Current pulse driver

The total value for the capacitance depends on the pulse repetition and pulse duration—in this case, a 1-MHz repetition frequency for a A, 1-ns pulse and a V bus. To ensure the peak current is reached, do not let the capacitor bank discharge . EPC 15 V high current pulsed laser diode driver demo board for Time of Flight (TOF) The EPC development board is primarily intended to drive laser diodes with high current pulses with total pulse widths as short as ns and currents of up to 28 A. The board is designed around the AEC-Q automotive qualified 15 V EPC eGaN ® FET. load current (IL) to ramp up according to the inductor value (L1) and the drain supply voltage (Vs). At the end of gate pulse, the MOSFET turns-off and the current continues to follow causing the voltage across the MOSFET to rise sharply. The over voltage is clamped at the breakdown voltage (VBR) until the load current reaches zero [1].

A pulsed laser diode driver is a voltage controlled constant current source which is designed to deliver a repeatable set of current pulses at a set output level over user defined time intervals. Their output to the laser is defined in units of amplitude and time. 5 Amp Pulsed Laser Diode Drivers. Pulsed current output up to 5 amps; 20 V compliance voltage; Adjustable pulse width from 25 ns to 1 us with adjustable duty cycle up to 5%. Current Pulsers and Laser Diode Drivers (Pulsed Current) These instruments generate current pulses whose amplitude is largely independent of the load voltage. This makes them ideal for pulsing device whose voltage may vary with time (for instance, the voltage drop of laser diodes may vary with temperature, or explosive squibs which change impedance during ignition).

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