CN216751302U - Interactive double-direct-current power supply switching device - Google Patents

Interactive double-direct-current power supply switching device Download PDF

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CN216751302U
CN216751302U CN202123203587.0U CN202123203587U CN216751302U CN 216751302 U CN216751302 U CN 216751302U CN 202123203587 U CN202123203587 U CN 202123203587U CN 216751302 U CN216751302 U CN 216751302U
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power supply
module
voltage
diode
resistor
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白霖
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Shenzhen Juding Electronic Co ltd
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Shenzhen Juding Electronic Co ltd
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Abstract

The utility model discloses a two DC power supply auto-change over device of interactive relates to the interactive power field, and this two DC power supply auto-change over device of interactive includes: the commercial power supply module is used for supplying 220V alternating current; the voltage reduction, rectification and filtering module is used for converting 220V alternating current into direct current; the first power supply module is used as a first power supply for supplying power; the voltage detection module is used for detecting whether the output voltage of the first power supply module is under-voltage or not and driving the standby power supply module when the output voltage is under-voltage; the power-off control module is used for driving the standby power supply module when the voltage reduction rectification filter module does not output voltage; the standby power supply charging module is used for supplying voltage to the standby power supply module; compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses when first power is normal, launch first mains operated to charge to the second power, when first power failure, launch the second power automatically and supply power, ensure that the consumer works with electricity always.

