Electric energy meter external circuit breaker control system and its psr flyback switching power supply circuit
A technology for external circuit breakers and power circuits, applied in electrical components, output power conversion devices, AC power input conversion to DC power output, etc., can solve the problems of low reliability and high cost of the control system, and reduce complexity , Reliability improvement, cost reduction effect
Active Publication Date: 2021-06-11
SUZHOU FUTURE ELECTRICAL APP
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Problems solved by technology
[0005] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a novel electric energy meter external circuit breaker control system and its PSR flyback switching power supply circuit, which is used to solve the control of the electric energy meter external circuit breaker in the prior art. Problems such as low system reliability and high cost
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[0025] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, in the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.
[0026] It should be noted that the diagrams provided in the following embodiments are only schematically illustrating the basic ideas of the present invention, and only the components related to the present invention are shown in the diagrams rather than the number, shape and shape of the compo...
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According to the current power consumption requirements of the entire controller of the electric energy meter external circuit breaker of the State Grid Corporation of China, the present invention designs a new electric energy meter external circuit breaker control system and its PSR flyback switch power supply circuit, wherein the PSR flyback switch The power circuit mainly includes: PSR power chip and its application circuit. In particular, the PSR power supply chip is integrated with an AC / DC switching power supply and a MOSFET tube, and the drain of the MOSFET tube forms the SW pin of the PSR power supply chip. The design scheme of the invention has simple structure and low cost, and effectively achieves the technical effect of ultra-low power consumption.
Description
technical field [0001] The invention relates to the field of an external circuit breaker for an electric energy meter, in particular to an ultra-low power consumption external circuit breaker control system for an electric energy meter and a PSR flyback switching power supply circuit adopted therefor. Background technique [0002] In order to improve the cost control reliability of the electricity consumption information collection system and ensure the safe and stable operation of the power system, the State Grid Corporation of China has formulated a special standard for the external circuit breaker of the electric energy meter. The external circuit breaker of the electric energy meter has all the performances of the circuit breaker and can carry out the remote opening control of the arrears and the closing control of the payment through a control line. The arrears opening and payment closing of the external circuit breaker of the electric energy meter adopts the level cont...
Claims
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IPC IPC(8): H02M7/217
CPCH02M7/217
Inventor 周峰谈春华
Owner SUZHOU FUTURE ELECTRICAL APP