You often need a power supply to test electrical circuits or components. A power supply displays the current and voltage, so you can see what is happening. The current and voltage can also be set. In addition, a power supply offers handy connections, so that you can easily connect the circuit or load to it. Our website offers many 60V and 75V power supplies, but which is the best choice? In order to be able to make the right choice between the many 60V and 75V power supplies, we have selected five power supplies and compared them with each other.

Power supplies

Korad KD6002D

The Korad KD6002D is a transformer-based regulated DC bench power supply with over-current protection (OCP), constant voltage (CV) and constant current (CC) mode. It has a 4-digit display for both voltage and current settings, which can be set precisely in steps of 10 mV and 1 mA respectively. By pushing the knobs, the settings can be adjusted either fine or coarsely. Furthermore, the load can be hooked up to the screw terminals by attaching them to the screw or by using conventional banana plugs. During operation, the device actively cools itself with a temperature-controlled fan.


Korad KA6005P

The Korad KA6005P power supply is a programmable DC power supply with a 4-digit display. It is programmable via the USB or RS232 connection. The power supply has an adjustment precision of 10mV/1mA and a switch to turn the power supply on and off. The Korad KA6005P has CC and CV modes. Additionally, due to the 5 memory slots, the preference settings can be stored and recalled easily. Furthermore, the Korad KA6005P power supply has a power of 300W.


Owon SPE6103

The Owon SPE6103 is a very compact single-channel DC benchtop power supply with all the regular features such as over-voltage (OVP) and over-current protection (OCP). It has a high resolution at 10mV/1mA. The display is a high resolution 2.8" LCD which displays set, limit and momentary parameters. The SPE6103 allows you to monitor the voltage and current in real-time, using graphs on the display. You can store and edit up to 4 groups of output waveforms. The power supply can be hooked up to a host PC with USB and communicate via SCPI.


Owon P4603

The Owon P4603 is a programmable lab power supply of max. 60V and 3A with a high resolution of 1mV and 1mA, and a low ripple of 1 mV. This power supply comes with a large 4-digit LED display to display current and voltage and is also equipped with automatic active cooling. It contains protection against overloading, short-circuits and overheating. Furthermore, the P4603 is programmable via SPCI and LabVIEW on the PC and comes with an RS232 connection.


Atten TPS300P

The Atten TPS300P power supply is a versatile lab power supply up to 75V and 10A (max 300W), both in output, configuration and in protection. This lab power supply has a number of features that you will normally only find in the higher price segment. For instance, the cooling is completely silent at low load and only switches on when the internal temperature becomes too high. Two power supplies can be placed in series or parallel (including communication between them). Furthermore, various protections are available, like OVP and OCP with alarm options. In addition, the power supply has external analogue and RS232 interface (default) connections. Lastly, the power supply is accurately adjustable (10mV / 10mA).


Video

This video compares the five 60V and 75V lab power supplies mentioned above. First, each power supply is discussed and the advantages and disadvantages are shown for each device. After that, noise production measurements were performed and the results are displayed. Finally, an overview is given of all the advantages and disadvantages of each power supply.