Automatic on-off bath heater control system based on overcurrent protection circuit

An overcurrent protection circuit and control system technology, applied in the field of electronics, can solve the problems of unstable output drive current and inability to control the temperature of Yuba, and achieve the effects of ensuring stability, improving stability and preventing damage to the load.

Inactive Publication Date: 2016-08-24
CHENGDU FEIKAIRUI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the defect that the Yuba control system in the prior art cannot control the temperature of the Yuba, and at the same time, the output driving current is unstable, and provides a self-opening and closing Yuba control system based on an overcurrent protection circuit. system

Method used

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  • Automatic on-off bath heater control system based on overcurrent protection circuit
  • Automatic on-off bath heater control system based on overcurrent protection circuit

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Embodiment

[0019] Such as figure 1 As shown, the present invention mainly consists of a control chip U, a temperature controller, a triode VT2, a resistor R5, a resistor R6, a resistor R8, a resistor R9, a polar capacitor C4, a polar capacitor C5, a Zener diode D3, and an overcurrent protection circuit. Transistor switch buffer circuit, and base drive circuit.

[0020] During implementation, the negative pole of the polarity capacitor C5 is connected to the collector of the triode VT2 through the resistor R9, and its positive pole is connected to the COV pin of the control chip U through the resistor R6. The positive electrode of the polarity capacitor C4 is connected to the RC pin of the control chip U after passing through the resistor R5, and its negative electrode is connected to the FB pin of the control chip U. The N pole of the Zener diode D3 is connected to the VDD pin of the control chip U, and its P pole is connected to the RC pin of the control chip U through the resistor R8....

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Abstract

The invention discloses an automatic on-off bath heater control system based on an overcurrent protection circuit. The automatic on-off bath heater control system is characterized by being mainly composed of a control chip U, a temperature controller, an audion VT2, a polar capacitor C5, a polar capacitor C4, a voltage stabilizing diode D3, a transistor switch buffering circuit connected between the temperature controller and the control chip U in series, a base electrode driving circuit connected with the control chip U and the overcurrent protection circuit connected between the base electrode driving circuit and an ORV pin of the control chip U in series. Temperature of a heating lamp of a bath heater can be controlled, namely connection and disconnection of working currents of the bath heater can be controlled, and therefore the temperature of the bath heater can be controlled by the control system. Meanwhile, instant large currents of the input currents can be inhibited, the currents are kept stable, stable driving currents can be output, and therefore stability of bath heater heating temperature is ensured.

Description

technical field [0001] The invention relates to the field of electronics, specifically, a control system for a self-opening and closing bathroom heater based on an overcurrent protection circuit. Background technique [0002] Yuba has been widely accepted and adopted by people because of its fast heating, environmental protection, and convenient use. However, the control system of the Yuba currently used by people cannot control the temperature of the Yuba, resulting in an excessively high temperature in the bathroom, which causes people to often suffer from hypoxia due to high temperature when using the Yuba. At the same time, the existing Yuba control system still has the problem of unstable output driving current, which leads to unstable heating temperature of Yuba's warming lamp, thus affecting the service life of Yuba's warming lamp. [0003] Therefore, it is urgent to provide a Yuba control system that can not only control the temperature of the Yuba but also ensure a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24D19/10
CPCF24D19/1096
Inventor 李云粉
Owner CHENGDU FEIKAIRUI TECH CO LTD
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