Dark Sensitive Lamp ON/OFF Controller
Power

Dark Sensitive Lamp ON/OFF Controller

Dark Sensitive Lamp controller project switches a load connected to it when light falling on LDR (Light Dependent Resistor)  goes bellow set point.  It could be used as an automatic street light application. The project is based on Triac and doesn’t requires additional DC supply,...

Continue Reading
2452
Views
0 Comments
AC PWM dimmer for Arduino
Arduino

AC PWM dimmer for Arduino

diy_bloke @ instructables.com has designed an AC PWM dimmer for Arduino: Over 3 years ago, I published a simpel TRIAC AC dimmer for the arduino. That proved to be a very popular design. Yet in spite of the simplicity of the circuit the software needed was a bit complicated as it...

Continue Reading
11148
Views
0 Comments
Arduino controlled Triac light dimmer
Arduino

Arduino controlled Triac light dimmer

diy_bloke @ instructables.com has build an arduino controlled triac light dimmer and describes the circuit and software used to achieve that. It becomes a bit more tricky if one wants to dim a mains AC lamp with an arduino: just limiting the current through e.g. a transistor is not...

Continue Reading
10150
Views
0 Comments
AC Motor Speed Controller using U2008B
Motor

AC Motor Speed Controller using U2008B

This 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 overload...

Continue Reading
7253
Views
0 Comments
AC Solid State Relay
Control

AC Solid State Relay

This simple circuit designed around Solid State Relay S216S02 from SHARP. The S216S02 solid State Relay (SSR) is an integration of an infrared emitting diode (IRED), a Phototraic Detector and a main output Traic. These devices are ideally suited for controlling high voltage AC loads...

Continue Reading
4474
Views
0 Comments
230 VAC Timer
Timer

230 VAC Timer

Classic AC 230 V Timer project can be used in all application requiring a timer of up-to 3 Minutes to operate or control any AC mains load of up-to 200 Watts. This project is based on the Classic 555 Timer IC, triggering a TRIAC. Input and Output is Optically...

Continue Reading
3494
Views
0 Comments
CSI Premier 75W and Hakko 936 Solder Station Teardowns
Soldering

CSI Premier 75W and Hakko 936 Solder Station Teardowns

Todd Harrison @ toddfun.com did the teardown of the CSI 75W solder station as well as the Hakko 936: The Hakko of course had all analog circuits using operational amplifiers and potentiometers as well as a temperature sensor in the iron tip to signal back to a triac chip controller...

Continue Reading
6352
Views
0 Comments
Basic Types of Thyristors and Applications
Basic Electronics

Basic Types of Thyristors and Applications

In this article we will discuss about the various types of thyristors. Thyristors are 2 pin to 4 pin semiconductor devices that act like switches. For example a 2 pin thyristor only conducts when the voltage across its pins exceeds the breakdown voltage of the device. For a 3 pin...

Continue Reading
58972
Views
4 Comments
Archives