Dual power switching control circuit capable of delaying on and off

A dual power switching and control circuit technology, applied in circuit devices, emergency power arrangements, electrical components, etc., can solve problems such as being unsuitable for dual power systems, and achieve the effects of enhanced output power, strong capability, and prevention of malfunctions

Inactive Publication Date: 2013-11-20
TIANJIN CHENGJIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the dual power automatic transfer switch on the market is not suitable for the dual power system with distributed power

Method used

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  • Dual power switching control circuit capable of delaying on and off

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Embodiment Construction

[0014] The structure of the dual power switching control circuit with delay on and off of the present invention will be described in conjunction with the accompanying drawings.

[0015] The delay on-off dual power supply switching control circuit of the present invention has an input terminal and two output control terminals, and the high and low levels input by the input terminal control the two output terminals to be on or off; the output terminal conducts Generally, the control power switch is closed to turn on the power; the output terminal is cut off to control the power switch to be turned off and the power is cut off.

[0016] The delay on-off dual power supply switching control circuit structure of the present invention is: the circuit includes two voltage comparison circuits: one of the voltage comparison circuits uses a triode T 1 , voltage comparator IC 1 and transistor T 2 connected to each other, the triode T 1 Connected into a switch circuit, the input control...

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Abstract

The invention provides a dual power switching control circuit capable of delaying on and off. The circuit comprises two voltage comparison circuits, wherein one voltage comparison circuit is formed by a triode T1, a voltage comparator IC1 and a triode T2 which are mutually connected and set up, and takes computer I / O (Input / Output) input as an input control signal; and the other voltage comparison circuit is formed by a triode T3, a voltage comparator IC2 and a triode T4 which are mutually connected and set up in the same connecting way, and takes collector output of the triode T1 as an input control signal. The dual power switching control circuit capable of delaying on and off has the effects that the operations of switch off and switch on of two switching devices on a dual power can be controlled through potential change of one input control signal; and the switch off and the switch on of the switches can be locked through utilizing 'NOT gate' relation between a base electrode and a collector electrode of a switch tube. A control signal is anti-interference, so that the influence of base electrode end low potential fluctuation on the working condition of the corresponding triode is effectively avoided. The adjustable output power is enhanced, the usable range is wide, and a general industrial low-voltage relay can be controlled.

Description

technical field [0001] The invention relates to the field of power electronics technology and renewable energy application technology, and is a dual-power switching control circuit with time delay on and off designed for the special occasion where off-grid power generation of unstable renewable energy supplies power to continuous operation equipment. Background technique [0002] At present, there are many brands of dual power automatic transfer switches on the market, the principles are basically similar, and the signal detection, control unit and switch device are made as one. The working principle is to set the master and slave power supplies, the switch control system automatically detects the operating power supply voltage parameters, and switches automatically (or manually) according to the power supply voltage. It is suitable for occasions where the dual power supply voltage is stable, such as dual grid power supply, dual power supply of grid and self-contained diesel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J9/08
Inventor 叶会华潘雷陈子辉高滨杨龙陈建伟
Owner TIANJIN CHENGJIAN UNIV
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