High Current Device Characterizer
This high current characterization system is comprised of two independently controlled power supply units; PSU1 and PSU2. PSU1, a +- 20 V at 1 A supply is intended principally for powering the control lead of a three terminal device, or it can be used for relatively low current tracing (<= 1 A). This supply can be operated in either a pulsed or a continuous manner. PSU2 is a 10 V @ 500 A max supply that operates only in a pulsed mode. The output of PSU2 is produced by a high power linear amplifier with feedback that utilizes paralleled Insulated Gate Bipolar Junction Transistors (IGBTs) as series – pass elements. The unit derives IV characteristics for very high-current devices.
Block diagram:
Physical system:
