Logic control circuit based hybrid trigger type power source for power system fault detection device

Abstract

The invention discloses a logic control circuit based hybrid trigger type power source for a power system fault detection device. The power source mainly comprises a transformer diode trigger circuit, a power logic control circuit, a crystal oscillating circuit and a buffering crystal oscillating circuit, wherein the power logic control circuit is connected with the transformer diode trigger circuit, and the crystal oscillating circuit and the buffering crystal oscillating circuit are connected with the transformer diode trigger circuit. The power source is characterized in that the power logic control circuit is formed by a power amplifier P1, an NAND gate IC1, an NAND gate IC2, an NAND gate IC3, an NAND gate IC4 and the like. The logic control circuit based hybrid trigger type power source has the advantages that circuit structures can be greatly simplified to reduce intrinsic and external radio-frequency interference for the circuits, and accordingly manufacturing cost and maintenance cost are greatly reduced; in addition, delay effects of traditional power circuits can be overcome effectively, and quality of the power source can be effectively improved.

Description

technical field [0001] The invention relates to a switching stabilized voltage power supply, in particular to a power supply for a hybrid trigger type power system fault detection device based on a logic control circuit. Background technique [0002] At present, with the rapid development of the power industry, the equipment that people use for power system fault detection has also developed greatly. Since the maintenance of the power system often involves voltage lines of hundreds of kilovolts or even millions of kilovolts, the maintenance lines are very long, so the power supply requirements for fault detection equipment are also very high. However, at present, the mobile power supply provided by the fault detection equipment has a large ripple coefficient, which not only produces radio frequency electromagnetic interference, but also has a complicated circuit structure, high maintenance and production costs, which largely limits The scope of use of fault detection equipm...

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the defects of large ripple coefficient, serious radio frequency interference, complex circuit and low efficiency existing in the current power supply for fault detection equipment, and to provide a power supply for a hybrid trigger type power system fault detection device based on a logic control circuit

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