20A DC / Continuous Pulse Current Source

The SpikeSafe™ 20A DC / Continuous Pulse Current Source is part of the SpikeSafe DC / Continuous Pulse Current Source family. This programmable source is optimized for LED, Laser Diode, or VCSEL reliability, burn-in, IESNA LM-80, and other high-power/high-capacity test applications requiring DC or pulsed current. 20A DC / Continuous Pulse Current Sources feature precision pulsing with minimum 1us pulse widths and nanosecond rise times. This source is available with one or two independent source channels of reliable and accurate DC or continuous pulse current drive at compliance voltages up to 200V.  Each source channel delivers up to 3200W of output power at an industry-leading 96% power conversion efficiency. High efficiency reduces electricity and facility cooling needs, lowering the total cost of ownership for systems. Continuous power conversion technology means no duty cycle or pulse width limitations.

Adjustable load tuning allows the SpikeSafe to compensate for load conditions, cable impedance, and length. The result is output pulses with microsecond rise and fall times. Pulses from multiple channels may be synchronized or staggered for load balancing. Multiple output conductor pairs keep maximum current per conductor below 5A, allowing the current output to be routed through standard interconnect devices. A built-in data acquisition system samples pulsed or DC voltage and current to support LM-80 monitoring requirements. Devices being tested are protected with a gentle turn-on during ramp-up, and with SpikeSafe load protection during operation. SpikeSafe load protection continuously monitors voltage and current patterns and instantly shuts down drive when device anomalies are detected. Maximum current for this source is 20A, with an output current accuracy of 0.04%+700µA.

20A Source Pulse Shapes

Precision pulsing is key to best practices measurements. The 20A Precision Pulsed Current Source offers programmable pulse width flexibility. It is capable of long pulse widths (ms to seconds) and short pulse widths (100us pulse widths and faster). With the pulse source, minimum 10us pulse widths are available with upgrades for fast precision pulsing (1us pulse widths). Pulse width accuracy is 1.3us with nanosecond pulse rise and fall times. Ramp time is adjustable. Fast transient response saves devices.

Performance Curves

This model includes is available for use with an internal power supply (300W or 600W). For total output power, 3.2kW per source channel and 6.4kW total, an auxiliary power supply is required. Please consult Vektrex for auxiliary power supply recommendations.

Learn more about our SpikeSafe DC / Continuous Pulse Current Sources here.