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Double-power-supply multi-output direct-current voltage-stabilized power supply

A DC regulated power supply and multiple output technology, applied in circuit devices, emergency power supply arrangements, electrical components, etc., can solve the problem that the power supply cannot be used universally, and achieve the effect of reducing the size and weight of the equipment, facilitating maintenance, and improving the stability of the direction.

Inactive Publication Date: 2020-04-21
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

And different modules inside electronic products use different voltages, so the power supply of most electronic products cannot be used universally.

Method used

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  • Double-power-supply multi-output direct-current voltage-stabilized power supply

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Embodiment

[0024] Such as figure 1 , 2 As shown, a dual-power multi-channel output DC stabilized power supply of the present invention mainly includes step-down controllers U1, U2, field effect transistors Q1, Q2, DC input circuit, lithium battery, diodes D9, D7, patch LED D2, D4, regulator tubes D1, D3, resistors R4, R1, R2, varistors VDR1, VDR2, capacitors C1, C3, C2, C4, inductors L1, L2, fuses F1, F2, terminals P1, P2 composition. Field effect transistors Q1 and Q2 realize automatic switching between DC input and lithium battery power supply, step-down controllers U1 and U2 realize multi-channel decompression output, SMD LED D2 and D4 light up to indicate that the step-down output circuit is working normally, SMD LED D2 , D4 goes out to indicate that the step-down output circuit is damaged, and the varistors VDR1 and VDR2 ensure the safety of the load connected to the circuit.

[0025] When connecting, the DC input circuit is provided by the adapter to connect the positive pole of...

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PUM

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Abstract

The invention discloses a double-power-supply multi-output direct-current voltage-stabilized power supply. The double-power-supply multi-output direct-current voltage-stabilized power supply is mainlycomposed of direct-current input, a lithium battery, a control circuit and step-down multiplexed output. The direct-current input is connected with a mains supply AC220V; a direct-current voltage isoutputted to the control circuit; the output end of the lithium battery is connected with the control circuit; the input end of the control circuit is connected with the direct-current input and the lithium battery; the output end of the control circuit is connected with the step-down multi-output circuit; the control circuit realizes switching between the direct-current input and the power supplyof the lithium battery; the input end of the step-down multiplexed output is connected with the control circuit; and the output end of the step-down multiplexed output is connected with various loadswith different rated voltages. According to the double-power-supply multi-output direct-current voltage-stabilized power supply of the invention, automatic switching between the direct-current inputand the power supply of the lithium battery is realized by adopting a field effect transistor, and multiple paths of different voltages are obtained by adopting a step-down controller. The double-power-supply multi-output direct-current voltage-stabilized power supply has the advantages of simple structure, low cost and high reliability.

Description

technical field [0001] The invention relates to a power supply, in particular to a dual-power multi-channel output direct-current stabilized power supply. Background technique [0002] With the development of science and technology, electronic technology has developed rapidly, and the types of portable mobile electronic products are becoming more and more abundant. Various portable mobile electronic products have entered the lives of ordinary people, making people's daily life more and more inseparable. Turn on these electronics. Most portable mobile electronic products require dual power supply of built-in power supply and mains power. Moreover, different modules inside electronic products use different voltages, so the power supply of most electronic products cannot be used universally. In order to solve the above problems, a dual-power multi-output DC regulated power supply is designed. Contents of the invention [0003] The present invention provides a dual-power mu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J9/06
CPCH02J9/061
Inventor 许晓平张鑫
Owner KUNMING UNIV OF SCI & TECH
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