CN214850959U - Power supply circuit - Google Patents
Power supply circuit Download PDFInfo
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- CN214850959U CN214850959U CN202120380923.XU CN202120380923U CN214850959U CN 214850959 U CN214850959 U CN 214850959U CN 202120380923 U CN202120380923 U CN 202120380923U CN 214850959 U CN214850959 U CN 214850959U
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Abstract
The utility model belongs to power control circuit field, in particular to power supply circuit, including first power piezo-resistor, first power rectifier bridge, first power electric capacity, second power electric capacity, first power resistance, first power transient state diode, first power chip, second power chip, third power electric capacity, fourth power electric capacity, fifth power electric capacity, sixth power electric capacity and seventh power electric capacity, through setting up first power piezo-resistor, first power rectifier bridge, first power electric capacity, second power electric capacity, first power resistance, first power transient state diode, first power chip, second power chip, third power electric capacity, fourth power electric capacity, fifth power electric capacity, sixth power electric capacity and seventh power electric capacity, be favorable to filtering clutter and the stability that improves output voltage.
Description
Technical Field
The utility model belongs to the power control circuit field, in particular to power supply circuit.
Background
With the development of electronic technology, the requirements on power supply circuits are higher and higher, and the existing power supply circuits generally have the problems of unstable voltage and more noise waves.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
In order to solve the above problems in the prior art, the present invention provides a power supply circuit with stable voltage and less noise waves.
(II) technical scheme
In order to achieve the above object, the utility model discloses a main technical scheme include:
a power supply circuit comprises a first power supply piezoresistor, a first power supply rectifier bridge, a first power supply capacitor, a second power supply capacitor, a first power supply resistor, a first power supply transient diode, a first power supply chip, a second power supply chip, a third power supply capacitor, a fourth power supply capacitor, a fifth power supply capacitor, a sixth power supply capacitor and a seventh power supply capacitor, wherein the first power supply piezoresistor is connected with the first power supply rectifier bridge, one end of the first power supply capacitor, one end of the second power supply capacitor and one end of the first power supply resistor are all connected with the first power supply rectifier bridge, one end of the first power supply transient diode, the first power supply chip and the second power supply chip are all connected with the other end of the first power supply resistor, one end of the third power supply capacitor, one end of the fourth power supply capacitor, one end of the fifth power supply capacitor, one end of the sixth power supply capacitor and one end of the seventh power supply capacitor are all connected with the second power supply chip, the other end of the first power supply capacitor, the other end of the second power supply capacitor, the other end of the third power supply capacitor, the other end of the fourth power supply capacitor, the other end of the fifth power supply capacitor, the other end of the sixth power supply capacitor, the other end of the seventh power supply capacitor, the second power supply chip and the other end of the first power supply transient diode are connected with each other.
In the power supply circuit, the first power supply chip is an LV7805 type chip, and the second power supply chip is an LV78121 type chip.
In the power supply circuit, the first power rectifier bridge is a KBP307 rectifier bridge.
In the power supply circuit, the first power supply voltage dependent resistor is a 14D470 voltage dependent resistor.
In the power supply circuit, the first power supply capacitor is a 1000 muF/35V capacitor, the third power supply capacitor is a 1000 muF/25V capacitor, and the second power supply capacitor, the fourth power supply capacitor, the fifth power supply capacitor, the sixth power supply capacitor and the seventh power supply capacitor are all 104 capacitors.
(III) advantageous effects
The utility model has the advantages that: through setting up first power piezo-resistor, first power rectifier bridge, first power electric capacity, second power electric capacity, first power resistance, first power transient state diode, first power chip, second power chip, third power electric capacity, fourth power electric capacity, fifth power electric capacity, sixth power electric capacity and seventh power electric capacity, be favorable to filtering clutter and improve output voltage's stability.
Drawings
Fig. 1 is a schematic structural diagram of the power supply circuit of the present invention.
[ description of reference ]
1: a first power supply varistor;
2: a first power supply rectifier bridge;
3: a first power supply capacitor;
4: a second power supply capacitor;
5: a first power supply resistor;
6: a first power supply transient diode;
7: a first power supply chip;
8: a second power supply chip;
9: a third power supply capacitor;
10: a fourth power supply capacitor;
11: a fifth power supply capacitor;
12: a sixth power supply capacitor;
13: and a seventh power supply capacitor.
