Driving circuit

A driving circuit and circuit technology, applied in the field of electronics, can solve problems such as inability to drive relays to work, and achieve the effects of low cost and simple circuit structure

Active Publication Date: 2015-07-15
OCEANKING DONGGUAN LIGHTING TECH +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When the voltage of the power supply is lower than the operating voltage of the relay, it is usually impossible to drive the relay to work

Method used

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Embodiment Construction

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0037] See figure 1 , is a schematic diagram of a module structure of a drive circuit according to an embodiment of the present invention. The drive circuit of the present invention can still drive the relay to work when the voltage of the power supply is lower than the working voltage of the relay. It includes: a first switch circuit 1, a voltage divider circuit 2, an energy storage circuit 3, a relay 5, a first unidirectional conduction circuit ...

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Abstract

The invention discloses a driving circuit which comprises a first switching circuit, a voltage dividing circuit, an energy storing circuit, a relay, a first one-way conducting circuit, a second one-way conducting circuit and a second switching circuit. The first end of the first switching circuit is connected with a power supply, the second end of the second switching circuit is connected with the second end of the voltage dividing circuit, the third end of the first switching circuit is connected with the ground, the first end of the voltage dividing circuit is connected with the power supply, the second end of the voltage dividing circuit is connected with the first end of the energy storing circuit, the second end of the energy storing circuit is connected with the first end of the first one-way conducting circuit, the second end of the first one-way conducting circuit is connected with the ground, the first end of the second one-way conducting circuit is connected with the first end of the first one-way conducting circuit, the relay is connected with the two ends of the second one-way conducting circuit, the first end of the second switching circuit is connected with the power supply, the second end of the second switching circuit is connected with the first end of the energy storing circuit, and the third end of the second switching circuit is connected with the second end of the second one-way conducting circuit. When voltage of the power supply is lower than work voltage of the relay, the relay can still be driven to work.

Description

technical field [0001] The present invention relates to the field of electronic technology, in particular to a driving circuit. Background technique [0002] With the development of electronic technology, electronic products have been widely used. Among them, the relay is an automatic switching element with isolation function. When the voltage across the coil of the relay reaches the working voltage value, the coil of the relay is pulled in, and the switch of the relay is controlled to switch between open and closed. This characteristic of the relay The relay is usually used in the automatic control circuit, and plays the role of automatic adjustment, safety protection or conversion circuit in the circuit. [0003] When the voltage of the power supply is lower than the operating voltage of the relay, it is usually impossible to drive the relay to work. Contents of the invention [0004] The technical problem to be solved by the embodiments of the present invention is to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05F1/46
Inventor 周明杰刘金财
Owner OCEANKING DONGGUAN LIGHTING TECH
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