Referring to the following chaser circuit diagram below, we can see a low-frequency, astable oscillator circuit, made up of two gates, IC1a and IC1b, from the IC 4011 quad two-input NAND gate. The operating frequency of this astable is determined by the values of C1 and R11. This circuit configuration works well as a clock-pulse […]
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Sequential Bar Graph Turn Light Indicator Circuit for Car
The article illustrates a simple yet innovative, fancy car turn signal light circuit which produces a rising bar graph sequence effect when switched ON. The circuit idea was requested by Mr. +Bruce Lowry. I have explained more. Technical Specifications I am after a circuit design similar to the LED Bar Graph circuit that is found […]
Understanding MOSFET Turn-ON Process
A correctly calculated MOSFET turn-ON process ensures that the device is switched ON with optimal efficiency. While designing MOSFET based circuits you might have wondered what is the correct way of turning ON a MOSFET? Or simply what is the minimum voltage that should be applied across gate/source of the device to switch it ON […]
Car Turn Signal Flasher Circuit with Lamp Malfunction Indicator
In this post I have explained an automotive/car turn signal indicator circuit idea with a built-in load malfunction indicator, meaning an additional LED lamp fitted on the dashboard which would warn if any of the side indicators went bad or fused. The idea was researched and requested by Mr. Abu-Hafss. The Circuit Concept I have found a transistor-based flasher including a […]
2-Pin Motorcycle Turn Signal Flasher Indicator Circuit with Buzzer
A simple construction procedure of a motorcycle electronic 2 pin turn signal indicator with beeper circuit has been thoroughly I have explained in this article. Normally, the electro-mechanical types of turn signal indicators are not reliable due to low consistency and vulnerability to changing weather conditions. The present design easily withstands the above parameters and […]
Modifying Car Turn Signal Lights, Park-Lights and Side-Marker Lights
In this post I have explained an innovative circuit modification which allows a single common lamp to be used as a parking light, turn signal indicator light, as well as a side marker light on the relevant positions. The idea was requested by Mr. Chris Technical Specifications I have a project that is slightly related […]