# Low dropout voltage regulators circuits

I have a 6V battery, but it needs to be applied to digital circuits that used to 5 volt regulated. In first, I will reduce this voltage with a single resistor, but the load current is not constant. The other Continue reading

# Dual power supply 3V,5V,6V,9V,12,15V with LM317,LM337

Here is the variable dual lab power supply circuit.You can select voltage levels are 3V,5V,6V,9V,12,15V at 1A and -3V,-5V,-6V,-9V,-12V,-15V at 1A, use IC LM317 (for positive volt) and LM337 (for negative volt), Controls Voltage Output by S2 For +Vout and Continue reading

# LM317 Linear power supply Regulator selector 1.5V,3V,4.5V,5V,6V,9V 1.5A

This is circuit Linear power supply Regulator, Use IC LM317 ( hot ic regulator) it Adjustable Voltage Output. Control By Selector SW, so Output Voltage 1.5V , 3V,4.5V,5V,6V,9V and 1.5A All Volt out. Detail See on circuit image.

# LM317/LM337 Calculator (IC Regulator)

LINEAR ADJUSTABLE POSITIVE/NEGATIVE VOLTAGE REGULATORS For LM317/LM337 Calculator (Easy Circuit) Click to Calculator Site:

# Top LM317 Regulator

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# Best DC power supply 3Amp to adjust 1.2V-20V & 3V-6V-9V-12V

This is the high quality power supply to provide high current 3A. And still adjust voltage in steps from 3V, 6V, 9V, 12V. adjust voltage is continuous 1.25V to 20V. Using LM317T and 2N3055 are main parts so easy to Continue reading

# Simple Miniature Motor Controller by LM317

I got this from a dosing pump control circuit. we use cool IC is no. lm317 circuit, It can uses with power supply source 24VDC and adjust voltage output 1.25V to 24V for DC motor 24V. It is really simple Continue reading

# Nicad Battery Charger by IC LM317T

Here is circuit Nicad Battery Charger. It use IC LM317T ( Hot IC) Control Current less 300mA, Size battery 2.4V,4.8V,9.6V.It Low cost circuit. This is a NiCAD battery charger circuit. High-quality, Not necessary to have a full charge and cut, Continue reading

# Nicad Battery Charger by IC LM317T

Here is circuit Nicad Battery Charger. It use IC LM317T ( Hot IC) Control Current less 300mA, Size battery 2.4V,4.8V,9.6V.It Low cost circuit. This is a NiCAD battery charger circuit. High-quality, Not necessary to have a full charge and cut, Continue reading

# Nicad Battery Charger by IC LM317T

Here is circuit Nicad Battery Charger. It use IC LM317T ( Hot IC) Control Current less 300mA, Size battery 2.4V,4.8V,9.6V.It Low cost circuit. This is a NiCAD battery charger circuit. High-quality, Not necessary to have a full charge and cut, Continue reading