Low-voltage power supply voltage-controlled oscillation filtering type power supply circuit

A power supply circuit and voltage technology, applied in electrical components, output power conversion devices, AC power input conversion to DC power output, etc., can solve problems such as poor stability, complex structure, and affecting the service life of electrical appliances, and achieve strength enhancement , Improve the load capacity and facilitate the effect of inspection and maintenance

Inactive Publication Date: 2018-01-23
CHENGDU JIESHENG TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the currently used low-voltage power supply voltage-controlled oscillation filter power supply circuit is not

Method used

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  • Low-voltage power supply voltage-controlled oscillation filtering type power supply circuit
  • Low-voltage power supply voltage-controlled oscillation filtering type power supply circuit

Examples

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Example Embodiment

[0018] Example

[0019] like figure 1 As shown, the low-voltage supply voltage-controlled oscillation filter type power supply circuit of the present invention is mainly composed of a pre-constant current source circuit, a transformer T, a diode rectifier U, an operational amplifier P1, a triode VT1, a triode VT2, a triode VT3, a field effect transistor Q, Inductor L, Capacitor C1, Capacitor C2, Capacitor C3, Capacitor C4, Capacitor C5, Resistor R1, Resistor R2, Resistor R3, Resistor R4, Resistor R5, Resistor R6, Resistor R7, Resistor R8, Resistor R9, Diode D1, Voltage Regulator Diode D2, diode D3 and diode D4 are formed. The resistance of the resistor R1 is 300Ω, the resistances of the resistors R2 to R4 are all 260Ω, the resistances of the resistors R5 to R7 are all 240Ω, and the resistances of the resistors R8 and R9 are both 220Ω. Meanwhile, the capacitances of the capacitors C1 and C2 are both 100 μF, the capacitances of the capacitors C3 and C4 are both 110 μF, and the...

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Abstract

The present invention discloses a low-voltage power supply voltage-controlled oscillation filtering type power supply circuit. The circuit is characterized by mainly comprising a front constant-current source circuit, a transformer T, a diode rectifier U, an operational amplifier P1, a triode VT1, a triode VT2, a triode VT3, a field-effect tube Q, an inductor L, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4, a capacitor C5, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a resistor R8, a resistor R9, a diode D1, a voltage-stabilized diode D2, a diode D3 and a diode D4. According to the invention, the circuit is simple in structure, convenient in inspection and maintenance, low in cost and wide in applicable range. Meanwhile, the circuit can be used for adjusting the output voltage when the output voltage fluctuates due to the fact that the voltage of the commercial power or the current of a load changes. As a result, the stability of an output power supply is ensured. The circuit is suitable for popularization and application.

Description

technical field [0001] The invention relates to a power supply circuit, in particular to a low voltage supply voltage controlled oscillation filter type power supply circuit. Background technique [0002] With the development of science and technology, electronic technology has developed rapidly, and the types of electronic products have become more and more abundant. Various electronic products have entered the families of ordinary people, making people's daily life inseparable from electronic products. At present, most household electricity uses 220V mains power, and low-voltage power supply voltage-controlled oscillation filter-type power supply circuits are required for voltage processing for electrical appliances with low voltage. Because the currently used low-voltage power supply voltage-controlled oscillation filter power supply circuit is not only complex in structure, but also poor in stability, it is easy to affect the service life of electrical appliances. Cont...

Claims

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Application Information

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IPC IPC(8): H02M7/217
Inventor 王丹
Owner CHENGDU JIESHENG TECH CO LTD
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