These useful lightweight, cheap, analogue tachometer circuits are developed for facilitating car or auto servicing mechanics for precisely adjusting a car ignition system RPM to get maximum efficiency from it. The proposed circuits are actually combined results of a tachometer and a dwell meter. Application The car RPM servicing meter circuit can be applied for […]
Newly Updated Circuit Projects:
Battery Bank Charger Circuit
The post narrates an automatic Battery Bank charger circuit with an automatic over charge cut-off feature for operating with an electric car. The idea was requested by Mr. George. Circuit Objectives and Requirements I’m George From Australia trying to convert small car into an electric car. The attached PDF show the configuration of lithium battery […]
BJT Emitter-Follower – Working, Application Circuits
In this post I have explained how to use a transistor emitter follower configuration in practical electronic circuits, we study this through a few different example application circuits. An emitter follower is one of the standard transistor configurations which is also referred to as common collector transistor configuration. Let’s try to first understand what’s an […]
PWM Inverter Using IC TL494 Circuit
A very simple yet highly sophisticated modified sine wave inverter circuit is presented in the following post. The use of the PWM IC TL494 not only makes the design extremely economical with its parts count but also highly efficient and accurate. Using TL494 for the Design The IC TL494 is a specialized PWM IC and […]
433 MHz RF 8 Appliances Remote Control Circuit
In this post I have explained a circuit which can be used for controlling 1 to 8 appliances with a single RF 433MHz remote control handset. Now you can control fans, lights ACs, oven etc within a range of 50 meters with the same remote. In a few of my earlier posts I have comprehensively […]
IRF540N MOSFET Pinout, Datasheet, Application Explained
The IRF540N is an advanced HEXFET N-channel power mosfet, from International Rectifier. The device is extremely versatile with its current, voltage switching capabilities, and thus becomes ideal for numerous electronic applications. The datasheet and pinout details of the device has been explained in the following article. Main Features: Sophisticated, cutting-edge processing technology used. Extremely low […]