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Enhanced resistance-capacitance power supply circuit

A resistance-capacitance power supply, an enhanced technology, applied in the electronic field, can solve the problems of increasing the capacitance value and increasing the apparent power consumption, and achieve the effect of increasing the output power, low cost, and alleviating the output power of the power supply

Inactive Publication Date: 2021-02-26
HANGZHOU SUNRISE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the existing RC power supply scheme needs to increase the capacitance value in this case, resulting in an increase in apparent power consumption, and there is an insoluble contradiction between apparent power consumption and power output power

Method used

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Embodiment Construction

[0024] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0025] like figure 1 As shown, an enhanced RC power supply circuit includes an enhanced circuit, a power supply V1, a resistor R1, and a capacitor C1. The enhanced circuit includes a diode D3, a diode D4, a diode D5, a diode D6, a resistor R2, a capacitor C2, and a transistor Q1. The left side of resistor R1 is connected to the positive pole of power supply V1, the right side of resistor R1 is connected to the left side of capacitor C1, the right side of capacitor C1 is connected to the left side of resistor R2, the right side of resistor R2 is connected to the base of transistor Q1, the negative pole of diode D4 is connected to the right side of capacitor C1, and the diode The anode of D4 is connected to the emitter of the triode Q1 and the cathode of the electrolytic capacitor C2, the collector of the triode Q1 is connected to the cathode of the powe...

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Abstract

An enhancement circuit comprises a triode Q1, an emitting electrode of the triode Q1 passes through the positive electrode of a diode D4, and the negative electrode of the diode D4 is connected to thebase electrode of the triode Q1 through a resistor R4. The emitting electrode of the triode Q1 is further connected to the negative electrode of an electrolytic capacitor C2, the positive electrode of the electrolytic capacitor C2 is connected to the positive electrode of a diode D5 and the negative electrode of a diode D6, and the diode D5 and the diode D6 are connected in series in one path; the negative electrode of the diode D5 is further connected to the negative electrode of a diode D3, the positive electrode of the diode D3 is connected to the negative electrode of a diode D4, a diodeD8 is further connected between the negative electrode of the diode D5 and the positive electrode of a diode D6 in parallel, and the positive electrode of the diode D6 is connected to the collector electrode of a triode Q1. According to the scheme, the apparent power consumption is not influenced under the condition that the capacitance value of the capacitor is not increased, the output power ofthe power supply circuit can be increased, the contradiction between the apparent power consumption and the power supply output power is relieved, and the cost is lower.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to an enhanced resistance-capacitance power supply circuit. Background technique [0002] At present, there are three commonly used power supply schemes for electric energy meters, switching power supply, linear power supply and resistance-capacitance power supply. [0003] Among them, the switching power supply can provide a large output power, but the principle is relatively complicated, many components are used, the PCB board area accounts for a large proportion, MEC / EMI debugging is difficult, it is easily affected by strong magnetic interference, and the cost is high. [0004] The output power of linear power supply is directly related to the size, the principle is relatively simple, the use of few components, EMC / EMI is no problem, it is susceptible to strong magnetic interference, and the cost is relatively higher and slightly lower than that of switching power supply. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M7/217
CPCH02M7/217H02M1/0048Y02B70/10
Inventor 杨光秦艳刘春华郑继丰杨军莫晓晓朱明
Owner HANGZHOU SUNRISE TECH
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