Free Simple Circuit Diagram
Using a dual-colour LED and few surrounding components, we can make a very simple battery monitor. This battery monitor circuit is suitable for monitoring your car battery, enrich your dashboard with cool and functional accessory. Orange colour is produced by LED when the red and green LEDs are illuminted. The red LED illuminates below 10.5v, green LED illuminates above 11.6v, […]
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Below is a comparator circuit which is can measure with step of 1 volt, the voltage of car battery. The indication of voltage is done by comparison of battery voltage with the reference set by D1. This voltage is applied to the inverting inputs of amplifiers with to compare the battery voltage. We can regulate the gradation of voltage that […]
Read moreThis is a Low-dropout (LDO) Regulator circuit, constructed by using only a single PNP transistor. This circuit is directly related to load current. At very low values of load current as little as 50 mV. This circuit has maximum specified dropout voltage about 0.7V to 0.8V at full current and typical values around 0.6V. Compared with the other regulator types, […]
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Today, simplicity and minimum controls is required for design of a handheld device. It will be very useful if a circuit allow us to turn the power on or of with a single push button. A single-pushbutton power control circuit that consist of only a few small components, and consumes little power is shown on circuit diagram below. A debouncer […]
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