Whenever we come across using 1 watt LEDs or other higher watt LEDs, we are always advised to use high grade aluminum based heatsinks for safeguarding the LEDs from heat, and for acquiring optimal performance from them. Double Side PCB can be Costly However as we all know such PCBs are highly costly and could […]
Newly Updated Circuit Projects:
Bipolar Transistor Pin Identifier Circuit
In the proposed BJT pin identifier circuit when the circuit is switched on, two jumpers will have both LEDs ON and the third will have only one LED illuminated. Investigated, Modified and Written By Abu-Hafss The E-B-C, NPN/PNP Detector Concept The jumper with one LED ON is connected to BASE. If it is red LED, […]
Operating Single Rice Bulb Lamp with 220V AC
In this post I have explained a simple 220V mains operated transformerless single rice bulb power supply circuit, which may be used for illuminating electronic rice lamp diyas replacing traditional oil lamp type diyas during festivals or for decorating sacred idols. The idea was requested by Ms. Rashmi. Technical Specifications I want to make a rice […]
Control Two Submersible Pumps Alternately
In this post I have explained a simple water level controller circuit applicable for automatic toggling of two submersible water pumps alternately in response to a predetermined water level switching. The entire circuit is built using just a single IC and a few other passive parts. The idea was requested by one of the interested members of […]
Bike Magneto Generator 220V Converter
In this post I have explained a circuit design which converts a generator low voltage output into 220V DC and produces sequencing light illuminations across many bulbs in response to increasing voltage from the generator. The idea was requested by Mr. Ken. Technical Specifications I am a student from Singapore polytechnic. I know you’re a […]
Selectable 4 Step Low Voltage Battery Cut off Circuit
In this post I have explained a circuit configuration which facilitates a multi-step low voltage selection and cut-off for the battery being used and monitored. The circuit was proposed by Mr. Pete. Technical Specifications Dear Swagatam,Your assistance during the past few days has been incredible, thanks to which I think I have managed to get close to […]