Rectifying circuit supporting hot plugging function
A rectifier circuit, hot-swappable technology, applied in the direction of circuit devices, output power conversion devices, AC power input conversion to DC power output, etc., can solve problems such as circuit inoperability and failure, and reduce input harmonic content Effect
Inactive Publication Date: 2016-12-07
成都英格瑞德电气有限公司
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Problems solved by technology
[0003] The purpose of the present invention is to provide a rectifier circuit supporting hot-swappable function, which solves the problem in the current rectifier circuit that once the input end of the rectifier circuit is not the required alternating current, the whole circuit will fail to work and break down. Even if the input terminal of the circuit is not the input AC voltage, the purpose of continuous power supply can be achieved through internal control to make the circuit work normally
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[0013] Such as figure 1 As shown, the present invention supports a rectifier circuit with a hot-swappable function, including three input terminals, three output terminals, three identical rectification modules and a neutral line N, and the three input terminals are input terminal U, The input terminal V, the input terminal W, and the three output terminals are respectively the output terminal BUS+, the output terminal BUS-, and the output terminal Z, and each of the three rectification modules is connected to one input terminal. The rectification module includes an inductor L1, an inductor L2, a capacitor C1, a capacitor C2, a capacitor C3, a diode D2, a diode D1, a diode D3, a diode D4, an IGBT Q1, and an IGBT Q2. The input terminal U is connected to the inductance L1 and the inductance L2 in turn. A branch is drawn between the inductance L1 and the inductance L2. The branch is connected to one end of the capacitor C1, and the other end of the capacitor C1 is connected to th...
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The invention discloses a rectifying circuit supporting a hot plugging function. By connecting an insulated gate bipolar transistor and a diode in parallel, circuit rectifying, circuit protecting and other functions are achieved, alternating current mains supply is converted into direct current voltage through a rectified three-phase circuit, and direct current power supplying can be automatically switched to when a rectifying module breaks down or alternating current is interrupted. The rectifying circuit has the advantages that the power factor is high, the harmonic current is small, by means of the parallel isolation design of alternating current input and direct current input, the function of alternating current power supplying or direct current power supplying switched due to faults can be achieved, and system down is avoided.
Description
technical field [0001] The invention relates to a rectifying circuit, in particular to a rectifying circuit supporting a hot plug function. Background technique [0002] A rectifier circuit is a circuit that converts AC power into DC power. Most rectification circuits are composed of transformers, rectification main circuits and filters. It is widely used in the fields of DC motor speed regulation, generator excitation regulation, electrolysis, electroplating and other fields. A rectifier circuit usually consists of a main circuit, a filter and a transformer. After the 1970s, the main circuit was mostly composed of silicon rectifier diodes and thyristors. The filter is connected between the main circuit and the load, and is used to filter out the AC component in the pulsating DC voltage. However, in the widely used rectifier circuits, the working state of the circuit cannot be controlled by the actual use conditions, so that once the working state of the rectifier circui...
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IPC IPC(8): H02M7/217H02M1/12H02J9/06
Inventor 胡裕凯
Owner 成都英格瑞德电气有限公司