Adjustable Regulator
The LM117 series of adjustable 3-terminal positive voltage
regulators is capable of supplying in excess of 1.5A over a
1.2V to 37V output range. They are exce...
Current Booster
Volt regulators such as the LM708, and LM317 series (and others) sometimes need to provide a little bit more current then they actually can handle. If that is t...
Regulator Combination Circuits
There are a number of ways to obtain the low voltages required to run small projects from the wall power outlet. The simplest way is to buy a factory-built mold...
-15 V 1-A Regulated Power Supply
The supply receives -20 V from the rectifier/filter which is fed to the collector of the Darlington pnp pass transistor, a TIP105. The base drive to the TIP105 ...
-15 V 1-A Regulated Power Supply
The supply receives -20 V from the rectifier/filter which is fed to the collector of the Darlington pnp pass transistor, a TIP105. The base drive to the TIP105 ...
Dynamo Current and Voltage Regulator
In the typical dynamo charging circuit, B+ and B- are the battery connections. D+ and D- go to the dynamo brushes, while DF is the field connection, with its ot...
simple voltage doubler
this circuit rougly doubles the voltage of the input, however the current output is low. doubled output is at `V source.`...
Variable Voltage Regulation
Controlling the output voltage from a regulator can be made variable in three ways:-
1. Using a fixed reference zener diode to increase the output by the value...
12 Volt Supply Regulated
This circuit above uses a 13 volt zener diode, D2 which provides the voltage regulation. Aprroximately 0.7 Volts are dropped across the transistors b-e junction...
LM317 Regulator Circuit
The voltage regulator is an LM317T, and should accept up to about 14 volts without problems. It can handle up to 1 amp, but you WILL need a heatsink on the volt...
Overvoltage Protection for the LM317
This is an add-on Over Voltage Circuit for the LM317 Regulator Circuit submitted by Matthew Hewson. It is a voltage regulator that allows a 6v portable supply t...
Increasing Regulator Current
Although the 78xx series of voltage regulators are available with different current outputs, you can boost
the available current output with this circuit. A po...
LM317 variable power supply
It`s a variable power supply based on a lm317 voltage regulator the range of power is between 1.6 and 13.5 volt, you can get till 1,5 Amp. if supply the IC of a...
L200 Power Supply
The versatile 5 pin L200C regulator offers both voltage and current regulation in a single package. The IC also features thermal shutdown and input over voltage...
L200 Power Supply
The versatile 5 pin L200C regulator offers both voltage and current regulation in a single package. The IC also features thermal shutdown and input over voltage...
Solar Regulator
The SIMD1 was enhanced in the Solar Regulator version which supplies a constant 2V after triggering and permits driving LEDs without using current limiting resi...
Solar Regulator
The SIMD1 was enhanced in the Solar Regulator version which supplies a constant 2V after triggering and permits driving LEDs without using current limiting resi...
Shunt Regulator for Solar Cells
One application is where you need a Higher Power Zener, Possibly even a 100 watt rating.
Another useful application is as a Shunt Regulator for Solar Cells t...
Shunt Regulator for Solar Cells
One application is where you need a Higher Power Zener, Possibly even a 100 watt rating.
Another useful application is as a Shunt Regulator for Solar Cells t...
Servo loop improves linear-regulator efficiency
Linear regulators are easy to implement and have better noise and drift characteristics than switching approaches. Their largest disadvantage is inefficiency: e...