Photodiode-amplifier
Posted on Dec 12, 2012
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 is a 0 - 6 MHz DDS VFO controlled by a PIC16F84 (or `C84). The VFO is separated into two...
As the circuit operates, the three sets of diodes with their isolation capacitors, build up an...
This circuit controls resistive and inductive loads up to 2,500W. Its main functional device is...
Press SI. The 100 µF electrolytic capacitor rapidly charges up at about 0 V. The transistor will...
This circuit is a resonant twin-t filter. In this circuit, its purpose (according to the...
The purpose of this page is neither to give a comprehensive review of this popular theremin...
This circuit is intended to indicate the power output level of any audio amplifier. It is simple,...
A differentiating circuit is a circuit that produces pulses or that fades out input waveforms...
CP2128 is a low noise, fixed frequency step-up garden DC / DC converter, in the case where the...
22kW and below hoist with power-saving circuit Y- conversion circuit shown in Fig. The circuit on...
Aforementioned asynchronous RS flip-flop is not synchronized with the system clock signal...
Circuit shown in Figure 3-127. It uses the time relay KT instead of the speed relay. Plugging...
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