Detailed Description
For better explanation of the present invention, the following detailed description of the present invention will be made with reference to the accompanying drawings for the purpose of understanding.
The utility model discloses the most crucial design lies in: the power supply comprises a first power supply voltage dependent resistor, a first power supply rectifier bridge, a first power supply capacitor, a second power supply capacitor, a first power supply resistor, a first power supply transient diode, a first power supply chip, a second power supply chip, a third power supply capacitor, a fourth power supply capacitor, a fifth power supply capacitor, a sixth power supply capacitor and a seventh power supply capacitor.
Referring to fig. 1, a power supply circuit,
the power supply comprises a first power supply piezoresistor, a first power supply rectifier bridge, a first power supply capacitor, a second power supply capacitor, a first power supply resistor, a first power supply transient diode, a first power supply chip, a second power supply chip, a third power supply capacitor, a fourth power supply capacitor, a fifth power supply capacitor, a sixth power supply capacitor and a seventh power supply capacitor, wherein the first power supply piezoresistor is connected with the first power supply rectifier bridge, one end of the first power supply capacitor, one end of the second power supply capacitor and one end of the first power supply resistor are all connected with the first power supply rectifier bridge, one end of the first power supply transient diode, the first power supply chip and the second power supply chip are all connected with the other end of the first power supply resistor, one end of the third power supply capacitor, one end of the fourth power supply capacitor, one end of the fifth power supply capacitor, one end of the sixth power supply capacitor and one end of the seventh power supply capacitor are all connected with the second power supply chip, the other end of the first power supply capacitor, the other end of the second power supply capacitor, the other end of the third power supply capacitor, the other end of the fourth power supply capacitor, the other end of the fifth power supply capacitor, the other end of the sixth power supply capacitor, the other end of the seventh power supply capacitor, the second power supply chip and the other end of the first power supply transient diode are connected with each other.
Power supply circuit's theory of operation: at the external 16V power of first power supply module, with voltage stabilization about 21V after the rectification of first power rectifier bridge, rethread first power chip and second power chip stabilize the power at 12V and 5V to the output is used, sets up first power piezo-resistor, and the prevention of being convenient for has the thunder and lightning to destroy circuit structure, sets up a plurality of power electric capacity, and the filtering clutter of being convenient for, so that reach the effect of steady voltage.
From the above description, the beneficial effects of the present invention are: through setting up first power piezo-resistor, first power rectifier bridge, first power electric capacity, second power electric capacity, first power resistance, first power transient state diode, first power chip, second power chip, third power electric capacity, fourth power electric capacity, fifth power electric capacity, sixth power electric capacity and seventh power electric capacity, be favorable to filtering clutter and improve output voltage's stability.
Referring to fig. 1, a first embodiment of the present invention is:
a power supply circuit comprises a first power voltage dependent resistor 1, a first power rectifier bridge 2, a first power capacitor 3, a second power capacitor 4, a first power resistor 5, a first power transient diode 6, a first power chip 7, a second power chip 8, a third power capacitor 9, a fourth power capacitor 10, a fifth power capacitor 11, a sixth power capacitor 12 and a seventh power capacitor 13, wherein the first power voltage dependent resistor 1 is connected with the first power rectifier bridge 2, one end of the first power capacitor 3, one end of the second power capacitor 4 and one end of the first power resistor 5 are all connected with the first power rectifier bridge 2, one end of the first power transient diode 6, the first power chip 7 and the second power chip 8 are all connected with the other end of the first power resistor 5, one end of the third power capacitor 9, one end of the fourth power capacitor 10, and a capacitor, One end of a fifth power capacitor 11, one end of a sixth power capacitor 12 and one end of a seventh power capacitor 13 are all connected with the second power chip 8, and the other end of the first power capacitor 3, the other end of the second power capacitor 4, the other end of the third power capacitor 9, the other end of the fourth power capacitor 10, the other end of the fifth power capacitor 11, the other end of the sixth power capacitor 12, the other end of the seventh power capacitor 13, the second power chip 8 and the other end of the first power transient diode 6 are connected with each other.
The first power supply chip 7 is an LV7805 type chip, and the second power supply chip 8 is an LV78121 type chip.
Adopt LV7805 type chip through first power chip 7, second power chip 8 adopts LV78121 type chip, is favorable to promoting the stability of voltage by a wide margin.
