CN213717858U - Intelligent voltage-stabilized power supply - Google Patents
Intelligent voltage-stabilized power supply Download PDFInfo
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- CN213717858U CN213717858U CN202023065439.2U CN202023065439U CN213717858U CN 213717858 U CN213717858 U CN 213717858U CN 202023065439 U CN202023065439 U CN 202023065439U CN 213717858 U CN213717858 U CN 213717858U
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Abstract
The utility model discloses an intelligence constant voltage power supply, including power conversion circuit, rectifier filter circuit, temperature acquisition module, control module, alarm module, DA conversion module, voltage stabilizing module, power conversion module passes through the transformer and changes the input commercial voltage, converts the alternating current to smooth direct current through rectifier filter circuit, control module control circuit's operation, and temperature acquisition module is used for gathering near the temperature information of power, and alarm module is used for the suggestion of reporting to the police, and DA conversion module converts digital signal into analog current, and voltage stabilizing module is used for exporting stable magnitude of voltage. The utility model discloses intelligence constant voltage power supply adopts the comparator, and the regulator carries out the steady voltage, and the steady voltage is effectual, and application scope is wide, through the temperature detection function, better protection circuit, including the conversion between the digital-analog, avoid the analog signal distortion, reduce the interference of signal, improve circuit's reliability.
Description
Technical Field
The utility model relates to the technical field of power, specifically an intelligence constant voltage power supply.
Background
Along with the popularization of the current power electronic equipment, revolutionary changes are brought to the life mode, the development of the society is accelerated, the direct current stabilized voltage power supply is widely applied to various fields as one of the common equipment with electronic technological force, the traditional direct current stabilized voltage power supply is single in function, difficult to control, low in reliability, large in interference and large in size, along with the development of the electronic technology, the performance requirements of various electronic equipment on a stable power supply are gradually improved, and the stable power supply also needs to be continuously developed in the directions of small size, high efficiency, low cost, intellectualization, high reliability and the like.
Disclosure of Invention
An object of the utility model is to provide an intelligence constant voltage power supply 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:
the utility model provides an intelligence constant voltage power supply, includes power conversion circuit, rectifier filter circuit, temperature acquisition module, control module, alarm module, DA conversion module, voltage stabilizing module, power conversion module passes through the transformer and changes the input commercial voltage, converts alternating current to smooth direct current through rectifier filter circuit, control module control circuit's operation, and temperature acquisition module is used for gathering near the temperature information of power, and alarm module is used for the suggestion of reporting to the police, and DA conversion module converts digital signal into analog current, and voltage stabilizing module is used for exporting stable magnitude of voltage.
As a further technical solution of the present invention: the output end of the D/a conversion module is connected to the input end VIN of the voltage regulation module, the input end VIN of the voltage regulation module is connected to the resistor R1, the resistor R2, the collector of the transistor P1, the emitter of the transistor N1 and the pin 3 of the chip a2, the base of the transistor P1 is connected to the other end of the resistor R1, the resistor R1 and the collector of the transistor P1, the emitter of the transistor P1 is connected to the base of the transistor N1, the collector of the transistor N1 is connected to the resistor R1 and the resistor R1, the other end of the resistor R1 is connected to the other end of the resistor R1 and the base of the transistor P1, the other end of the resistor R1 is connected to the resistor R1 and the output end VOUT of the voltage regulation module, the emitter of the transistor P1 is connected to the pin 1 of the chip a1 and the potentiometer RP1 through the resistor R1, the other end of the potentiometer RP1 is connected to the pin 2, 4 of the chip a1, the resistor C1, the other end of the resistor R, the same-direction end of the comparator A1 is connected with the other end of the capacitor C1 and the resistor R11 through the resistor R7, the other end of the resistor R11 is connected with the slide end of the potentiometer RP1, and the output end of the comparator A1 is connected with the other end of the resistor R5 and the other end of the resistor R6.
1. As a further technical solution of the present invention: the voltage stabilizing module consists of a sampling circuit, a comparison circuit and an adjusting circuit, wherein the sampling circuit consists of a sampling resistor R9 and a sampling resistor R8, the adjusting circuit consists of a triode N1 and a P1, and the comparison circuit consists of a comparator A1.
As a further technical solution of the present invention: the control module adopts an STC89C52 singlechip.
As a further technical solution of the present invention: the temperature acquisition module adopts an NTC thermistor temperature sensor.
As a further technical solution of the present invention: the D/A conversion module adopts a DAC0823 conversion integrated chip.
As a further technical solution of the present invention: the comparator A1 adopts LM741 chip, and chip A2 is made into precision voltage source and adopts chip LM 399.
As a further technical solution of the present invention: the triodes P1 and P2 are PNP type, and the triode N1 is NPN type.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses intelligence constant voltage power supply adopts the comparator, and the regulator carries out the steady voltage, and the steady voltage is effectual, and application scope is wide, through the temperature detection function, better protection circuit, including the conversion between the digital-analog, avoid the analog signal distortion, reduce the interference of signal, improve circuit's reliability.
Drawings
Fig. 1 is a schematic block diagram of the principle of the present invention.
Fig. 2 is a schematic diagram of the voltage stabilizing module of the present invention.
