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On/off heat-relay-type control switch circuit

A technology for controlling switching and on-off, which is applied in the field of power supply to achieve the effect of suppressing noise

Inactive Publication Date: 2017-01-04
GUIZHOU PROVINCE ZUNYI CITY XINYANG ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method often requires the addition of an auxiliary winding and additional external components to compensate the feedback loop

Method used

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  • On/off heat-relay-type control switch circuit
  • On/off heat-relay-type control switch circuit

Examples

Experimental program
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Embodiment Construction

[0026] like figure 1 As shown, the on-off relay heat control switch circuit includes a power supply circuit powered by alternating current; it is characterized in that: the power supply circuit includes a rectifier bridge VD1-VD4, an integrated chip MIP0254SPIC1, an optocoupler IC2, a transformer T1, an inductor L1, Inductor 2 L2, capacitors 1 to 7 C1 to C7, resistor 1 R1, resistor 2 R2, resistor 3 R3, diode 5 VD5 and diode 6 VD6;

[0027] The AC power supply is connected to the AC terminals of the rectifier bridge VD1-VD4, the resistor one R1 is connected in series with the live wire of the AC power supply, the inductor one L1 is connected in series with the capacitor two C2, the resistor two R2 is connected in parallel with the inductor one L1, and the rectifier bridge The common cathode terminals of VD1-VD4 are connected to the inductor one L1 and the capacitor one C1, the common anode terminals of the rectifier bridge VD1-VD4 are connected to the capacitor one C1 and the c...

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PUM

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Abstract

The invention relates to a switch circuit applicable to an alternating current adapter, in particular to an on / off heat-relay-type control switch circuit. The on / off heat-relay-type control switch circuit comprises a power circuit powered by alternating current, wherein the power circuit comprises a current-rectifying bridge, an integrated chip MIP0254SP, an optical coupler, a transformer, an inductor 1, an inductor 2, capacitors 1-7, a resistor 1, a resistor 2, a resistor 3, a diode 5 and a diode 6. The on / off heat-relay-type control switch circuit does not need to carry out feedback loop compensation, and solves the technical problem that the conventional switch circuit needs to add an auxiliary winding and an additional external element for compensating a feedback loop.

Description

technical field [0001] The invention relates to a power supply suitable for an AC adapter, in particular to an on-off thermal relay control switch circuit. Background technique [0002] For general switching circuits, pulse width modulation is usually used for control, and the output voltage is used to control the duty cycle of the pulse through the feedback circuit, so as to achieve the purpose of regulating and stabilizing the output voltage. However, in this way, it is often necessary to add an auxiliary winding and additional external components to compensate the feedback loop. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an on-off thermal relay control switch circuit that does not require feedback loop compensation. [0004] In order to solve the problems of the technologies described above, the present invention provides the following technical solutions: [0005] The on-off relay heat control switch c...

Claims

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Application Information

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IPC IPC(8): H02M7/219H02M3/335H01G2/08
CPCH02M7/219H01G2/08H02M3/33523
Inventor 杨向东
Owner GUIZHOU PROVINCE ZUNYI CITY XINYANG ELECTRONICS TECH
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