Abstract: Described is a device for driving a dermatological laser. The system includes a first diode, an inductor, a switch, and a photodetector. A first end of the inductor is coupled to an end of the first diode, and a second end of the inductor is coupled to a flashlamp. An electrical control of the switch is coupled to a control system, a first end of the switch is coupled to a power source, and a second end of the switch is coupled to the first end of the inductor and the end of the first diode. The photodetector is adapted to measure at least one of output energy or output power of a laser medium pumped by the flashlamp. The photodetector is in communication with the control system for modulating a flashlamp that drives current to maintain a predetermined value of the measured output energy or output power.

Abstract: An electromagnetic stimulator circuit has a precharge power supply, a capacitor, a set of switches, and a stimulator coil. The switches, which can be implemented using a variety of devices, enable flexible control over the coil current waveform without requiring the physical reconfiguration of circuit elements. The shape of the output current pulse is controlled by the modulation of the switches, and much of the energy applied to the coil is returned from the coil to the capacitor for reuse on the succeeding pulse. Less power is required and less heat energy is generated.

Abstract: An electromagnetic stimulator circuit has a pre-charge power supply, a capacitor, a set of switches, and a stimulator coil. The switches, which can be implemented using a variety of devices, enable flexible control over the coil current waveform without requiring the physical reconfiguration of circuit elements. The shape of the output current pulse is controlled by the modulation of the switches, and much of the energy applied to the coil is returned from the coil to the capacitor for reuse on the succeeding pulse. Less power is required and less heat energy is generated.