CN213484565U - Voltage-stabilizing charging power supply circuit - Google Patents
Voltage-stabilizing charging power supply circuit Download PDFInfo
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- CN213484565U CN213484565U CN202022341880.2U CN202022341880U CN213484565U CN 213484565 U CN213484565 U CN 213484565U CN 202022341880 U CN202022341880 U CN 202022341880U CN 213484565 U CN213484565 U CN 213484565U
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- 230000000087 stabilizing effect Effects 0.000 claims abstract description 12
- 230000033228 biological regulation Effects 0.000 claims abstract description 4
- 239000003990 capacitor Substances 0.000 claims description 33
- 238000004804 winding Methods 0.000 claims description 9
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000009499 grossing Methods 0.000 claims 1
- 239000003381 stabilizer Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
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Abstract
The utility model discloses a steady voltage charging source circuit, including 220V city voltage converting circuit, rectification filter circuit, voltage stabilizing circuit, automatic charging circuit, the warning light, by charging source, 220V city voltage converting circuit makes 220V city voltage change to required voltage through transformer W, and rectification filter circuit provides the direct current of relative smoothness for the circuit, and voltage stabilizing circuit is the power supply of weak current part, the better steady voltage that provides, and automatic charging circuit is by the time base circuit control as comparison voltage switch circuit, and charging voltage's bound can be controlled to two slip rheostats, and the warning light action in the charging process. The utility model is used for steady voltage charging source circuit adopts simple electronic component to constitute, has the better steady voltage effect that provides of stabiliser, and protection circuit, increase of service life still can carry out the regulation of required charging voltage bound through two potentiometers to can charge to electronic equipment automatically, the circuit is simple, low cost.
Description
Technical Field
The utility model relates to a power technical field specifically is a steady voltage charging power supply circuit.
Background
Electronic products all need the supply of electricity just can continue work, along with long-time use of electronic products, make us need be continuous to its power supply, this has also led to electronic products's availability factor and life to descend, in order to improve electronic equipment's availability factor, improve its life, it is the key to provide steady smooth direct current, can prevent the inside damage of electronic equipment like this, steady voltage charging source on the market all is too complicated circuit, there is obvious not enough, the stability of power is high enough leads to the damage of circuit and the electrical apparatus that is charged easily, according to current technical defect, it is necessary to propose new solution.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a steady voltage charging power supply circuit 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:
a voltage-stabilizing charging power supply circuit comprises a 220V commercial voltage conversion circuit, a rectifying filter circuit, a voltage stabilizing circuit, an automatic charging circuit and a prompting lamp, and is charged by a charging power supply, wherein the 220V commercial voltage conversion circuit enables 220V commercial voltage to be changed into required voltage through a transformer W, the rectifying filter circuit provides relatively smooth direct current for the circuit, the voltage stabilizing circuit supplies power for a weak current part and better provides voltage stabilization, the automatic charging circuit is controlled by a time base circuit serving as a comparison voltage switch circuit, two sliding rheostats can control the upper limit and the lower limit of the charging voltage, and the prompting lamp acts in the charging process.
As a further technical solution of the present invention: one end of a primary winding of the transformer W is connected with 220V alternating current through a fuse FU, the other end of the primary winding of the transformer W is connected with 220V alternating current through a starting switch S1, a secondary winding of the transformer W is connected with two input ports of a rectifier T, an output port 2 of the rectifier T is connected with a capacitor C1 and an inductor L1, a port 4 of the rectifier T is connected with the other end of the capacitor C1 and an inductor L2, the other end of the inductor L1 is connected with a capacitor C2, a pin 1 of a voltage-stabilizing chip U2 and a capacitor C3, the other end of the inductor L2 is connected with the other end of the capacitor C2, the other end of the capacitor C3, a pin 2 of the voltage-stabilizing chip U2, a capacitor C4, a cathode of a diode D1, a pin 1 of a chip U2, an anode of a diode D2, one end of a sliding rheostat RP 23, a resistor R6, a capacitor C5 and a charged power supply, Pin 8 of chip U1 and pin 4 of chip U1, pin 5 of chip U1 is connected with the other end of resistor R1 and the cathode of diode D2, pin 2 of chip U1 is connected with the slip end of RP1, pin 6 of chip U1 is connected with the slip end of RP2, pin 3 of chip U1 is connected with resistor R2 and resistor R3, the other end of resistor R2 is connected with the anode of diode D1, the other end of resistor R3 is connected with the anode of diode D3, the cathode of diode D3 is connected with the other ends of resistor R4, resistor R5, capacitor C5 and charged power supply V, the other end of resistor R4 is connected with the other end of slide RP rheostat 1, resistor R5 is connected with one end of slide rheostat RP2, and the other end of slide RP2 is connected with the other end of resistor R6.
