Voltage Detector Circuits
- Page 3-
As shown in the figure, the temperature detection, temperature-voltage switch and voltage-frequency switch circuit is used to remote detect temperature. We connect the circuit and wireless transmitting circuit forming a temperature detection remote control.... -
LTC6101 op-amp can be used to build High voltage current monitoring/sensing. This circuit can senses current in 500 volts system. Here is the schematic diagram.... -
The circuit diagram of the non-contact voltage detector is shown on the figure 1. It consist of two parts - the AC amplifier and the audio oscillator, based on the Schmitt trigger DD1. 1 of IC CD4093 with the network R7C2, which determines the frequency of....
New Circuits
-
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.....
Relays are devices which allow low power circuits to switch a relatively high Current/Voltage...
The UJT-oscillator frequency is determined by the 100 µ¥ capacitor and the effective resistance...
A 6 V battery can provide 100-150 Vdc center-tapped at a high internal impedance (not dangerous...
Once you have built it, Set the frequency as desired using the "Frequency Control". Than using an...
4QD manufacture motor speed controllers so all our H bridges are PWM. Here`s a simple switch...
Not thrilled with how a computer soundcard drove my 32 ohm Grado SR80 headphones, I decided to...
Using analog audio line delay, you can adjust your room virtually. Just turn a knob in your audio...
Good pitching beats good hitting and a good magnetic mic beats a good carbon mic. This one...
The Flip-Flop Robot drives forward until it hits an obstacle, and then reverses until it hits...
This counter can measure frequencies from 2 Hz to 1 MHz, time interval, and period, and count...
In this circuit a standard op-amp is wired as an astable multivibrator. The output is...