8A DC / Continuous Pulse Current Source

The SpikeSafe™ 8A DC / Continuous Pulse Current Source is part of the SpikeSafe DC / Continuous Pulse Current Source family. This programmable source provides 4 independently controlled source channels of reliable and accurate DC / constant or continuous pulse current drive at compliance voltages up to 200V.  This high current/high channel count combination makes the 8A an ideal choice to power devices such as high power laser stacks, VCSEL, COB LED arrays, and other semiconductor devices. The 8A DC / Continuous Pulse Current Source features precision pulsing with nanosecond rise times and minimum 1us pulse widths. This current source is optimized for LED, VCSEL or Laser Diode reliability, burn-in, IESNA LM-80, and other test applications requiring reliability, precision and constant or pulsed current. Each source channel delivers up to 1600W 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. 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. The maximum current is 8A, with an output current accuracy of 0.04%+350µA, and a minimum pulse width of 10µs.

8A Source Pulse Shapes

Precision pulsing is key to best practices measurements. The 8A 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 1us with pulse rise and fall times of 200ns to 3us. Ramp time is adjustable.

Performance Curves

This model includes buck/boost and is available for use with an internal power supply (300W or 600W). For total output power across 4 source channels (4 x 1.6kW = 6.4kW), 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.