Fig. 3 is a circuit diagram of the voltage stabilizing module of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1: referring to fig. 1, an intelligent voltage-stabilized power supply comprises a power conversion circuit, a rectification filter circuit, a temperature acquisition module, a control module, an alarm module, a D/a conversion module and a voltage stabilization module, wherein the power conversion module changes an input voltage into a commercial power through a transformer, alternating current is converted into smooth direct current through the rectification filter circuit, the control module controls the operation of the circuit, the temperature acquisition module is used for acquiring temperature information near a power supply, the alarm module is used for alarm prompt, the D/a conversion module converts a digital signal into analog current, and the voltage stabilization module is used for outputting a stable voltage value.
Example 2: based on embodiment 1, please refer to fig. 2-3, an output terminal of the D/a conversion module is connected to an input terminal VIN of the voltage regulation module, the input terminal VIN of the voltage regulation module is connected to a resistor R1, a resistor R2, a collector of a transistor P1, an emitter of a transistor N1, and a pin 3 of a chip a2, a base of the transistor P1 is connected to the other terminal of the resistor R1, a resistor R5, and a collector of a transistor P2, an emitter of the transistor P1 is connected to a base of a transistor N1, a collector of the transistor N1 is connected to a resistor R3 and a resistor R4, the other terminal of the resistor R3 is connected to the other terminal of the resistor R2 and a base of a transistor P2, the other terminal of the resistor R4 is connected to a resistor R9 and an output terminal VOUT of the voltage regulation module, an emitter of a transistor P2 is connected to a pin 1 of a chip a2 and a potentiometer 2 through a resistor R10, and, Resistance R8 and resistance R6, the other end of reverse end connecting resistance R9 of comparator A1 and the other end of resistance R8, the syntropy end of comparator A1 passes through resistance R7 and connects the other end of electric capacity C1 and resistance R11, potentiometre RP 1's gleitbretter end is connected to resistance R11's the other end, the other end of output connecting resistance R5 and the other end of resistance R6 of comparator A1, the utility model discloses voltage stabilizing module's schematic is as shown in FIG. 2.
The utility model discloses a theory of operation is: alternating current voltage is processed by a transformer, a rectifier and a filter capacitor to obtain direct current, a working power supply is provided for a single chip microcomputer, when the power supply temperature is too high or the current is too large to cause heating, the compiling of a temperature subprogram of the single chip microcomputer controls an alarm system to give an alarm, the single chip microcomputer converts an input power supply into a digital signal, the digital signal is converted into an analog current signal by a digital-to-analog converter, and finally a stable voltage is obtained by a voltage stabilizing module, wherein in the voltage stabilizing module, a resistor R9 and a resistor R8 form a voltage sampling loop, the sampling signal is compared with a reference voltage signal at the same direction end of a comparator LM741, a generated error control signal is amplified by a triode P1, and a triode.
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 (7)
1. An intelligent voltage-stabilized power supply comprises a power conversion circuit, a rectifying and filtering circuit, a temperature acquisition module, a control module, an alarm module, a D/A conversion module and a voltage stabilization module, and is characterized in that the output end of the D/A conversion module is connected with the input end VIN of the voltage stabilization module, the input end VIN of the voltage stabilization module is connected with a resistor R1, a resistor R2, a collector of a triode P1, an emitter of a triode N1 and a pin 3 of a chip A2, the base of a triode P1 is connected with the other end of a resistor R1, a resistor R5 and a collector of a triode P2, the emitter of a triode P1 is connected with the base of a triode N1, the collector of a triode N1 is connected with a resistor R3 and a resistor R4, the other end of a resistor R3 is connected with the other end of a resistor R2 and the base of a triode P2, the other end of the resistor R4 is connected with a resistor R9 and an output end VOUT of the voltage stabilization module, the other end of the potentiometer RP1 is connected with the pins 2 and 4 of the chip A2, the capacitor C1, the resistor R8 and the resistor R6, the reverse end of the comparator A1 is connected with the other end of the resistor R9 and the other end of the resistor R8, the same-direction end of the comparator A1 is connected with the other end of the capacitor C1 and the resistor R11 through the resistor R7, the other end of the resistor R11 is connected with the slide end of the potentiometer RP1, and the output end of the comparator A1 is connected with the other end of the resistor R5 and the other end of the resistor R6.
2. An intelligent regulated power supply according to claim 1 wherein the voltage regulation module comprises a sampling circuit, a comparison circuit and an adjustment circuit, the sampling circuit comprises a sampling resistor R9 and a sampling resistor R8, the adjustment circuit comprises transistors N1 and P1, and the comparison circuit comprises a comparator a 1.
3. The intelligent regulated power supply according to claim 2, wherein the control module employs an STC89C52 single chip microcomputer.
4. The intelligent regulated power supply according to claim 3, wherein the temperature acquisition module employs an NTC thermistor temperature sensor.
5. The regulated power supply according to claim 4, wherein the D/A conversion module is a DAC0823 conversion integrated chip.
6. An intelligent regulated power supply according to claim 5 wherein comparator A1 is implemented using LM741 chip, chip A2 is implemented as a precision voltage source, and chip LM399 is implemented.
7. An intelligent regulated power supply according to claim 1 wherein transistors P1 and P2 are PNP and transistor N1 is NPN.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023065439.2U CN213717858U (en) | 2020-12-18 | 2020-12-18 | Intelligent voltage-stabilized power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023065439.2U CN213717858U (en) | 2020-12-18 | 2020-12-18 | Intelligent voltage-stabilized power supply |
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| Publication Number | Publication Date |
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| CN213717858U true CN213717858U (en) | 2021-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202023065439.2U Active CN213717858U (en) | 2020-12-18 | 2020-12-18 | Intelligent voltage-stabilized power supply |
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