In this article I will try to explain the making of a 1500 watt simple heater controller circuit at 25 amp current rate using an ordinary triac based dimmer switch circuit Using Advanced Snubber less Triacs Controlling heaters rated as high as 1500 watt requires stringent specifications with the controlling unit for safe and effective […]
Controller
Climate Dependent Automatic Fan Speed Controller Circuit
The following circuit of a temperature or climate controlled automatic fan speed regulator circuit was requested by one of the followers of this blog Mr.Anil Kumar. I have explained more about the proposed design. The Design As can be seen in the given diagram, a very simple concept has been implemented in the proposed design of a climate controlled […]
Heater Controller Circuit Using Push-Buttons
Controlling a heavy electrical appliance with push buttons can be extremely convenient since it allows a solid state approach for operating the parameter both ways up and down by mere push of the relevant buttons. Here I have explained a heat controller circuit using a set of push buttons and PWMs. Using a Digital Push […]
Adjustable Drill Machine Speed Controller Circuit
The proposed variable drill speed controller circuit maintains a constant (adjustable) speed over the drill machine motor, regardless of the load. One of the most used power tools is the power drill machine. Despite its innumerable advantages, the power drill has one major setback – constant high speed for many applications. Even when there are […]
Anti-Corrosion Probes for Water Level Controller
In this post I have explained a few interesting methods of constructing anti-corrosion probes for water level sensor and controller circuits by using alternating supply across the probes. Using Bridge Rectifiers (New Update) This simple anti-corrosion probe idea using bridge rectifiers happened to strike me recently and I decided to post it here for you […]
High Current Sensorless BLDC Motor Controller using Back EMF
In this post I have explained a high current sensorless BLDC motor controller circuit which does not depend on hall effect sensors for initiating the operations rather utilizes the back EMF from the motor for the sequential input Overview For proper commutation most 3-phase BLDC driver circuits rely either on a sensor based feedback or […]