Description

Interactive double-direct-current power supply switching device
Technical Field
The utility model relates to an interactive power field specifically is a two DC power supply auto-change over device of interactive.
Background
The switching power supply is a dynamic power supply, also called a switching power supply, namely when the machine and other parts need to use electricity, the power supply is immediately carried out after receiving signals, and when the machine does not use electricity, the power supply is immediately stopped. This is a kind of high-frequency electric energy conversion device, which is a kind of power supply. The function is to convert a level voltage into a voltage or current required by the user terminal through different types of architectures.
The interactive power supply in the current market is lack of a standby power supply, when only one power supply fails, the work of electric equipment is doubtful, the expected work is difficult to complete, and improvement is needed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a two DC power supply auto-change over device of interactive to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
an interactive dual dc power switching apparatus, comprising:
the commercial power supply module is used for supplying 220V alternating current;
the voltage reduction rectification filtering module is used for converting 220V alternating current into direct current;
the first power supply module is used as a first power supply for supplying power;
the voltage detection module is used for detecting whether the output voltage of the first power supply module is under-voltage or not and driving the standby power supply module when the output voltage is under-voltage;
the power-off control module is used for driving the standby power supply module when the voltage reduction rectification filter module does not output voltage;
the standby power supply charging module is used for supplying voltage to the standby power supply module;
the standby power supply module is used as a second power supply for supplying power when the power is cut off and under voltage;
the commercial power supply module is connected with the voltage-reducing rectifying and filtering module, the voltage-reducing rectifying and filtering module is connected with the first power supply module, the power-off control module and the standby power supply charging module, the power-off control module is connected with the standby power supply module, the first power supply module is connected with the voltage detection module and the standby power supply charging module, the voltage detection module is connected with the standby power supply module, and the standby power supply charging module is connected with the standby power supply module.
As a further aspect of the present invention: the first power supply module comprises a voltage stabilizer U1, a diode D1 and a resistor R2, wherein the input end of the voltage stabilizer U1 is connected with the voltage reduction rectification filter module, the negative end of a connection circuit of the voltage stabilizer U1 is connected with the negative electrode of the circuit, the output end of the voltage stabilizer U1 is connected with the positive electrode of the diode D1, the negative electrode of the diode D1 is connected with the resistor R2, and the other end of the resistor R2 is connected with the standby power supply charging module.
As a further aspect of the present invention: the voltage detection module comprises a potentiometer RP1, a resistor R3, a resistor R4, a diode D4, a capacitor C1 and an amplifier U2, one end of the potentiometer RP1 is connected with the resistor R4 and the first power supply module, the other end of the potentiometer RP1 is connected with the resistor R3 and the inverting end of the amplifier U2, the other end of the resistor R3 is connected with the negative electrode of a circuit, the other end of the resistor R4 is connected with the negative electrode of the diode D4, the same-phase end of the capacitor C1 and the inverting end of the amplifier U2, the other end of the capacitor C1 is connected with the negative electrode of the circuit, the positive electrode of the diode D4 is connected with the negative electrode of the circuit, and the output end of the amplifier U2 is connected with the standby power supply module.
As a further aspect of the present invention: the power-off control module comprises a diode D2, a diode D3 and a relay J1, wherein the anode of the diode D2 is connected with the buck rectifying and filtering module, the cathode of the diode D2 is connected with the cathode of the diode D3 and the relay J1, and the anode of the diode D3 is connected with the other end of the relay J1 and the cathode of the circuit.
As a further aspect of the present invention: the standby power supply charging module comprises a resistor R1 and a triode V1, one end of the resistor R1 is connected with the voltage-reducing rectification filtering module, the other end of the resistor R1 is connected with a collector of the triode V1, the base of the triode V1 is connected with the first power supply module, and the emitter of the triode V1 is connected with the standby power supply module.
As the utility model discloses further scheme again: the standby power supply module comprises a battery E1, a triode V2 and a switch S1, wherein the negative electrode of the battery E1 is connected, the positive electrode of the battery E1 is connected with the collector of the triode V2, the switch S1 and the standby power supply charging module, and the base electrode of the triode V2 is connected with the voltage detection module.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses when first power is normal, launch first mains operated to charge to the second power, when first power failure, launch the second power automatically and supply power, ensure that the consumer works with electricity always.
Drawings
Fig. 1 is a schematic diagram of an interactive dual dc power switching apparatus.
Fig. 2 is a circuit diagram of an interactive dual dc power switching device.
Fig. 3 is an internal structural view of the diode.
Detailed Description
The technical solution 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 some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.
Referring to fig. 1, an interactive dual dc power switching apparatus includes:
the commercial power supply module is used for supplying 220V alternating current;
the voltage reduction rectification filtering module is used for converting 220V alternating current into direct current;
the first power supply module is used as a first power supply for supplying power;
the voltage detection module is used for detecting whether the output voltage of the first power supply module is under-voltage or not and driving the standby power supply module when the output voltage is under-voltage;
the power-off control module is used for driving the standby power supply module when the voltage reduction rectification filter module does not output voltage;
the standby power supply charging module is used for supplying voltage to the standby power supply module;
the standby power supply module is used as a second power supply for supplying power when the power is cut off and under voltage;
the commercial power supply module is connected with the voltage-reducing rectifying and filtering module, the voltage-reducing rectifying and filtering module is connected with the first power supply module, the power-off control module and the standby power supply charging module, the power-off control module is connected with the standby power supply module, the first power supply module is connected with the voltage detection module and the standby power supply charging module, the voltage detection module is connected with the standby power supply module, and the standby power supply charging module is connected with the standby power supply module.
In a specific embodiment: the mains supply module supplies mains voltage 220V alternating current, and the voltage reduction rectification filtering module converts the 220V alternating current into direct current through the transformer W, the rectifier T and the filter Y to supply power for a subsequent circuit.
In this embodiment: referring to fig. 2 and 3, the first power supply module includes a voltage regulator U1, a diode D1, and a resistor R2, an input terminal of the voltage regulator U1 is connected to the buck rectifier filter module, a negative terminal of a connection circuit of the voltage regulator U1 is connected to a negative terminal of the circuit, an output terminal of the voltage regulator U1 is connected to a positive terminal of the diode D1, a negative terminal of the diode D1 is connected to the resistor R2, and the other terminal of the resistor R2 is connected to the backup power charging module.
The diode D1 is a current limiting diode, and the main principle of the diode is to use the unidirectional conductivity of the PN junction, and add a lead and package on the PN junction to form a diode. Voltage regulator U1 outputs a constant dc voltage VCC1 as the first power supply.
In this embodiment: referring to fig. 2, the voltage detection module includes a potentiometer RP1, a resistor R3, a resistor R4, a diode D4, a capacitor C1, and an amplifier U2, one end of the potentiometer RP1 is connected to the resistor R4 and the first power supply module, the other end of the potentiometer RP1 is connected to the resistor R3 and the inverting terminal of the amplifier U2, the other end of the resistor R3 is connected to the negative terminal of the circuit, the other end of the resistor R4 is connected to the negative terminal of the diode D4, the capacitor C1 and the inverting terminal of the amplifier U2, the other end of the capacitor C1 is connected to the negative terminal of the circuit, the positive terminal of the diode D4 is connected to the negative terminal of the circuit, and the output terminal of the amplifier U2 is connected to the standby power supply module.
When the direct current voltage VCC1 that stabiliser U1 output is normal, the voltage on resistance R3 is greater than the voltage on zener diode D4, amplifier U2 output low level, when leading to direct current voltage VCC1 to be less than the threshold value when stabiliser U1 breaks down, the voltage on resistance R3 is less than the voltage on zener diode D4, amplifier U2 output high level, triode V2 switches on at this moment, and then battery E1 passes through triode V2 output voltage VCC 2.
In this embodiment: referring to fig. 2, the power-off control module includes a diode D2, a diode D3, and a relay J1, wherein the anode of the diode D2 is connected to the buck rectifier-filter module, the cathode of the diode D2 is connected to the cathode of the diode D3 and the relay J1, and the anode of the diode D3 is connected to the other end of the relay J1 and the cathode of the circuit.
When the mains supply is disconnected, the relay J1 does not work, the switch S1 is closed, and the battery E1 supplies voltage VCC3 through the switch S1.
In this embodiment: referring to fig. 2, the standby power charging module includes a resistor R1 and a transistor V1, one end of the resistor R1 is connected to the buck rectifier and filter module, the other end of the resistor R1 is connected to the collector of the transistor V1, the base of the transistor V1 is connected to the first power supply module, and the emitter of the transistor V1 is connected to the standby power module.
The direct current output by the voltage stabilizer U1 passes through the diode D1 and the resistor R2 to enable the triode V1 to be conducted, and then the voltage reduction rectification filter module charges the standby power supply module through the resistor R1 and the triode V1.
In this embodiment: referring to fig. 2, the standby power module includes a battery E1, a transistor V2, a switch S1, a negative electrode of the battery E1 is connected, a positive electrode of the battery E1 is connected to a collector of the transistor V2, the switch S1, and a standby power charging module, and a base of the transistor V2 is connected to the voltage detection module.
When the voltage VCC1 output by the first power supply is undervoltage, the battery E1 as a second power supply outputs the voltage VCC2 through the triode V1; when the utility power supply module is powered off, and no voltage is output by the voltage-reducing rectifying and filtering module and the first power supply module, the battery E1 outputs a voltage VCC3 through the switch S1.
The utility model discloses a theory of operation is: the mains supply module supplies 220V alternating current, the voltage reduction rectification filtering module converts the 220V alternating current into direct current, the first power supply module serves as a first power supply to supply power, the voltage detection module detects whether the output voltage of the first power supply module is under-voltage or not, the standby power supply module is driven when the output voltage of the voltage reduction rectification filtering module is under-voltage, the power-off control module drives the standby power supply module when the voltage reduction rectification filtering module does not output voltage, the standby power supply charging module supplies voltage for the standby power supply module, and the standby power supply module serves as a second power supply to supply power.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (6)

