Title :
Feedforward ripple cancellation for a full-bridge converter
Author :
Jackson, Deron K. ; Leeb, Steven B.
Author_Institution :
Lab. for Electromagn. & Electron. Syst., MIT, Cambridge, MA, USA
fDate :
6/22/1905 12:00:00 AM
Abstract :
This paper presents a feedforward ripple cancellation technique for use with a full-bridge DC-DC converter. The full-bridge is used to energize an inductive coupling that serves as an isolating connector in a battery charging system. Feedforward ripple cancellation prevents large AC currents from flowing into the battery terminals in response to unavoidable AC ripple on the inverter input bus voltage. A computationally inexpensive technique for implementing ripple cancellation using either analog or digital hardware is described and demonstrated on a 1500 watt hardware prototype
Keywords :
DC-DC power convertors; PWM power convertors; battery chargers; bridge circuits; electric current control; feedforward; phase shifters; power factor correction; voltage control; 1500 W; PWM voltage control; analog hardware; battery charging system; battery terminals; digital hardware; feedforward ripple cancellation; full-bridge DC-DC converter; inductive coupling energisation; inverter input bus voltage; isolating connector; phase shifted converter; ripple current; unavoidable AC ripple; Batteries; Connectors; DC-DC power converters; Frequency; Hardware; Inverters; Prototypes; Pulse width modulation; Rectifiers; Voltage;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 2000. APEC 2000. Fifteenth Annual IEEE
Conference_Location :
New Orleans, LA
Print_ISBN :
0-7803-5864-3
DOI :
10.1109/APEC.2000.826126
