Wide-range-voltage-to-frequency-converter
New Circuits
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This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of.... -
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is.... -
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to.... -
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This.... -
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the.... -
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,.... -
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the.... -
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power.... -
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
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This charger will quickly and easily charge most any lead acid battery. The charger delivers full...
This switch will suit the Modular Burglar Alarm circuit. However, it also has other applications....
This circuit uses two quad op-amps to form an eight LED audio level meter. The op-amp used in...
Here is a diagram of the internals of the MAX232A. It shows a double charge pump voltage doubler...
Works on AVR controllers with RAM and a hardware UART. This code is easily modified to integrate...
A motor driver! I'm sure you knew that already but that's what it is. A motor driver is required...
The circuit provides unambiguous LED + or - bar readout with steps of 0.1%. The reference...
Industrial applications sometimes require that power be only briefly applied to a load following...
This is a circuit for a tone control using 3 band equalizers. This circuit is based on single...
The picture below is of my prototype combination card reader and cloner. The unit is self...
This circuit controls resistive and inductive loads up to 2, 500W. Its main functional device is...
The circuit below illustrates generating a single positive pulse which is delayed relative to the...
For this article, we will use the 128K EPROM (27C128 used in the 1986 to 1989 IROC-Zs with the...
As shown in FIG measuring temperature alarm circuit to the Treasury. The device consists of...
Extended delta decompression starter, that is, when the motor starts its three -phase winding set...
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