Adjustable DC Power Supply
Adjustable DC power supply is a multi-range unit that provides high power to a wide range of load resistances. It was designed primarily as a current bias supply for the several elctronic devices, for use at various impedance levels, over a wide control range. It is particularly useful where large variations in load resistance and power are needed.
Adjustable DC Power Supply
The output is adjustable and is monitored by front-panel voltage and current meters. The output circuit is passive; this permits a large alternating current to flow across the output, without overloading the regulating circuit. This feature is particularly useful when ac and de voltages must be combined to give a composite waveform.
A front-panel switch selects either voltage or current regulated output. Regulation is obtained by comparison of the output voltage or current with an adjustable reference signal. Any difference between the two signals changes the “firing angles” of the rectifiers to keep the output at the desired level.
The output is available at the red (high) and the gray(low) binding posts on there are panel. The third (metallic) binding post connects directly to the chassis. This can be used as a grounding point for the chassis or for either side of the load.
A circuit breaker, reset by a switch on the front panel, provides overload protection to avoid damage to the instrument caused by short circuits that occur during constant-voltage operation.
Load Voltage And Current Adjustments Of Adjustable DC Power Supply
With the OUTPUT control set at the OUTPUT SHORTED position, select the desired ranges on the VOLTS and AMPS switches. These switches are mechanically interlocked to revent the product of the two range settings.
Slowly increase the setting of the OUTPUT control until the panel meters indicate the desired output. The ranges of the meters and the output level are determined by the settings of the range switches.
The best control resolution and the most accurate meter readings are obtained with the range switches set to the lowest values that will give the required output.
Example Product Of Adjustable DC Power Supply
Example power supply in the picture above is adjustable type. Choose a adjustable DC power supply according to your needs.
