4 Step Battery Charging Indicator Circuit

The article explains a basic battery 4 step DC voltage monitor circuit utilizing the versatile IC LM324. The Design The suggested battery voltage status indicator circuit making use of 4 LEDs utilizes comparators by means of opamps from the IC LM324.This IC is really a lot adaptable than the other opamp alternatives as a result […]

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Automatic Plant Irrigation Circuit

The article describes a good automatic plant irrigation system circuit that are available for quickly sensing soil humidity and initiating a water pump when the ground gets burning below a fixed level (adjustable). The circuit is quite simple and makes use of just one IC 555 as the main active component. Looking at the automatic […]

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Automotive Speed Limit Indicator Circuit

In our earlier content we certainly have found out widely concerning the ICs LM2907/LM2917 which can be simply frequency to voltage converter ICs, and are preferably relevant in all such appropriate fields. Here we observe how the same chip can be utilised to create a vehicle speed limit alarm circuit. Speedometer Image In accordance with […]

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Simple Digital Voltmeter Circuit

The article points out a straightforward digital panel type voltmeter circuit utilizing a single IC L7107 and a couple of other normal parts. The circuit has the capacity to calculate voltages right up to 2000 AC/DC V. Providing this easy digital panel voltmeter circuit is especially hassle-free on account of the access of the A/D […]

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20 watt, 5 watt Fluorescent Lamp Inverter Circuit

The straightforward circuit will probably illuminate up to two 20watt fluoroscent tubes from a 12v supply. The circuit also offers a brightness change to minimize the current through the battery pack. The two counterparts equally offer the illumination part taken off and the 100uF eliminated. elimination of the 100uF minimizes the illumination collectively decreases the […]

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Keyboard Beep Circuit

There are many situations where an audible indication for a button pressed would be very useful. Two particular cases are: a morse key, where it is otherwise impossible to know that the key has been operated, and an ASCII keyboard. This circuit is based on a 7555 timer IC (the CMOS version of the well […]

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How to Build a Logic Level Indicator Circuit

This logic detector probe circuit can be very helpful device for people who may choose to measure the logic levels of digital circuits frequently. Being an IC based circuit, it’s applied in CMOS technology, its aplication is definitely more devoted to test circuits making use of the same technology. The power for the recommended logic […]

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How to Make a 4 LED Temperature Indicator Circuit

The 4 LED temperature indicator circuit talked about here is very beneficial for obtaining a visual details about the condition of temperature which is certainly to be supervised. In the circuit temperature status is shown utilizing four LEDs. – A green LED, showing that the temperature is in the suitable level – Two yellow LEDs […]

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