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power supply circuit

A technology of a power supply circuit and a charging circuit, which is applied in the field of circuits

Active Publication Date: 2016-06-22
HUAWEI DIGITAL POWER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] It can be seen that the existing power supply circuit only has the function of output voltage, and a separate charging circuit needs to be set up to charge the battery pack.

Method used

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Embodiment Construction

[0067] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments . Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0068] Below to figure 2 As an example, a power supply circuit provided in Embodiment 1 of the present invention is described in detail. figure 2 It is a structural diagram of a power supply circuit provided by Embodiment 1 of the present invention. Such as figure 2 As shown, the power supply circuit includes:

[0069] A double-throw switch S, the fixed end of the double-throw switch S is connected to the connection point between the...

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Abstract

The invention relates to a power supply circuit. The power supply circuit includes: a double-throw switch. When the double-throw switch is connected to the first selection terminal and the commercial power supplies a positive voltage to the power supply circuit, the first thyristor, the first inductor, and the first The switch tube, the first freewheeling diode and the first capacitor form a rectifier circuit for output voltage; the first thyristor, the third switch tube, the second inductor, the second switch tube and the third thyristor form a charging circuit, for charging the battery pack.

Description

technical field [0001] The invention relates to the field of circuits, in particular to a power supply circuit. Background technique [0002] The existing power supply circuit such as figure 1 As shown, the fixed end of the double-throw switch S is connected to the first end of the inductor L1, the second end of the inductor L1 is connected to the connection point between the positive pole of the thyristor V1 and the negative pole of the thyristor V2, and the negative pole of the thyristor V1 is connected to the positive pole of the switch tube Q1 It is connected to the connection point of the positive pole of the freewheeling diode D1, the negative pole of the freewheeling diode D1 is connected to the first terminal of the capacitor C1, the second terminal of the capacitor C1 is connected to the negative pole of the switching tube Q1, and the positive pole of the thyristor V2 is connected to the terminal of the switching tube Q2 The negative pole is connected to the connec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/02H02M7/12
Inventor 刘培国程洋蔡米塔
Owner HUAWEI DIGITAL POWER TECH CO LTD