Title :
Optimizing the design of switch-mode power supplies with battery back-up and power factor correction
Author :
Lee, Y.S. ; Siu, K.W. ; Liu, Xuan-Zhong
Author_Institution :
Dept. of Electron. Eng., Hong Kong Polytech. Univ., Hong Kong
fDate :
30 Apr-3 May 1995
Abstract :
Regulatory standards such as IEC555-2 require switch-mode power supplies (SMPS) to have a high power factor. The addition of a power-factor-correction (PFC) pre-regulator to an SMPS may enable it to meet the regulatory requirement. But this is, in most cases, not an optimum design. Based on the example of a power supply system for telecommunication applications, a method to optimize the overall design is presented in this paper. In the new design the need for a separate SMPS (in addition to the PFC pre-regulator) is eliminated. Computer simulations are presented to show that the new design approach is possible and practical
Keywords :
feedforward; power factor correction; switched mode power supplies; telecommunication power supplies; voltage regulators; IEC555-2; SMPS; battery back-up; power factor correction; pre-regulator; switch-mode power supplies; telecommunication applications; Batteries; Circuits; Design optimization; Emergency power supplies; Filtering; Power factor correction; Reactive power; Regulators; Switched-mode power supply; Voltage;
Conference_Titel :
Circuits and Systems, 1995. ISCAS '95., 1995 IEEE International Symposium on
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-2570-2
DOI :
10.1109/ISCAS.1995.523827
