Table of Contents
How do you convert 9V DC to 3V DC?
To reduce a 9V battery to 3.3 volts, use a zener diode, such as a 1N746 or a 1N4728A. Choose the appropriate one based on how much power it can dissipate. A 1N4728A has a 3.3-volt and a 1 W power rating. It can supply, on average, a stable 3.3 volts to a circuit or another component.
How do you reduce 5v DC to 3V DC?
So back to our circuit, if we have 5 volts and want 3V from it, we use the formula above. If we use a 10KΩ as our R1 resistor, plugging in the values, we get R2= (V)(R1)/(VIN – V)= (3V)(10KΩ)/(5V – 3V)= 15KΩ. So we can use a 15KΩ resistor as our R2 resistor with the R1 resistor being 10KΩ. Let’s do one more example.
What is tl496?
The TL496C power-supply control circuit is designed to provide a 9-V regulated supply from a variety of input sources. Operable from a 1- or 2-cell battery input, the TL496C performs as a switching regulator with the addition of a single inductor and filter capacitor.
How do I get a 5 volt DC power supply?
There are several ways to get 5 volt DC supply. I am mentioning three of them: 1. You can easily get the required supply by mobile chargers. Just remove the charging pin and you have a five volt DC supply source (it will cost you only 60-80 rupees) 2.
What is the best way to convert 12V to 3V?
Depends on how efficiently and accurately you want to do it. A 9V zener diode in series with 12V drops it to 3V. A resistor will do it if the current is constant but both with 25\% efficiency and poor accuracy. A linear regulator has the same poor efficiency but very good accuracy.
What voltage should I choose for my power adapter?
It is important to use the correct volts when choosing the adapter as a device can only run on the rated voltage. The most common are 18V, 12V, 9V, 6V, 5V and 3V.
What is the current requirement for 5V to 12V power supply?
The current requirement at 5V and 3.3V is very less (order of tens of mA). The 5V and 3.3V are powering micro-controllers and/or FPGAs only (again to reinforce the lower current requirement). Stage 1: Use a non-isolated buck (synchronous or asynchronous doesn’t matter) for 24V to 12V.