7905 5V Negative Voltage Regulator Circuits

7905 5V Negative Voltage Regulator

When it comes to a 5V negative voltage regulator, we usually choose the 7905 three-terminal negative regulator chip as the first choice because it is both easy to use and cheap. Plus, it can supply up to 1.5A when equipped with a sufficient heatsink. We can also turn it into an adjustable voltage regulator by … Read more

7805 and 7905 Dual Adjustable Power Supply Circuit

Let’s build an adjustable dual power supply circuit using a 7805 and a 7905 IC. The output can be adjusted from +5V to +25V and -5V to -25V at 1A. It is also a great way to understand the basics of OP-AMP circuits. Read more