Output Ripple Minimization of Single-Stage Power-Factor-Correction Bidirectional Buck AC/DC Converter

Single-Inductor Dual-Output Buck-Boost Power Factor Correction Converter

In this paper a single-inductor dual-output (SIDO) buck-boost PFC converter operating in critical conduction mode (CRM) is proposed. By multiplexing a single inductor, each output of SIDO buck-boost converter can be regulated independently. Compared with conventional two-stage multiple output converter, SIDO buck-boost PFC converter benefits from significant overall cost saving, small size and ...

A single stage single switch power factor correction converter

The flyback-flyback single stage converter operated in DCM+DCM is easy to control bus voltage, but it hard to control stress of switch. We propose a new converter having low voltage stress on its switch. The flyback converter is simplified into buck-boost form. Then the PFC flyback transformer is replaced by an inductor The switch of both PFC and DC/DC stages are merged, and a diode is used to ...

Soft-Switching Single-Stage Power Factor Correction Converter

1 This work is supported by NASA-STTR grant # NAS10-00005 AbstractA single-stage, ZVT-PWM, power factor correction converter is proposed in this paper. Zero-voltage switching for the main switch and zero-current switching for the auxiliary switch are realized by utilizing the leakage inductance of the output transformer and the capacitance of the switches. As a result, no additional resonant co...

Bidirectional Buck-boost Converter with Variable Output Voltage

An increasing number of manufacturing processes rely on ultra-high speed and accuracy machines. Piezoceramic actuators are being utilized as parts of such machines. So far, only linear and switched-capacitor power supplies have been used for driving piezoceramic actuators in such applications. This paper proposes a switch-mode power supply to reduce cost and increase system efficiency. In the p...

A Control Scheme for an AC-DC Single-Stage Buck-Boost PFC Converter with Improved Output Ripple Reduction