N. K. Poon, Senior Member, C. K. Tse
Abstract—A new converter topology is described for applications requiring very low output current ripple. The proposed converter consists of two asymmetric half-bridge converters whose output...
C. K. Tse, N. K. Poon, M. H. Pong, Y. M. Lai
of general impedance with simple dc/dc converters for power processing applications
N. K. Poon, Senior Member, C. P. Liu, Chi K. Tse, Senior Member
Abstract—This paper proposes a simple lumped circuit modeling approach for describing noncontact EMI coupling mechanisms in switching power converters. The resulting model assumes a minimum number...
Chi K. Tse, N. K. Poon, Senior Member, Y. M. Lai
Abstract—This paper presents an ac–dc converter topology for realization of power factor correction (PFC) voltage regulators for applications where the mains frequency is high and a low input...
A Constant-Power Battery Charger With Inherent Soft Switching and Power Factor Correction (2008)
N. K. Poon, Senior Member, Chi K. Tse, Senior Member
Abstract—A battery charging circuit, which operates as a constant power source, is proposed in this paper. By maintaining a constant output power throughout the charging process, the circuit...
A PFC Topology with Low Input Current Distortion Suitable for Aircraft Power Supplies (2008)
Chi K. Tse, N. K. Poon, Y. M. Lai, M. H. Pong
Abstract — This paper presents an AC-DC converter topology for realization of PFC converters for applications where the mains frequency is high and a low input current harmonics is required, e.g.,...
Techniques for Input Ripple Current Cancellation: Classification and Implementation (2008)
N. K. Poon, C. K. Tse, Senior Member, M. H. Pong, Senior Member
Abstract—Switching power supplies, due to their high-frequency switching operation, draw a substantial amount of input ripple current. Such ripple current manifests itself as electromagnetic...
Apparatus for noise current reduction in power converters (2005)
Liu, JCP, Liu, C P, Poon, NK, Poon, N K, Pong, MH
An apparatus for reducing electromagnetic interference due to common mode current in power converters is disclosed. Common mode current flowing through high parasitic capacitance on the load side...
High efficiency AC-DC converter with power factor corrector (2004)
Liu, JCP, Liu, J C P, Poon, NK, Poon, N K, Pong, MH
A power converter includes a boost converter, a DC/DC converter and a coupler chain. The boost converter receives a rectified AC input and generates a high voltage output. The boost converter...
Synthesis of input-rectifierless ac/dc converters (2004)
C. P. Liu, Chi K. Tse, N. K. Poon, Senior Member, Senior Member, ...
Abstract—This paper discusses the basic construction procedure and topological possibilities of creating ac/dc converters out of simple dc/dc converters. It is shown that two separately controlled...