As a further technical solution of the present invention: the rectification filter circuit consists of a rectifier T, inductors L1 and L2 and capacitors C1 and C2.
As a further technical solution of the present invention: the voltage stabilizing circuit consists of a voltage stabilizing chip U2, a capacitor C3 and a capacitor C4, wherein the voltage stabilizing chip U2 is a three-terminal integrated voltage stabilizer.
As a further technical solution of the present invention: the automatic charging circuit is composed of a chip U1, a diode D2, a slide rheostat RP1 and a slide rheostat RP2, wherein the chip U1 is an NE555 chip.
As a further technical solution of the present invention: the diode D2 is a zener diode.
As a further technical solution of the present invention: the diode D1 is a light emitting diode.
As a further technical solution of the present invention: the slide rheostats RP1 and RP2 are potentiometers.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model is used for steady voltage charging source circuit adopts simple electronic component to constitute, has the better steady voltage effect that provides of stabiliser, and protection circuit, increase of service life still can carry out the regulation of required charging voltage bound through two potentiometers to can charge to electronic equipment automatically, the circuit is simple, low cost.
Drawings
FIG. 1 is a block diagram of a voltage-stabilized charging power supply circuit;
FIG. 2 is a circuit diagram of a regulated charging power supply circuit;
fig. 3 is a schematic diagram of the internal structure of NE 555.
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, a voltage-stabilizing charging power supply circuit includes a 220V commercial voltage converting circuit, a rectifying filter circuit, a voltage stabilizing circuit, an automatic charging circuit, a warning lamp, and a charged power supply, wherein the 220V commercial voltage converting circuit converts 220V commercial voltage into required voltage through a transformer W, the rectifying filter circuit provides relatively smooth direct current for the circuit, the voltage stabilizing circuit supplies power to a weak current part to better provide voltage stabilization, the automatic charging circuit is controlled by a time-base circuit serving as a comparison voltage switching circuit, two slide varistors can control upper and lower limits of charging voltage, and the warning lamp acts during charging.
Example 2: on the basis of embodiment 1, please refer to fig. 2, one end of the primary winding of the transformer W is connected to 220V ac through the fuse FU, the other end of the primary winding of the transformer W is connected to 220V ac through the start switch S1, the secondary winding of the transformer W is connected to two input ports of the rectifier T, the output port 2 of the rectifier T is connected to the capacitor C1 and the inductor L1, the port 4 of the rectifier T is connected to the other end of the capacitor C1 and the inductor L2, the other end of the inductor L1 is connected to the capacitor C2, the pin 1 of the regulator chip U2 and the capacitor C3, the other end of the inductor L2 is connected to the other end of the capacitor C2, the other end of the capacitor C3, the pin 2 of the regulator chip U2, the capacitor C4, the cathode of the diode D1, the pin 1 of the chip U2, the anode of the diode D2, one end of the slide rheostat RP1, the resistor R6, the capacitor C5 and the charged power source, The resistor R1, the pin 8 of the chip U1 and the pin 4 of the chip U1, the pin 5 of the chip U1 is connected with the other end of the resistor R1 and the cathode of the diode D2, the pin 2 of the chip U1 is connected with the slip end of the RP1, the pin 6 of the chip U1 is connected with the slip end of the RP2, the pin 3 of the chip U1 is connected with the resistor R2 and the resistor R3, the other end of the resistor R2 is connected with the anode of the diode D1, the other end of the resistor R3 is connected with the anode of the diode D3, the cathode of the diode D3 is connected with the resistor R4, the other end of the capacitor C4 and the other end of the charged power supply V, the other end of the resistor R4 is connected with the other end of the slide rheostat RP 4, the resistor R4 is connected with one end of the.
