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No-contact relay- magnetic relay switch driving circuit

A relay switch and drive circuit technology, which is applied in relays, electronic switches, circuits, etc., can solve the problems of performance degradation and lifespan reduction of relay semiconductor switching elements, and achieve the effects of preventing electric sparks, preventing instantaneous currents, and preventing erroneous operations

Inactive Publication Date: 2008-06-11
金仁植 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the performance of the connection part of the relay and the semiconductor switching element will deteriorate, and the life will also be shortened

Method used

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  • No-contact relay- magnetic relay switch driving circuit
  • No-contact relay- magnetic relay switch driving circuit
  • No-contact relay- magnetic relay switch driving circuit

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0022] The specific embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0023] image 3 Shown non-contact relay of the present invention-magnetic relay switch driving circuit block diagram, follow figure 1 In comparison, the main difference is that the microprocessor 42 provides sequentially controlled (by software) switching signals instead of the transistor circuit 12 for simultaneously opening / closing the non-contact relay 14 and the magnetic relay 16 .

[0024] Specifically, in the switch drive circuit of the present invention, a non-contact relay 44 and a magnetic relay 46 are connected between the load 48 and the power supply, where the two relays are connected in parallel. The control ports of the non-contact relay 44 and the magnetic relay 46 are connected to the microprocessor 42, and the output terminals of the microprocessor 42 connected to the non-contact relay 44 and the magnetic relay 46...

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PUM

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Abstract

No-contact relay-magnetic relay switch driving circuits connecting the no-contact relay and the magnetic relay between the power and load to use as the switching circuit. A microprocessor connecting to the no-contact relay and the magnetic relay and sending the first switch signal and the second signal to the open / close relay when the microprocessor receiving the open or close control signal. The opening or closing of the magnetic relay is always in the state of the no-contact relay opening so as to prevent the error operation and damage of the electronic component.

Description

technical field [0001] The present invention relates to a circuit of electromagnetic switching elements, in particular, to a circuit in which non-contact relays and magnetic relays are connected in parallel and controlled to obtain orderly power switching. Background technique [0002] Solid State Relay, or Solid State Relay, or SSR for short, is no different from ordinary relays, but it is made of semiconductor materials, which makes permanent life, noise-free, and high-speed operation possible. The non-contact relay generally includes a triac that acts as a switch and its control part, which constitutes a component of a photocoupler. Non-contact relays only play the role of on / off, so they are mainly used in places where on / off actions often occur. [0003] Non-contact relays are often used in electronic products as power switch circuits. At this time, non-contact relays will generate heat, and excessive heat will damage the triac, so this problem needs to be solved. The...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H47/02
CPCH01F29/02H01H47/001H01H47/02H03K17/00
Inventor 金仁植林采福
Owner 金仁植