PSA065-120

AC DC Converters: PSA065-120 Application Field and Working Principle

The PSA065-120 AC DC converter is a high voltage direct current (HVDC) converter designed for use in industrial and commercial DC power systems. The unit was developed by Power System Applications and is capable of providing a regulated DC output voltage of 0 - 120VDC at up to 65A. It is an ideal solution for providing power to medium to large scale electric equipment, such as motor control, lighting systems, hydroponic systems, and even DC-based computers.

The AC DC converter is based on a controllable multi-phase power supply architecture featuring a rectifier bridge, a multi-stage DC-DC converter, and an output control section. The PSA065-120 can convert AC current from a wide range of input sources such as alternatively-powered generators or battery banks.

In operation, the AC input is rectified into a DC waveform before being fed to the main stage, a high frequency, full-bridge (or center-tapped) converter. The pulse-width modulation (PWM) of the output is controlled by monitoring the voltage output from the load. When the voltage signal reaches the desired threshold, the DC-DC converter is regulated by using the pulse-width adjustment method.

The output voltage of the PSA065-120 is regulated by using the closed-loop feedback system, and can adjust the voltage from 0-120V with a minimum of pulse-widthchanges required. This eliminates the need for a complex voltage adjustment system, while maintaing stability of the output voltage.

The output current can be adjusted by changing the duty cycle of the PWM control signal, allowing the operator to control how much current is drawn from the AC DC converter, depending on the needs of the load. This gives the operator the option of setting a maximum current draw, which increases the system safety.

The PSA065-120 also offers a range of protections against abnormal current and over temperature, as well as short-circuit protection. This means that the unit can be used safely, reliably and consistently even in harsh industrial environments.

To sum up, the PSA065-120 AC DC converter is an ideal solution for providing reliable, safe and consistent power output to larger scale industrial and commercial DC power systems. It is an ideal solution for motors, lighting systems, hydroponic systems, DC computers and other equipment that is powered by DC power sources, while still providing the required operational safety to operators and those working on the system.