This dual current-source pulse amplifier is designed to operate from a 12 V battery supply. Its simple circuitry offers good performance and serves as a base design that can be modified and optimized for specific applications. Several variations on this design are explained in the e-booklet, and are optimized for different design trade-offs. Background tutorials on analog amplifier design are given and applications covered.

Applications

	Pyrotechnic igniter driver
	Battery-operated pulse generator
	Pulsed current source
	Lamp driver
	Remote power-line driver
	Capacitor charger
	Calibrated charge delivery

Specifications

	Current output amplifiers source up to 4 A each (MTP3055) or 2.5 A (IRFZ14) from 13.8 V supply.
	Pulse input scale factor: 0.5 A/V; jumper setting for 1 A/V.
	3 inch ´ 1.8 inch ´ 0.5 inch, with four corner # 8 mounting holes.
	Clean pulse response. (See oscillographs below using MTP3055.)

4 A, 150 ms output pulse into 1 W load

4 A out into 0.33 W load

2 A out into 1 W load

	Unregulated 12 V input power; can be powered by 12 V battery.
	Inputs and outputs protected against applied reverse voltage.
	Design based on low-cost LM324 quad op-amp and IRFZ14 or MTP3055 MOSFETs.
	0.25 inch quick-fit connector pads:

Pulse input (left side), top to bottom (see picture above): PG1 GND PG0

Output (right side), top to bottom: GND +12V(U) PG1 GND PG0

	Component count: 46 parts, including circuit-board.
	Test points (I0, I1) for current feedback (1 A/V).
	On-board 12 V regulator.