the capacitive characteristic as claimed in claim 1, wherein: the overcurrent protection circuit comprises a fuse F1 and a capacitor C4, one end of the fuse F1 and one end of the capacitor C4 are both connected with the output end of a main power supply, and the other end of the fuse F1, the input end of the switch circuit and the input end of the charging and discharging circuit are both connected with the other end of the fuse C4.
4. The control device for power-on delay power-down fast turn-off based on the capacitive characteristic as claimed in claim 3, wherein: the fuse F1 is a self-recovery fuse F1.
5. The control device for power-on delay power-down fast turn-off based on the capacitive characteristic as claimed in claim 1, wherein: the charging and discharging circuit comprises a resistor R3, a resistor R6, a diode D1 and a diode D2, the output end of the overcurrent protection circuit, the cathode of the diode D1, the cathode of the diode D2 and the switch circuit are all connected with one end of a resistor R3, the anode of the diode D1, the anode of the diode D2, one end of the resistor R6 and the main capacitor are all connected with the other end of the resistor R3, and the other end of the resistor R6 is grounded.
6. The control device for power-on delay power-down fast turn-off based on the capacitive characteristic as claimed in claim 5, wherein: the main capacitor comprises an active capacitor C1, the anode of the diode D1, the anode of the diode D2, one end of the resistor R6, the other end of the resistor R3 and the switch driving circuit are all connected with the anode of the active capacitor C1, and the cathode of the active capacitor C1 is grounded.
7. The control device for power-on delay power-down fast turn-off based on the capacitive characteristic as claimed in claim 1, wherein: the switch driving circuit comprises a triode Q2, a triode Q3, a resistor R2, a resistor R7 and a voltage stabilizing diode DZ1, wherein the output end of the overcurrent protection circuit and the switch circuit are both connected with one end of a resistor R2, the other end of the resistor R2 is connected with the collector of the triode Q2, the base of the triode Q2 is connected with a main capacitor, one end of a resistor R7 and the negative electrode of the voltage stabilizing diode DZ1 are both connected with the emitter of the triode Q2, the positive electrode of the voltage stabilizing diode DZ1 is connected with the base of the triode Q3, the collector of the triode Q3 is connected with the switch circuit, and the emitter of the triode Q3 and the other end of the resistor R7 are grounded.
8. The control device for power-on delay power-down fast turn-off based on the capacitive characteristic as claimed in claim 1, wherein: the switch circuit comprises a resistor R4, a resistor R5 and a field-effect transistor Q1, one end of the resistor R4, the output end of the overcurrent protection circuit and the switch driving circuit are all connected with the drain electrode of the field-effect transistor Q1, the other end of the resistor R4 and one end of the resistor R5 are all connected with the gate electrode of the field-effect transistor Q1, the source electrode of the field-effect transistor Q1 is connected with the output circuit, and the other end of the resistor R5 is connected with the switch driving circuit.
9. The control device for power-on delay power-down fast turn-off based on the capacitive characteristic as claimed in claim 1, wherein: the output circuit comprises an active capacitor C5 and a capacitor C6, wherein the anode of the active capacitor C5 and one end of the capacitor C6 are both connected with the switch circuit, and the cathode of the active capacitor C5 and the other end of the capacitor C6 are both grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010930949.7A CN112039328A (en) | 2020-09-07 | 2020-09-07 | Control device for quickly switching off power-on delay power-down based on capacitance characteristics |
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| CN202010930949.7A CN112039328A (en) | 2020-09-07 | 2020-09-07 | Control device for quickly switching off power-on delay power-down based on capacitance characteristics |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113346729A (en) * | 2021-06-10 | 2021-09-03 | 西安微电子技术研究所 | Circuit for controlling rising time of output voltage of switching power supply |
| CN113432184A (en) * | 2021-08-03 | 2021-09-24 | 山东佐耀智能装备股份有限公司 | Energy-saving system for peak-shifting operation of central air conditioner based on phase-change material energy storage |
| CN114123443A (en) * | 2021-09-29 | 2022-03-01 | 山东盖特航空科技有限公司 | Power supply protection circuit and power-off delay power supply system and method for flight parameter equipment |
-
2020
- 2020-09-07 CN CN202010930949.7A patent/CN112039328A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113346729A (en) * | 2021-06-10 | 2021-09-03 | 西安微电子技术研究所 | Circuit for controlling rising time of output voltage of switching power supply |
| CN113346729B (en) * | 2021-06-10 | 2023-05-12 | 西安微电子技术研究所 | Circuit for controlling rising time of output voltage of switching power supply |
| CN113432184A (en) * | 2021-08-03 | 2021-09-24 | 山东佐耀智能装备股份有限公司 | Energy-saving system for peak-shifting operation of central air conditioner based on phase-change material energy storage |
| CN114123443A (en) * | 2021-09-29 | 2022-03-01 | 山东盖特航空科技有限公司 | Power supply protection circuit and power-off delay power supply system and method for flight parameter equipment |
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Address after: No. 56 Nanli East Road, Shiqi Town, Panyu District, Guangzhou City, Guangdong Province, 510000 Applicant after: Guangdong Baolun Electronics Co.,Ltd. Address before: 510000 Building 1, industrial zone B, Zhongcun street, Panyu District, Guangzhou City, Guangdong Province Applicant before: GUANGZHOU ITC ELECTRONIC TECHNOLOGY Co.,Ltd. |
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