The utility model discloses a theory of operation is: pressing a starting switch S1, obtaining stable voltage by 220V mains voltage through a rectifying, filtering and voltage stabilizing circuit, connecting two resistor networks in parallel with a charged power supply V, wherein the resistor consists of potentiometers RP1, RP2 and other resistors inwards, the voltages of a pin 2 and a pin 6 of an NE555 chip can be respectively adjusted through RP1 and RP2, sampling the charging voltage of the charged power supply V, entering the NE555 chip through a pin 2 and a pin 6 of the NE555 chip to change the reference voltages of two comparators inside the NE555 chip, when the voltage of the charged power supply V is lower than the voltage of the pin 2 of the NE555 chip, the output voltage of the pin 3 of the NE555 chip is changed into high level, charging the charged power supply V through a resistor R3 and a diode D3, and prompting lamps are turned on, when the power supply of the charged power supply V reaches the voltage of the pin 6 of the NE555 chip, the pin 3 of the NE555 chip is in low level, stopping charging and prompting lamps are turned off, wherein the diode D3 is used for preventing the charged power supply V from discharging to the NE555 chip, resistor R3 limits current.
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. A voltage-stabilizing charging power supply circuit comprises a 220V commercial voltage conversion circuit, a rectifying filter circuit, a voltage stabilizing circuit, an automatic charging circuit, a prompting lamp and a charged power supply, and is characterized in that the 220V commercial voltage conversion circuit comprises a transformer W, one end of a primary winding of the transformer W is connected with 220V alternating current through a fuse FU, the other end of the primary winding of the transformer W is connected with 220V alternating current through a starting switch S1, a secondary winding of the transformer W is connected with two input ports of a rectifier T, an output port 2 of the rectifier T is connected with a capacitor C1 and an inductor L6855, a port 4 of the rectifier T is connected with the other end of a capacitor C1 and an inductor L2, the other end of the inductor L1 is connected with a capacitor C2, a pin 1 and a capacitor C3 of a voltage-stabilizing chip U2, the other end of the inductor L2 is connected with the other end of the capacitor C2, the other end of the capacitor C, A cathode of the diode D1, a pin 1 of the chip U1, an anode of the diode D1, one end of a slide rheostat RP1, a resistor R1, a capacitor C1 and a charged power source V, a pin 3 of the voltage stabilizing chip U1 is connected with the other end of the capacitor C1, the resistor R1, a pin 8 of the chip U1 and a pin 4 of the chip U1, a pin 5 of the chip U1 is connected with the other end of the resistor R1 and the cathode of the diode D1, a pin 2 of the chip U1 is connected with a slider end of the RP1, a pin 6 of the chip U1 is connected with the slider end of the RP1, a pin 3 of the chip U1 is connected with the resistor R1 and the resistor R1, the other end of the resistor R1 is connected with the anode of the diode D1, the cathode of the diode D1 is connected with the resistor R1, the other end of the capacitor C1 and the other end of the charged power source V, the slide rheostat R1 is connected with the slide rheostat 1, and, the other end of the slide rheostat RP2 is connected with the other end of the resistor R6.
2. The regulated charging power supply circuit according to claim 1, wherein said rectifying and smoothing circuit is composed of a rectifier T, inductors L1, L2 and capacitors C1, C2.
3. The regulated charging power supply circuit according to claim 2, wherein said regulated circuit is composed of a regulation chip U2, a capacitor C3 and a capacitor C4, and the regulation chip U2 is a three-terminal integrated regulator.
4. The regulated charging power supply circuit according to claim 3, wherein said automatic charging circuit comprises a chip U1, a diode D2, a slide rheostat RP1 and a slide rheostat RP2, and the chip U1 is NE555 chip.
5. The regulated charging power supply circuit according to claim 4, wherein said diode D2 is a regulator diode.
6. The regulated charging power supply circuit according to claim 5, wherein said diode D1 is a light emitting diode.
7. The regulated charging power supply circuit according to claim 1, wherein said slide varistors RP1 and RP2 are potentiometers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022341880.2U CN213484565U (en) | 2020-10-20 | 2020-10-20 | Voltage-stabilizing charging power supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022341880.2U CN213484565U (en) | 2020-10-20 | 2020-10-20 | Voltage-stabilizing charging power supply circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213484565U true CN213484565U (en) | 2021-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022341880.2U Expired - Fee Related CN213484565U (en) | 2020-10-20 | 2020-10-20 | Voltage-stabilizing charging power supply circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213484565U (en) |
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2020
- 2020-10-20 CN CN202022341880.2U patent/CN213484565U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210618 |