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DC Power Pulse Load Adapter

A technology of DC power supply and pulse load, applied in the field of electronics, can solve problems such as heavy-load start-up and heavy-load open circuit, and achieve the effect of solving the current impact problem and solving the phenomenon of voltage mutation

Active Publication Date: 2017-06-23
成都新欣神风电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The purpose of the present invention is to provide a DC power supply pulse load adapter to solve the problem of heavy load start-up and heavy load open circuit when the DC power supply is connected to the load

Method used

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  • DC Power Pulse Load Adapter
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  • DC Power Pulse Load Adapter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Embodiment 1 provides a DC power pulse load adapter. Such as figure 1 As shown, it includes DC power supply 1, current sampling circuit 2, BUCK circuit, freewheeling circuit 3, current error amplifier circuit 4, voltage sampling circuit 5, voltage error amplifier circuit 6, monostable circuit 7, reference source 8, reference Source 9, PWM controller 10.

[0048] The current sampling circuit 2 is connected in series between the positive pole of the DC power supply and the input terminal of the power switch of the BUCK circuit, and the output terminal of the current sampling circuit 2 is connected with the inverting input terminal of the current error amplifier circuit 4 . Specifically, in this embodiment, the current sampling circuit 2 includes a current transformer, a load resistor, and a bridge rectifier. One end of the current transformer is connected to the positive pole of the DC power supply 1, and the other end is connected to the input end of the power switch Q1...

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PUM

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Abstract

The invention relates to the technical field of electronics, provides an adapter for pulse loads of direct-current power supplies and aims to solve the problems of heavy load starting and heavy load opening existing when a direct-current power supply is connected with a load. The adapter comprises the direct-current power supply, a current sampling circuit, a BUCK circuit, a follow current circuit, a current error amplification circuit, a voltage sampling circuit, a voltage error amplifying circuit, a monostability circuit, a reference source and a PWM (pulse width modulation) controller. With the adoption of the technical scheme, the adapter solves a current impact problem caused when the direct-current power supplies are started and a voltage leap problem caused during load opening are solved, and the adapter is applicable to pulse loads of various direct-current power supplies.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to a DC power pulse load adapter. Background technique [0002] Since the 1990s, with the continuous improvement of the reliability of power semiconductor switches and the emergence of technologies such as PWM, SPWM, and SVPWM, switching power supplies have been widely used in places with relatively stable load characteristics, such as low-power equipment, portable tools, and instruments. Wait. Due to the nonlinear characteristics of the switching power supply itself, it will cause various problems when it is applied in places with unstable load characteristics, such as arc extinguishing problems in magnetron sputtering, pulse backpressure problems in laser pumping, commutation dragging, etc. Due to the existence of the above problems, it is difficult to apply switching power supply to places with unstable load characteristics such as large and medium-sized power supply fields....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M3/10
Inventor 范承张天华刘健王勇陈昆
Owner 成都新欣神风电子科技有限公司