2results about How to "Extended voltage range" patented technology

This invention provides an adjustable voltage charge pump circuit and device. The circuit includes a voltage multiplier module, a voltage booster module, and a voltage output module. The voltage multiplier module, the voltage booster module, and the voltage output module are all connected to a clock module. The voltage multiplier module is connected to the voltage booster module. The voltage multiplier module generates a voltage multiplier signal based on the clock signal and outputs the voltage multiplier signal to the voltage booster module. The voltage booster module generates a boost signal based on the clock signal and the voltage multiplier signal and outputs the boost signal to the voltage output module. The voltage output module generates an output signal based on the clock signal and the boost signal. This application has the advantages of a wider voltage range for the circuit output signal and greater flexibility in adjusting the circuit output signal.

This invention discloses a buck-boost bipolar bidirectional input / output converter, comprising a first filter capacitor C1, a first circuit unit, an energy storage inductor L, a second circuit unit, and a second filter capacitor C2 connected in sequence. The first circuit unit adopts a half-bridge or full-bridge structure, and the second circuit unit adopts a half-bridge or full-bridge structure. At least one of the first and second circuit units adopts a full-bridge structure, enabling mutual conversion between the bipolar voltages of the first and second circuit units, thus multiplying the voltage variation range on the input and output sides. This invention improves upon the traditional four-switch buck-boost DC-DC converter, achieving stable and adjustable voltage gain by changing the duty cycle while realizing high-frequency, high-efficiency bipolar bidirectional DC-DC conversion, significantly improving the converter's wide-range voltage supply capability.