Sceneray Co., Ltd

Weiran Zhu

Haitao Zhang

Bin Liu

Jinghua Chen

Caijun Li

A voltage regulating module includes a fine regulating charge pump and a voltage-multiplying charge pump. The first output voltage of the fine regulating charge pump is V=m*V, a second output voltage of the voltage-multiplying charge pump is V=n*V, and a total output voltage of the voltage regulating module V=V+V. Vis an input voltage, a value of m ranges from 0 to 1, and n is an integer greater than or equal to 1.

Voltage regulating module and implantable nerve stimulation system

Provided is a stimulation source generation circuit for a nerve stimulator. A power module supplies an input voltage. A boosting module boosts the input voltage and generates a stimulation source. A charge branch of the boosting module includes an inductor and a first MOS tube. A discharge circuit includes a second MOS tube and an output branch for outputting the stimulation source. An adjustment module outputs an operating frequency according to a magnitude of the stimulation source. The adjustment module is further connected to control ends of the first MOS tube and the second MOS tube and adjusts on or off of the first MOS tube and the second MOS tube according to the operating frequency. The first MOS tube and the second MOS tube cannot be turned on at the same time.

Stimulation source generation circuit for nerve stimulator

A detection circuit includes an open circuit detection branch and a current detection branch. The open circuit detection branch includes a comparator and a digital logic branch. A positive input terminal of the comparator is connected to one end of the sampling resistor adjacent to the stimulation source, a negative input terminal of the comparator is connected to one end of the sampling resistor facing away from the stimulation source, and an output terminal of the comparator is connected to the digital logic branch. The current detection branch includes an amplifier and a first switch. A negative input terminal of the amplifier is connected to the one end of the sampling resistor facing away from the stimulation source, an output terminal of the amplifier is connected to a control terminal of the first switch.

Growing community of inventors

Jiangsu, China

Weiran Zhu