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Load short circuit protection power circuit

A power circuit and load short-circuit technology, applied in the circuit field, can solve problems such as complex structure, unstable signal, and poor safety performance, and achieve the effects of simplifying the circuit structure, improving utilization rate, and improving safety

Pending Publication Date: 2018-05-11
CHANGZHOU STABLE ELECTRONICS SCI TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, most of the load short-circuit protection power circuit structures are relatively complicated, and the output signal is unstable. The short-circuit protection has only one fuse, which cannot completely protect all electronic components, and the safety performance is poor.

Method used

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  • Load short circuit protection power circuit

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Embodiment Construction

[0009] The preferred embodiments of the present invention are given below in conjunction with the accompanying drawings to describe the technical solution of the present invention in detail.

[0010] Such as figure 1 As shown, the load short-circuit protection power supply circuit of the present invention includes a live wire L, a neutral wire N, a ground wire FG, a triode Q1, an inductor L, a fuse FS, a thermistor RTH, an exciting coil B1, a transformer B2, a Zener diode ZD1, a first A resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, a tenth resistor R10, a Eleventh resistor R11, twelfth resistor R12, thirteenth resistor R13, fourteenth resistor R14, fifteenth resistor R15, sixteenth resistor R16, first capacitor C1, second capacitor C2, third capacitor C3, The fourth capacitor C4, the fifth capacitor C5, the sixth capacitor C6, the first ...

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Abstract

The invention discloses a load short circuit protection power circuit which comprises a fire wire, a zero wire, a ground wire, an earthing and a triode, a fourth resistor and a fifth resistor are connected in series, the fifth resistor and a sixth resistor are connected in parallel, the sixth resistor and a seventh resistor are connected in series, the seventh resistor and an eighth resistor are connected in parallel, the eighth resistor and a ninth resistor are connected in series, the ninth resistor and a tenth resistor are connected in parallel, the tenth resistor and an eleventh resistor are connected in series, the eleventh resistor and a third capacitor are connected in parallel, the third capacitor and a fifth diode are connected in series, the fifth diode and the earthing are connected in series, and a NO.1 pin of a transformer is connected with a first diode. Stable signals can be output through an LC vibrating circuit, the four diodes are used for rectification so as to simplify the circuit structure, the utilization rate of elements can be increased by matching the LC vibrating circuit with amplified electric signals through utilizing the triode, the safety of the circuit can be enhanced through double protection of circuit by a thermosensitive resistor and a fused wire.

Description

technical field [0001] The invention relates to a circuit, in particular to a load short-circuit protection power supply circuit. Background technique [0002] At present, most of the load short-circuit protection power circuit structures are relatively complicated, and the output signal is unstable. The short-circuit protection has only one fuse, which cannot completely protect all electronic components, and the safety performance is poor. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a load short-circuit protection power supply circuit, which outputs a stable signal through the LC oscillating circuit, uses four diodes for rectification processing to simplify the circuit structure, and uses the triode to cooperate with the LC oscillating circuit and amplify the electrical signal , improve the utilization rate of components, and double protect the circuit through thermistor and fuse, which improves the safety o...

Claims

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Application Information

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IPC IPC(8): H02H5/04
CPCH02H5/041H02H5/042
Inventor 包翔
Owner CHANGZHOU STABLE ELECTRONICS SCI TECH
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