# How do you wire two voltage regulators together?

## How do you wire two voltage regulators together?

The normal method is to simply run the output of the two regulators through a diode (one each), and then connect the outputs of the diodes together. In this case, this is called a “Wired OR” and the diodes referred to as “OR-ing Diodes”. The diodes are there mainly to isolate one regulator from the other.

## How does a 7805 voltage regulator work?

For 7805 IC, it is +5V DC regulated power supply. This regulator IC also adds a provision for a heat sink. The input voltage to this voltage regulator can be up to 35V, and this IC can give a constant 5V for any value of input less than or equal to 35V which is the threshold limit.

Can you connect voltage regulators in parallel?

To improve efficiency in high-power applications, voltage regulators can be used in parallel to double output current capabilityâ€”if a means of forcing current sharing is provided. One circuit approach uses sense resistors in series with the load and is applicable to regulators of any type.

### Can I use two voltage regulators in series?

There is nothing wrong with cascading regulators in series. It’s done all the time in both commercial and military applications. Just keep in mind that everything connected to the 3.3V regulator will be an additional load on the 6V regulator. Make sure to size the 6V one properly and use adequate bypass caps.

### How do you make a 5V power supply with a 7805?

Output currents up to 1A can be drawn from the IC provided that there is a proper heat sink. A 9V transformer steps down the main voltage, 1A bridge rectifies it and capacitor C1 filters it and 7805 regulates it to produce a steady 5Volt DC.

What is the circuit arrangement of a 7805 IC?

Pin Diagram of 7805 Voltage Regulator IC

PIN NO. PIN DESCRIPTION
1 INPUT Pin 1 is the INPUT Pin. A positive unregulated voltage is given as input to this pin.
2 GROUND Pin 2 is the GROUND Pin. It is common to both Input and Output.
3 OUTPUT Pin 3 is the OUTPUT Pin. The output regulated 5V is taken at this pin of the IC.

#### How does an IC voltage regulator work?

A voltage regulator generates a fixed output voltage of a preset magnitude that remains constant regardless of changes to its input voltage or load conditions.