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Inductive switch control circuit with wide input voltage range

A technology of inductive switch and input voltage, which is applied in the field of inductive switch control circuit, can solve the problems of poor sensitivity of inductive switch, inconvenience for users, unstable induction, etc., and achieve the effect of sensitive inductance, convenient use and stable work

Pending Publication Date: 2020-06-19
江门市蓬江区微博电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the voltage input range of the induction switch on the market is relatively narrow, and it can only be applied to the AC power supply. The voltage input range is generally AC90V~AC265V, and the sensitivity of the induction switch is poor, and the induction is unstable, which causes great inconvenience to the user.

Method used

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  • Inductive switch control circuit with wide input voltage range

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Embodiment Construction

[0014] 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 only some of the embodiments of the present invention, 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.

[0015] Such as figure 1 An induction switch control circuit with a wide input voltage range of the present invention is shown, including a rectifier bridge BR1, a control chip U1, a relay K1, an inductor CN1, a capacitor C1, a polar capacitor C2, a polar capacitor C3, and a polar capacitor C4 , diode D1, diode D2, diode D3, Zener diode Z1, inductor L1 and triode Q1, the first pin of the rectifier bridge BR1 is connected to the N line of the input...

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Abstract

The invention discloses an inductive switch control circuit with a wide input voltage range. The circuit comprises a rectifier bridge BR1, a control chip U1, a relay K1, an inductor CN1, a capacitor C1, a polar capacitor C2, a polar capacitor C3, a polar capacitor C4, a diode D1, a diode D2, a diode D3, a voltage stabilizing diode Z1, an inductor L1 and a triode Q1. A first pin of the rectifier bridge BR1 is connected with an N line of an input power supply through a protective tube F1; a second pin of the rectifier bridge BR1 is connected with a DRAIN pin of the control chip U1, a third pin of the rectifier bridge BR1 is connected with an L line of an input power supply, a fourth pin of the rectifier bridge BR1 is grounded, and a second pin of the rectifier bridge BR1 is connected with apositive electrode of the polar capacitor C4. The circuit is sensitive in induction and stable in work, the voltage input range is AC / DC24V-AC / DC265V, and the circuit is convenient to use.

Description

technical field [0001] The invention relates to a control circuit, in particular to an induction switch control circuit with a wide input voltage range. Background technique [0002] At present, the voltage input range of the induction switch on the market is relatively narrow, and it can only be used for AC power supply. The voltage input range is generally AC90V~AC265V, and the sensitivity of the induction switch is poor, and the induction is unstable, which causes great inconvenience to the user. Therefore, in order to avoid the shortcomings existing in the prior art, it is necessary to improve the prior art. Contents of the invention [0003] The object of the present invention is to overcome the disadvantages and deficiencies in the prior art, and provide an inductive switch control circuit with stable operation and convenient use with a wide input voltage range. [0004] The present invention is achieved through the following technical solutions: [0005] An induct...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03K17/94
CPCH03K17/94
Inventor 何昌亮
Owner 江门市蓬江区微博电子有限公司
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