Invention Grant
- Patent Title: Low forward voltage rectifier using capacitive current splitting
- Patent Title (中): 使用电容电流分流的低正压整流器
-
Application No.: US13900451Application Date: 2013-05-22
-
Publication No.: US09042143B2Publication Date: 2015-05-26
- Inventor: Kyoung Wook Seok
- Applicant: IXYS Corporation
- Applicant Address: US CA Milpitas
- Assignee: IXYS Corporation
- Current Assignee: IXYS Corporation
- Current Assignee Address: US CA Milpitas
- Agency: Imperium Patent Works
- Agent Amir V. Adibi
- Main IPC: G05F1/46
- IPC: G05F1/46 ; H05K13/00 ; H02M3/335 ; H02M1/08 ; H02M1/00 ; H01L27/06

Abstract:
A Low Forward Voltage Rectifier (LFVR) circuit includes a bipolar transistor, a parallel diode, and a capacitive current splitting network. The LFVR circuit, when it is performing a rectifying function, conducts the forward current from a first node to a second node provided that the voltage from the first node to the second node is adequately positive. The capacitive current splitting network causes a portion of the forward current to be a base current of the bipolar transistor, thereby biasing the transistor so that the forward current experiences a low forward voltage drop across the transistor. The LFVR circuit sees use in as a rectifier in many different types of switching power converters, including in flyback, Cuk, SEPIC, boost, buck-boost, PFC, half-bridge resonant, and full-bridge resonant converters. Due to the low forward voltage drop across the LFVR, converter efficiency is improved.
Public/Granted literature
- US20130249529A1 LOW FORWARD VOLTAGE RECTIFIER USING CAPACITIVE CURRENT SPLITTING Public/Granted day:2013-09-26
Information query
IPC分类: