Power Supply Circuits

This tutorial show Step-Up Voltage Regulator Circuit using IC LM2700 which makes low DC voltage go higher. Good for battery devices and keep output steady even if input changes. LM2700 IC is step-up switching converter with switch inside and handle 3.6A and 80 MΩ. Works fast at 600 kHz or 1.25 MHz. Circuit changes 3V DC to […]

Boost converter changes small DC voltage to big voltage. It is good for battery devices because battery voltage sometimes is less than device needs. This 5V Step-Up Converter Circuit using IC LTC3440 changes input 2.7V to 4.2V into steady 5V output. LTC3440 IC is very efficient up to 96% and give up to 600mA current. […]

Boost Converter 12V to 120V DC Step-Up Circuit is made to raise 12V to 120V DC. It helps to change voltage level when needed. It takes 12V input and makes strong 120V output. Circuit is good for using high voltage from low voltage like battery. Output powers to about 100 watts. Circuit has two parts […]

Step-Up Converter 6V to 15V use IC LM2585 and a switch mode regulator. LM2585 IC is very good for boost voltage. It can use in boost, flyback, forward or multi-output systems. Chip has built-in switch and can handle up to 3A. This Step-Up Converter Circuit: 6V to 15V Boost Regulator is good to get high […]

DC to DC converter is good circuit. It can make voltage up or down for many use. In this article we will talk about 12V to 24V DC Voltage Converter Circuit using IC LM324 This circuit is a double input voltage using boost converter and oscillator. Load current must not be more than 800mA. The […]

Simple High Current Voltage Regulator Circuit using LM317 and LM195 give steady voltage with big current. Here IC LM317 regulator work with IC LM195 power transistor. Together they give steady output with more current than LM317 alone. IC LM195 is a special transistor with safety protect from overload. This circuit can handle output current up […]