Understanding Pulsed DC: A Comprehensive Overview
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Pulsed DC, or pulsed direct current (PDC), combines attributes of both alternating current (AC) and direct current (DC). It is typically generated from AC using a half-wave or full-wave rectifier. Pulsed DC exhibits some characteristics of both AC and DC waveforms, as the voltage of DC remains roughly constant while the voltage of AC continuously varies between positive and negative values.
Applications of Pulsed DC
Pulsed DC has a broad range of applications in multiple industries, including reducing electric arcs when producing thin carbon films and increasing yield in semiconductor fabrication by lessening electrostatic build-up. Pulsed DC is also frequently utilized to power light-emitting diodes (LEDs) and decrease their brightness. Thus, this use of pulsed DC current has proven very valuable to the manufacturing and electronics industries. The thin film materials produced through this method are used in various electronic components.
Smoothing Pulsed DC
Pulsed DC current has diverse industrial applications, such as reducing electric arcs in thin carbon film production and enhancing semiconductor fabrication yield by mitigating electrostatic build-up. Moreover, it is commonly employed to power light-emitting diodes (LEDs) and reduce their luminance intensity. As a result, pulsed DC represents a crucial tool for the manufacturing and electronics sectors. The thin film materials produced by this procedure are utilized in multiple electronic devices.
Pulsed and DC Power Systems
Advanced Energy provides a complete suite of DC and pulsed-DC solutions aimed at reducing arcing, increasing deposition rates, and improving film flatness and packing density. The suite features Ascent AMS - Arc Management System™ (AMS) technology for metal and ceramic targets, Set Point Compensation™ technology, and Arc Sync® technology, which can be utilized for primary/secondary of up to 12 units. The Ascent AP provides a customizable and compact solution for power delivery (up to 30 kW) with advanced process management through a tiered approach to arc mitigation. The Ascent DMS is a scalable and modular system (configurable up to 180 kW) that offers selectable frequency (500 Hz to 50 kHz) and an adjustable duty cycle, as well as independent power ratio regulation for each magnetron. The Pinnacle III is a high-power DC and pulsed-DC power supply that provides a broad range of power levels and configurations.
Conclusion
Pulsed DC is an electric current form that displays characteristics of both AC and DC waveforms. It possesses a broad spectrum of utilization in different industries, including the reduction of electric arcs during thin carbon film production and driving LEDs with lower intensity. Pulsed DC may not be beneficial for modern DC equipment practices until a capacitor has smoothed it out. Advanced Energy provides an extensive suite of DC and pulsed-DC options aimed at reducing arcing, increasing deposition rates, and enhancing film flatness and packing density.