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Overcharge protection multi-circuit output power supply

A multi-channel output, overcharge protection technology, applied in the direction of output power conversion devices, electrical components, etc., can solve the problems of multi-channel output power supply over-voltage circuit, complexity, etc., to improve integration and stability, avoid damage, The effect of simplifying the circuit structure

Inactive Publication Date: 2017-03-22
成都尚智恒达科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of overvoltage and circuit complexity caused by the multi-channel output power supply due to excessive load

Method used

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  • Overcharge protection multi-circuit output power supply

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Embodiment 1

[0014] figure 1 Shown: a multi-channel output power supply with overcharge protection, including a transformer T1, a rectifier bridge D1, a voltage regulator chip set connected in sequence, and an overcharge protection circuit; the voltage regulator chip set includes a voltage regulator chip U1 and a voltage regulator chip U2 and voltage regulator chip U3, the positive output end of the rectifier bridge D1 is connected to the input end of the voltage regulator chip U1, and the output end of the voltage regulator chip U1 is used as the output end of the 12V voltage and connected to the input end of the voltage regulator chip U3; the rectifier bridge D1 The negative input terminal is connected to the input terminal of the voltage regulator chip U2, and the output terminal of the voltage regulator chip U2 is used as the voltage output terminal of -12V; the output terminal of the voltage regulator chip U3 is used as the output terminal of the 5V voltage; the overcharge protection c...

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PUM

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Abstract

Disclosed is an overcharge protection multi-circuit output power supply. The overcharge protection multi-circuit output power supply comprises a transformer T1, a rectifying bridge D1, a voltage-stabilizing chip group which are connected in sequence, and also comprises an overcharge protection circuit, wherein the voltage-stabilizing chip group comprises a voltage-stabilizing chip U1, a voltage-stabilizing chip U2 and a voltage-stabilizing chip U3; the positive output end of the rectifying bridge D1 is connected with the input end of the voltage-stabilizing chip U1; the output end of the voltage-stabilizing chip U1 is used as a 12V voltage output end and connected with the input end of the voltage-stabilizing chip U3; the negative input end of the rectifying bridge D1 is connected with the input end of the voltage-stabilizing chip U2; the output end of the voltage-stabilizing chip U2 is used as a minus 12V voltage output end; the output end of the voltage-stabilizing chip U3 is used as a 5V voltage output end; and the overcharge protection circuit also comprises a voltage-stabilizing tube D4 and a photoelectric tube D3. By adoption of the overcharge protection multi-circuit output power supply, requirements of different voltages can be satisfied, the circuit structure is simplified, and the integration degree and the stability of the circuit are improved.

Description

technical field [0001] The invention relates to the field of AC-DC conversion, in particular to an overcharge protection multi-output power supply. Background technique [0002] The power supply circuit is an essential part of the electronic circuit and is responsible for providing stable power supply voltage for all circuits and chips. Therefore, the size and stability of the voltage value provided by the power supply circuit will play a vital role in the operation of the entire circuit and even the equipment. role. In the current power supply circuit, some can realize multi-channel voltage output, but due to the interference between multiple outputs, there are defects in stability, and when the load is heavy, the ballast bridge is prone to breakdown and overvoltage. Damage to electrical equipment. Contents of the invention [0003] The purpose of the present invention is to solve the problem of overvoltage and complicated circuit caused by multi-channel output power su...

Claims

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Application Information

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IPC IPC(8): H02M1/32
CPCH02M1/32
Inventor 任无史晓莉
Owner 成都尚智恒达科技有限公司
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