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Power module clock synchronization circuit

A power module and clock synchronization technology, which is applied in the direction of electrical components, output power conversion devices, etc., can solve problems such as difficult implementation and complex circuits, and achieve high reliability, simple circuit drive, and avoid false conduction effects

Active Publication Date: 2018-06-12
BEIJING SATELLITE MFG FACTORY
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Problems solved by technology

[0003] The traditional clock synchronization circuit is realized by digital circuit, the circuit is complicated and difficult to realize, and it is urgent to improve the traditional circuit

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  • Power module clock synchronization circuit

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Embodiment Construction

[0020] The basic idea of ​​the present invention is: a power module clock synchronization circuit, including: a PWM controller, a pulse input circuit and a pulse output circuit in each power module, and the PWM controller, pulse input circuit and pulse output of the power module The circuit forms a power module group; connect at least two power module groups in parallel in the circuit. Compared with the prior art, this parallel power supply clock synchronization method adopts logic level MOS transistors for clock synchronization in the pulse input circuit, which effectively enhances the circuit's anti-interference ability. The clock synchronization circuit is realized by discrete components such as diodes and MOS tubes, with simple circuit, high reliability, low cost and strong practicability.

[0021] The present invention connects the pulse input circuit and the pulse output circuit to each power module PWM controller, the power module PWM controller, the pulse input circuit an...

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Abstract

The invention discloses a power module clock synchronization circuit, and the circuit comprises two power modules. The interior of each power module is provided with a PWM controller, a pulse input circuit, and a pulse output circuit, wherein the PWM controllers, the pulse input circuits and the pulse output circuits of the power modules form power module groups. At least two power module groups are connected in a circuit in a parallel manner. A parallel power clock synchronization method, compared with the prior art, employs a logic level MOS tube for clock synchronization in the pulse inputcircuits, and effectively improves the anti-interference capability of the circuit. The circuit is implemented through employing a diode and the MOS tube, is simple, is high in reliability, is low incost, and is high in practicality.

Description

Technical field [0001] The invention relates to the technical field of power modules, in particular to a power module clock synchronization circuit. Background technique [0002] Switching power supplies have now been widely used in various fields. In order to achieve greater power output, multiple power supply modules need to be used together. Such multiple power supply module systems work at their respective clock frequencies, and the work of each module is not synchronized. Electromagnetic interference is very serious. In order to reduce system interference, each module must work synchronously, and a clock synchronization circuit needs to be added to each module. [0003] The traditional clock synchronization circuit is realized by a digital circuit, and the circuit is complicated and not easy to realize, and it is urgent to improve the traditional circuit. Summary of the invention [0004] The technical problem solved by the present invention is to overcome the shortcomings of ...

Claims

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Application Information

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IPC IPC(8): H02M1/00
CPCH02M1/00H02M1/0041
Inventor 张国帅支树播王楚雷卫军陈永刚万成安
Owner BEIJING SATELLITE MFG FACTORY
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