High-power switching power source

A high-power switch and power supply technology, applied in the direction of output power conversion devices, electrical components, emergency protection circuit devices, etc., can solve the problems of difficult to know the specific location of internal faults in the system, difficult to assemble, and complicated wiring of switching power supplies, etc. Achieve the effect of remote diagnosis, convenient assembly and improvement of diagnosis efficiency

Active Publication Date: 2014-05-07
WUHU LION AUTOMOTIVE TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, there are usually a lot of signal connection lines arranged between the traditional PFC module and the DC-DC module, which are used to transmit the PFC fault information to the DC-DC module, which makes the internal w

Method used

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Embodiment Construction

[0024] The power factor correction (PFC) module in the present invention may be an active power factor correction (APFC) module or a passive power factor correction (PPFC) module. Here, the APFC module is taken as an example for illustration. However, it should be understood that the present invention is also applicable to PPFC modules.

[0025] figure 1 It is the circuit schematic diagram of the APFC module. Such as figure 1 As shown, the APFC module includes an APFC main circuit MC, an APFC control circuit CC and a wireless transmitting module RF1. Among them, the APFC main circuit MC includes a rectifier bridge 1, an interleaved energy storage inductor L1, an interleaved energy storage inductor L2, a rectifier diode D1, a rectifier diode D2, a filter capacitor C4, a MOS transistor Q1, and a MOS transistor Q2. Preferably, in order to realize the constant voltage output of the APFC, the main circuit MC of the APFC further includes a voltage closed-loop control sampling cir...

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Abstract

The invention discloses a high-power switching power source. The high-power switching power source comprises a PFC module and a DC-DC module. The PFC module comprises a first main circuit, a first control circuit and at least one of a first output current over-current protection circuit, an output voltage over-voltage and low-voltage protection circuit, a first over-temperature protection circuit and an output voltage over-voltage protection circuit. The DC-DC module comprises a second main circuit and a second control circuit. The PFC module comprises a first wireless transmitter module connected with the first control circuit. The DC-DC module comprises a second wireless transmitter module connected with the second control circuit. The PFC module and the DC-DC module receive and send information through the first wireless transmitter module and the second wireless transmitter module respectively. The communication among the PFC module, the DC-DC module and an external device can be achieved through the wireless transmitter modules, the external device can have remote access to the PFC module and the DC-DC module, and the whole switching power source can be conveniently maintained.

Description

technical field [0001] The invention relates to the technical field of switching power supplies, in particular to a high-power switching power supply utilizing wireless communication, including a power factor correction (PFC) module and a DC voltage to DC voltage (DC-DC) module. Background technique [0002] A high-power switching power supply circuit usually includes two modules: a front-end PFC (power factor correction) module and a back-end DC-DC (direct current voltage to direct current voltage) module. Wherein, the PFC module realizes the conversion of AC voltage to DC voltage, for example, converts 220V AC voltage into 380-390V DC voltage. The DC-DC module realizes the conversion of the DC voltage output by the PFC module to the actual required DC voltage, for example, converting 380V DC voltage to 290V-360V DC voltage. PFC modules usually have protection circuits such as over-current protection, over-voltage protection, under-voltage protection, and over-temperature ...

Claims

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Application Information

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IPC IPC(8): H02M1/42H02H7/10
CPCY02B70/10
Inventor 朱得亚
Owner WUHU LION AUTOMOTIVE TECH CO LTD
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