Electric power conversion systems – Current conversion – Using semiconductor-type converter
Patent
1998-09-16
1999-08-31
Wong, Peter S.
Electric power conversion systems
Current conversion
Using semiconductor-type converter
363 41, 363 98, H02M 7537
Patent
active
059462086
ABSTRACT:
A PWM power converter includes a first switching branch of a first switching device and a first inductor between a positive source terminal and a load terminal and a second switching branch of a second inductor and a second switching device between the load terminal and a negative source terminal. To reduce noise and loss, the power converter is further provided with a series combination of third and fourth capacitors connected between the positive and negative source terminals, a series combination of first diode and first capacitor connected between a first junction point between the third and fourth capacitors and a second junction point between the first switching device and the first inductor, a series combination of second capacitor and second diode connected between a third junction point between the second inductor and the second switching device and a fourth junction point between the third and fourth capacitors, a series combination of third diode and third inductor connected between a fifth junction point between the first diode and the first capacitor and the positive source terminal, and a series combination of fourth inductor and fourth diode connected between the negative source terminal and a sixth junction point between the second capacitor and the second diode.
REFERENCES:
patent: 4333134 (1982-06-01), Gurwicz
patent: 5303140 (1994-04-01), Shimizu
Murai Yoshihiro
Yamamoto Yasuhiro
Han Y. J.
Kabushiki Kaisha Meidensha
Wong Peter S.
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