A new kind of step-up converter is hereby presented. It consists of a diode, an auxiliary switch, and a coupled winding to the boost inductor as in the conventional boost converter. By transferring the boost-inductor current to the coupled winding in a time of very short period, the ...
Other Parts Discussed in Thread: TPS61090 Hi All, I'm looking for boost converter that can meet following requirement. Vin = 3.0V to 4.2V (Li-Ion 1cell
For use in a boost converter having a boost inductor coupled between an input and an output of the boost converter and an output capacitor coupled between rails of the output, an energy storage circuit for, and method of, extending a holdup time of the boost converter. In one embodiment, ...
A study is presented of a DC-DC boost converter whose output voltage is controlled by naturally sampled constant-frequency PWM operating in both continuous and discontinuous mode. For certain values of the circuit parameters, instability occurs. Moreover, nonlinearities may produce bifurcations and chao...
Power factor correction boost converter with continuous, discontinuous, or critical mode selection In a method and apparatus for controlling power factor correction in mixed operation modes, a frequency of the input voltage is obtained by detecting the zero crossing points of the input voltage. A pea...
aTo avoid any influence of the unknown line impedance on the basic operation of the boost PFC converter, it is necessary to insert the input capacitor C (Fig. 1) with an impedance much smaller than the impedance of the inductor L at the switching frequency. 要避免其中任一在未知的线路...
SP Pitchai,B Umamaheswari - 《American Journal of Applied Sciences》 被引量: 6发表: 2006年 A Novel Boost PFC Converter with Wide Load Range To extend the load variation range of Boost PFC converter operating in DCM and CCM,a novel PFC converter operating in pseudo continuous conduction mode...
The backup operation is effective only when the buck-boost controller is in FPWM mode. To activate this FPWM function, the mode pin of the controller must be set high. If the pin is not set high, the converter runs in PSM mode (forward operation). For Battery Backup mode, the backup...
All considerations are experimentally illustrated by a 6-kW, 250-kHz boost converter (300 V/600 V). A special solution for the base-drive unit, based on the dual-source driver concept, is also shown in this paper. The performance of this driver and the current sharing of the BJTs are ...
Nonlinearity is inherent in every switching power converter. This paper develops a parameter selection method for a current-mode controlled boost converter. The region of operation is quantified deterministically in terms of parameter space, based on the occurrence of bifurcations of operating points. Th...