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Rectifier with Voltage Detection

A voltage detector and rectifier technology, applied in electrical components, high-efficiency power electronic conversion, output power conversion devices, etc., can solve the problems of complicated selection and loss of overcurrent protection devices

Active Publication Date: 2018-10-19
INFINEON TECH AUSTRIA AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Complicates the selection of overcurrent protection devices such as fuses and circuit breakers when high inrush currents must be tolerated
When an inrush current flows, the overcurrent protection must react quickly to an overload or short circuit, but must not interrupt the circuit
In some cases this becomes necessary using additional measures (e.g. series resistors) to limit the inrush current, which cause additional losses

Method used

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  • Rectifier with Voltage Detection
  • Rectifier with Voltage Detection
  • Rectifier with Voltage Detection

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0017] For simplicity, all transistors used in the exemplary two-line full-wave rectifier described below are metal oxide semiconductor field effect transistors. Alternatively, these transistors may be bipolar transistors, junction field effect transistors, silicon carbide transistors, gallium nitride transistors, or any other suitable transistors.

[0018] like figure 1 As shown in , the exemplary bridge rectifier BRB1 includes four rectification paths A, B, C and D connected between two AC input paths AC1 and AC2 (connected to each of the AC sources V) and each of the two DC output paths DC1 and DC2 (connected to the load L). In particular, rectification path A is connected between input path AC1 and output path DC1, rectification path B is connected between input path AC2 and output path DC1, and rectification path C is connected between input path AC1 and output path DC2 , and the rectification path D is connected between the input path AC2 and the output path DC2. figu...

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PUM

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Abstract

A rectifier with voltage detection is disclosed. The rectifier includes two input paths configured to receive an AC input voltage and two output paths configured to provide a DC output voltage. A switch-mode rectification path is connected between one of the input paths and one of the output paths and comprises at least two semiconductor elements having controllable paths; the controllable paths being connected in series with each other. An auxiliary output node is deployed between the controllable paths of the two semiconductor elements in the rectification path and provides the auxiliary node voltage. The controllable output path is connected downstream of one of the two output paths and comprises a semiconductor element having a controllable path, wherein the controllable path of the semiconductor element of the controllable output path is represented by a signal representing the auxiliary node voltage to control.

Description

technical field [0001] The present disclosure relates to full wave rectifiers, and more particularly to bridge rectifiers. Background technique [0002] A bridge rectifier is a type of electrical circuit in which four rectification paths are connected between each of two alternating current (AC) input paths and each of two direct current (DC) output paths for any An input of one polarity (half wave) provides an output of the same polarity. The rectification path typically includes one or more diodes which are rather inefficient and significantly affect the overall efficiency of the power conversion from AC energy to DC energy. The inefficiency arises from the diode's forward voltage, which can reach 1 volt or more. Since at least two diodes are connected in series at any time during operation of the bridge rectifier, in a common power supply circuit with an input voltage between approximately 85 and 265 volts, the voltage loss caused by the diodes may be approximately Bet...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M7/217
CPCH02M1/083H02M1/32H02M1/36H02M1/4225H02M7/219Y02B70/10H02M1/0032H02M1/0006H02M7/2195H02M7/217
Inventor J.巴伦舍恩A.毛德
Owner INFINEON TECH AUSTRIA AG