4results about "Electric pulse generator details" patented technology

A transmitter employs simple inverters to predrive cascode-connected pull-up and pull-down output stages. Each output stage includes a drive transistor with a thin gate dielectric for fast switching. The drive transistor is cascode connected to a set of parallel-connected transistors. Calibration circuitry selectively enables the parallel-connected transistors to calibrate output resistance. The parallel transistors converge at a single resistor.

The technology described herein is directed towards phase change material-based (e.g., chalcogenide) radio frequency switch device. The switch device has phase change material junctions between selectable ports and a common port, in which the phase change material junctions are controlled to be in either conductive or nonconductive states, thereby respectively coupling or decoupling each selectable port to (or from) the common port. A controller can selectively pulse the respective junctions of a multiport switch device to independently determine their respective conductive or nonconductive states. In one implementation, the switch design is symmetrical so that any one of the multiple selectable ports has very similar performance characteristics to that of any other selectable port. The phase change alloy switch device described herein provides high switching speeds, low insertion loss, good isolation and is relatively straightforward to fabricate.

Portable high-voltage electrical stimulation devices and systems are disclosed that are scalable to utilize a minimal number of output channels to a large number of output channels. The devices and systems include a high-voltage power supply and output pulse circuitry comprising a plurality of output channel circuits. The electrical stimulation devices and systems disclosed herein also provide improved safety features, including an optional safety monitor.

This application discloses an orthogonal signal generator and electronic device, belonging to the field of power electronics technology. The orthogonal signal generator includes: a transformer, comprising a primary coil and a secondary coil; a first coupling capacitor, one end of which is electrically connected to the center tap of the primary coil, and the other end of which is electrically connected to the center tap of the secondary coil; a first grounding capacitor, one end of which is electrically connected to the center tap of the primary coil, and the other end of which is grounded; and a second grounding capacitor, one end of which is electrically connected to the center tap of the secondary coil, and the other end of which is grounded. The orthogonal signal generator provided in this application can achieve broadband performance through a single-stage structure.