1. An interactive double-direct-current power supply switching device is characterized in that:
this interactive two direct current power switching device includes:
the commercial power supply module is used for supplying 220V alternating current;
the voltage reduction rectification filtering module is used for converting 220V alternating current into direct current;
the first power supply module is used as a first power supply for supplying power;
the voltage detection module is used for detecting whether the output voltage of the first power supply module is under-voltage or not and driving the standby power supply module when the output voltage is under-voltage;
the power-off control module is used for driving the standby power supply module when the voltage reduction rectification filter module does not output voltage;
the standby power supply charging module is used for supplying voltage to the standby power supply module;
the standby power supply module is used as a second power supply for supplying power when power is off and under voltage;
the commercial power supply module is connected with the voltage-reducing rectifying and filtering module, the voltage-reducing rectifying and filtering module is connected with the first power supply module, the power-off control module and the standby power supply charging module, the power-off control module is connected with the standby power supply module, the first power supply module is connected with the voltage detection module and the standby power supply charging module, the voltage detection module is connected with the standby power supply module, and the standby power supply charging module is connected with the standby power supply module.
2. The interactive dual-direct-current power switching device of claim 1, wherein the first power supply module comprises a voltage regulator U1, a diode D1 and a resistor R2, an input end of the voltage regulator U1 is connected with the buck rectifying and filtering module, a negative end of a connection circuit of the voltage regulator U1 is connected with a negative electrode of the circuit, an output end of the voltage regulator U1 is connected with a positive electrode of the diode D1, a negative electrode of the diode D1 is connected with the resistor R2, and the other end of the resistor R2 is connected with the backup power charging module.
3. The interactive dual-direct-current power switching device of claim 1, wherein the voltage detection module comprises a potentiometer RP1, a resistor R3, a resistor R4, a diode D4, a capacitor C1 and an amplifier U2, one end of the potentiometer RP1 is connected with the resistor R4 and the first power supply module, the other end of the potentiometer RP1 is connected with the resistor R3 and the inverting terminal of the amplifier U2, the other end of the resistor R3 is connected with the negative pole of the circuit, the other end of the resistor R4 is connected with the negative pole of the diode D4, the capacitor C1 and the inverting terminal of the amplifier U2, the other end of the capacitor C1 is connected with the negative pole of the circuit, the positive pole of the diode D4 is connected with the negative pole of the circuit, and the output end of the amplifier U2 is connected with the standby power module.
4. The interactive double-direct-current power supply switching device according to claim 1, wherein the power-off control module comprises a diode D2, a diode D3 and a relay J1, the anode of the diode D2 is connected with the buck rectifier and filter module, the cathode of the diode D2 is connected with the cathode of the diode D3 and the relay J1, and the anode of the diode D3 is connected with the other end of the relay J1 and the cathode of the circuit.
5. The interactive dual direct-current power switching device of claim 1, wherein the standby power charging module comprises a resistor R1 and a transistor V1, one end of the resistor R1 is connected to the buck rectifying and filtering module, the other end of the resistor R1 is connected to a collector of a transistor V1, a base of the transistor V1 is connected to the first power supply module, and an emitter of the transistor V1 is connected to the standby power module.
6. The interactive dual dc power switching device of claim 4, wherein the standby power module comprises a battery E1, a transistor V2, a switch S1, a negative terminal of the battery E1 is connected, a positive terminal of the battery E1 is connected to a collector of the transistor V2, the switch S1, a standby power charging module, and a base of the transistor V2 is connected to the voltage detection module.
CN202123203587.0U 2021-12-20 2021-12-20 Interactive double-direct-current power supply switching device Active CN216751302U (en)

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Application Number Priority Date Filing Date Title
CN202123203587.0U CN216751302U (en) 2021-12-20 2021-12-20 Interactive double-direct-current power supply switching device

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Application Number Priority Date Filing Date Title
CN202123203587.0U CN216751302U (en) 2021-12-20 2021-12-20 Interactive double-direct-current power supply switching device

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CN216751302U true CN216751302U (en) 2022-06-14

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116094143A (en) * 2023-04-06 2023-05-09 北京电科智芯科技有限公司 Power voltage detecting system
CN117293997A (en) * 2023-11-27 2023-12-26 深圳创能恒电科技有限公司 Uninterrupted power supply

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116094143A (en) * 2023-04-06 2023-05-09 北京电科智芯科技有限公司 Power voltage detecting system
CN116094143B (en) * 2023-04-06 2023-08-25 北京电科智芯科技有限公司 Power voltage detecting system
CN117293997A (en) * 2023-11-27 2023-12-26 深圳创能恒电科技有限公司 Uninterrupted power supply
CN117293997B (en) * 2023-11-27 2024-03-01 深圳创能恒电科技有限公司 Uninterrupted power supply

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