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Temperature adjusting circuit for electric appliances

A technology for adjusting circuits and power circuits, which is applied in the field of temperature adjusting circuits of electrical appliances, and can solve the problems of occupying the area of ​​the stove and being uneconomical.

Inactive Publication Date: 2015-02-11
常州浩瀚万康纳米材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to heat small cooking utensils, electricity users have to buy an additional small electric stove, which is uneconomical and takes up the area of ​​the stove

Method used

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  • Temperature adjusting circuit for electric appliances
  • Temperature adjusting circuit for electric appliances

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Embodiment Construction

[0014] refer to figure 1 , a temperature adjustment circuit of an electrical appliance of the present invention, comprising a power supply circuit for stepping down and rectifying alternating current; at the output end of the power supply circuit; and a power regulating circuit electrically connected to the output end of the zero-crossing detection circuit. Load power control.

[0015] refer to figure 2 , the power supply circuit includes a transformer T, a first diode VD1, the two ends of the transformer T are respectively connected to the anode terminals of the first diode VD1 and the second diode VD2, the cathode terminal of the first diode VD1 and The cathode terminal of the second diode VD2 is connected. The power supply circuit also includes a filter capacitor C, one end of the filter capacitor is connected to the cathode end of the first diode, and the other end of the filter capacitor is grounded.

[0016] refer to figure 2 , the zero-crossing detection circuit ...

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PUM

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Abstract

The invention relates to a temperature adjusting circuit for electric appliances. The temperature adjusting circuit comprises a power source circuit used for realizing voltage reduction and rectification of an alternating current, a zero-crossing detection circuit which is used for generating a pulse DC voltage and carrying out zero-crossing detection on the pulse DC voltage and is connected with an output end of the power source circuit, and a power adjusting circuit which is electrically connected with an output end of the zero-crossing detection circuit, wherein the power adjusting circuit outputs high-level trigger pulses to control a load power after carrying out counting and pulse distribution of zero-crossing pulses outputted by the zero-crossing detection circuit. The temperature adjusting circuit has advantages of simple structure and convenient use.

Description

technical field [0001] The invention relates to a temperature adjustment circuit of an electric appliance. Background technique [0002] At present, the single-wire stepless temperature regulation circuit for household electric furnaces on the market uses a heating wire as the load of the thyristor voltage regulator, and its power can be adjusted within the range of tens of watts to several kilowatts. But when this kind of electric furnace heats small cooking utensils, the surrounding gaps are large, the heat dissipation is large, and the energy consumption is also large. For heating small cooking utensils, electricity users have to buy an additional small electric stove, which is uneconomical and takes up the area of ​​the stove. Contents of the invention [0003] In view of the above technical problems, the main purpose of the present invention is to provide a temperature adjustment circuit for electric appliances with simple structure and convenient use. [0004] Temp...

Claims

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Application Information

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IPC IPC(8): H02M9/06
Inventor 范宏伟
Owner 常州浩瀚万康纳米材料有限公司
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