A Power Supply Adaptive Circuit for High Power Pulse Load

Abstract

The invention discloses a power supply adaptability circuit of a high-power pulse load, including power matching networks, energy storage capacitor, A power supply is connected to the input end of thepower supply matching network, the power supply matching network is correspondingly connected to the pulse matching network through the energy storage capacitor, the pulse matching network is correspondingly connected to the high-power pulse load, and the pulse matching network comprises a power resistor and a power switch. The circuit is used to make the input of the power matching network showthe constant power load characteristic, to solve the problem of adaptability between the high power pulse load and the power supply. The pulse matching network is composed of power resistor and powerswitch transistor. The circuit structure is simple, and can be realized by using common components without complex control algorithm.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to a power supply adaptive circuit for high-power pulse loads. Background technique [0002] According to the requirements of the working mode, the power consumption of the high-power pulse load has the characteristics of wide frequency band and pulse change. At present, the power capacity of high-power pulse loads is increasing, while the power capacity of generators is limited. When the pulse change power capacity accounts for more than 40% of the generator output power capacity, and the pulse change frequency and generator closed-loop adjustment When the frequency coincides, it will affect the working stability of the generator closed-loop control system, which will cause the instability of the generator output voltage amplitude and the modulation coefficient exceeding the GJB181 standard. [0003] At present, the method of adding energy storage capacitors to the power syste...

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Problems solved by technology

At present, the power capacity of high-power pulse loads is increasing, while the power capacity of generators is limited. When the pulse change power capacity accounts for more than 40% of the generator output power capacity, and the pulse change frequency and generator closed-loop adjustment When the frequency coincides, it will affect the working stability of the generator closed-loop control system, which will cause the generator output voltage amplitude to be unstable and the modulation coefficient to exceed the GJB181 standard.

[0003] At present, the method of adding energy storage capacitors to the power system is used to reduce the slope of pulse power change of high-power pulse loads. However, due to factors such as volume and weight, the capacity of energy storage capacitors is far lower than the system demanded capacity, which cannot effectively solve the problem. The problem of generator modulation coefficient exceeding the standard caused by high-power pulse load

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