The first power supply rectifier bridge 2 adopts a KBP307 type rectifier bridge.
The KBP307 type rectifier bridge is adopted by the first power supply rectifier bridge 2, so that the use performance of the first power supply rectifier bridge 2 is improved.
The first power supply voltage dependent resistor 1 adopts a 14D470 voltage dependent resistor.
The first power supply voltage dependent resistor 1 is a 14D470 voltage dependent resistor, which is beneficial to ensuring the safety of the circuit structure.
The first power supply capacitor 3 is a 1000 muF/35V capacitor, the third power supply capacitor 9 is a 1000 muF/25V capacitor, and the second power supply capacitor 4, the fourth power supply capacitor 10, the fifth power supply capacitor 11, the sixth power supply capacitor 12 and the seventh power supply capacitor 13 are all 104 capacitors.
Adopt 1000 mu F35V type electric capacity through first power capacitor 3, third power capacitor 9 adopts 1000 mu F25V type electric capacity, second power capacitor 4, fourth power capacitor 10, fifth power capacitor 11, sixth power capacitor 12 and seventh power capacitor 13 all adopt 104 type electric capacity, are favorable to improving the effect of circuit structure filtering clutter.
The model and parameters of the circuit components are shown in fig. 1, and the voltage output by the first power supply chip 7 and the second power supply chip 8 can be directly connected into the control chip to provide electric energy for the control chip.
To sum up, the utility model provides a pair of power supply circuit, through setting up first power piezo-resistor, first power rectifier bridge, first power electric capacity, second power electric capacity, first power resistance, first power transient diode, first power chip, second power chip, third power electric capacity, fourth power electric capacity, fifth power electric capacity, sixth power electric capacity and seventh power electric capacity, be favorable to filtering clutter and improvement output voltage's stability.
The above mentioned is only the embodiment of the present invention, and not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.
Claims (5)
1. A power supply circuit is characterized by comprising a first power supply piezoresistor, a first power supply rectifier bridge, a first power supply capacitor, a second power supply capacitor, a first power supply resistor, a first power supply transient diode, a first power supply chip, a second power supply chip, a third power supply capacitor, a fourth power supply capacitor, a fifth power supply capacitor, a sixth power supply capacitor and a seventh power supply capacitor, wherein the first power supply piezoresistor is connected with the first power supply rectifier bridge, one end of the first power supply capacitor, one end of the second power supply capacitor and one end of the first power supply resistor are all connected with the first power supply rectifier bridge, one end of the first power supply transient diode, the first power supply chip and the second power supply chip are all connected with the other end of the first power supply resistor, and one end of the third power supply capacitor, one end of the fourth power supply capacitor, one end of the fifth power supply capacitor, the second power supply capacitor, the third power supply capacitor, the fourth power supply capacitor and the fourth power supply capacitor, One end of the sixth power capacitor and one end of the seventh power capacitor are connected with the second power chip, and the other end of the first power capacitor, the other end of the second power capacitor, the other end of the third power capacitor, the other end of the fourth power capacitor, the other end of the fifth power capacitor, the other end of the sixth power capacitor, the other end of the seventh power capacitor, the second power chip and the other end of the first power transient diode are connected with each other.
2. The power supply circuit of claim 1, wherein the first power chip is a LV7805 type chip, and the second power chip is a LV78121 type chip.
3. The power supply circuit according to claim 1, wherein said first power rectifier bridge is a KBP307 rectifier bridge.
4. The power supply circuit of claim 1, wherein said first power supply voltage dependent resistor is a 14D470 voltage dependent resistor.
5. The power supply circuit of claim 1, wherein the first power supply capacitor is a 1000 μ F/35V capacitor, the third power supply capacitor is a 1000 μ F/25V capacitor, and the second, fourth, fifth, sixth, and seventh power supply capacitors are all 104 capacitors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120380923.XU CN214850959U (en) | 2021-02-18 | 2021-02-18 | Power supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120380923.XU CN214850959U (en) | 2021-02-18 | 2021-02-18 | Power supply circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214850959U true CN214850959U (en) | 2021-11-23 |
Family
ID=78883773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120380923.XU Active CN214850959U (en) | 2021-02-18 | 2021-02-18 | Power supply circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214850959U (en) |
-
2021
- 2021-02-18 CN CN202120380923.XU patent/CN214850959U/en active Active
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