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Load drive circuit and device

A load driving circuit and circuit technology, applied in the field of circuits, can solve problems such as unstable operation of the circuit system and low output voltage

Active Publication Date: 2020-06-23
湖南容创科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to provide a load driving circuit for the problem that when the current required by the load changes suddenly, it is easy to pull down its output voltage and make the entire circuit system unable to operate stably.

Method used

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  • Load drive circuit and device
  • Load drive circuit and device

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Embodiment Construction

[0036] 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 and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, and do not limit the protection scope of the present invention.

[0037] see figure 1 , a load driving circuit, comprising: a DC-DC circuit 10, a voltage stabilizing circuit 20.

[0038] The input end of the DC-DC circuit 10 and the input end of the voltage stabilizing circuit 20 are connected to the power supply 30, the detection end of the voltage stabilizing circuit 20 is connected to the output end of the DC-DC circuit 10, and the DC-DC The output end of the circuit 10 and the output end of the voltage stabilizing circuit 20 are connected to a load 50 .

[0039] The voltage stabilizing circuit 20 detects the voltage V0 output by ...

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PUM

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Abstract

The invention relates to a load drive circuit. The input ends of a DC-DC circuit and a voltage stabilizing circuit are accessed into a power supply; the detection end of the voltage stabilizing circuit is connected to the output end of the DC-DC circuit; the output end of the DC-DC circuit and the output end of the voltage stabilizing circuit are connected to a load; and the voltage stabilizing circuit detects the output voltage of the DC-DC circuit and controls states of electric energy provided for the load according to detected results. Thus, the problem, that the output voltage is easily pulled down to make a whole circuit system unable to stably operate when the current required by the load changes sharply in an instant, can be solved.

Description

technical field [0001] The invention relates to the field of circuits, in particular to a load driving circuit and device. Background technique [0002] As the application environment of the circuit becomes more and more complex, the drive circuit is used as an intermediate circuit between the main circuit and the control circuit to amplify the signal of the control circuit. The drive circuit should ensure that the device is fully turned on and reliably turned off to reduce the Conduction and switching losses, to achieve electrical isolation from the main circuit, with strong anti-interference ability and reliable protection ability. [0003] In the current drive circuit, when the current required by the load changes suddenly, the DC-DC circuit is required to have a large load capacity, and it is easy to pull down its output voltage so that the entire circuit system cannot operate stably. Contents of the invention [0004] Based on this, it is necessary to provide a load ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M3/156
CPCH02M3/156
Inventor 林勇周显宋唐桂青
Owner 湖南容创科技有限公司