Power switch

A power switch and electronic switch technology, applied in electronic switches, electrical components, transistors, etc., can solve the problems of difficult switching speed and large switching delay of solid-state relays, and achieve good anti-noise characteristics

Pending Publication Date: 2019-09-24
MACMIC SCIENCE & TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention proposes a power switch to solve the problems of large switching delay and switching speed difficult to meet the fast switching of large current in the existing solid state relay. This power switch has excellent switching characteristics and can realize fast turn-on and turn-off

Method used

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Embodiment Construction

[0040] In order to make the technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0041] see figure 1, the present embodiment provides a power switch including a control circuit, a photoelectric conversion circuit, a drive circuit, a charge storage circuit and a charge replenishment circuit.

[0042] Control circuit

[0043] The control circuit includes a pulse trigger circuit and a state latch circuit, see figure 2 , the input terminal of the voltage stabilizing circuit receives the input control signal, the output terminal of the voltage stabilizing circuit is connected to the input terminal of the pulse trigger circuit, and the state latch circuit and the protection circuit are r...

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PUM

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Abstract

The invention provides a power switch, and relates to the power switch technology field. The power switch comprises a control circuit, a photoelectric conversion circuit, a driving circuit, a charge storage circuit and a charge supplementing circuit. The power switch disclosed by the invention can meet the requirements of a quick switch, is high in anti-noise performance of an input signal and wide in input voltage range and is suitable for the occasions with wide voltage input, also has the overheating and overcurrent protection, adopts photoelectric isolation between input and output, and is high in insulation voltage.

Description

technical field [0001] The invention relates to the technical field of intermediate relays, in particular to a power switch. Background technique [0002] Intermediate relays are generally classified into two categories: electromechanical relays and solid-state relays. Mechanical relays are generally composed of relay coils and moving and static contacts. The moving contacts act through the electromagnetic attraction force of the relay coil to realize the connection and disconnection of the circuit. There is mechanical movement, when the current reaches a certain level, the contacts will spark, the price is cheap and the structure is simple, but the spark and mechanical movement during the action will affect its life. [0003] With the development of electronic technology, solid-state relays have gradually replaced electromechanical relays. Solid-state relays are relays that have no mechanical movement and no moving parts. They are non-contact switches that are all composed ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03K17/041H03K17/081H03K17/16H03K17/687
CPCH03K17/04106H03K17/08104H03K17/162H03K17/687H03K2017/0806H03K2217/0081
Inventor 张兴华韩安东赵善麒
Owner MACMIC SCIENCE & TECHNOLOGY CO LTD
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