Archives: Projects

Step up DC-DC converter is based on LM2577-ADJ IC, this project provides 12V output using 5V input, maximum output load of 800mA. The LM2577 are monolithic integrated circuits that provide all of the power and control functions for step-up (boost), fly-back, and forward converter...

The circuit diagram presented here is about a negative voltage regulator. It is based on LT1054, which is a switched capacitor voltage converter with regulator from Texas instrument. This device has many advantages over other previously available switched capacitor voltage converters....

Dual DC Motor driver using two L293D IC. The L293D device is quadruple high-current half-H driver. The 293D is designed to provide bidirectional drive current up to 600mA a voltage from 5V to 36V. It provides 600mA +600mA on each channel suitable for mini hobby robots.  The board...

This is a low cost, current feedback phase control AC motor driver based on U2008 IC. The U2008B is designed as a phase control circuit in bipolar technology. It enables load-current detection as well as mains-compensated phase control. Motor control with load-current feedback and...

DC Motor Speed and direction controller project based on L293D H-Bridge and 555 Timer IC. 555 Generate PWM and L293D works as output driver. The 293D provides bidirectional drive current up to 600mA a voltage from 5V to 12V. L293D includes the output clamping diodes for...

The circuit presented here is about a boost converter based on LM2698. It is a PWM boost converter from Texas instruments. LM2698 can also be used as a flyback converter. The current mode architecture is a special feature of LM2698, which provides superior line and load regulation....

This project provides a variable output power supply ranging from 1.2 to 37 V @ 1.5 A.  Uses industry popular LM317 in TO3 package for delivering variable output voltage. Specifications  Input 40 VDC or 28V AC 2Amps  Output : 1.2 to 37 V @ 1.5 A regulated low ripple DC...

This circuit is about a buck regulator which can produce an output of 5V for a input voltage ranging from 7V to 40V. LM2576 is a monolithic IC and it acts as the heart of this circuit. This IC has a potential of delivering an output current up to 3A and requires less number of...