Charge amplifier circuit
Posted on Mar 28, 2007
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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 circuit serves as an ultra-low power replacement for multiple LED on-off indicators. It also...
A Variable DC Power Supply is one of the most useful tools on the electronics hobbyist`s...
The device comprises two parts: LED control board and LED display board. The two PCBs are...
Output-clamp diodes are mandatory because loudspeakers are inductive loads. Output LR isolation...
Indicator lamp brightness varies in step with modulated RF signal. Adjust R2 with transmitter on...
This circuit is effective for lamp and heater loads. Some circuits driving reactive loads require...
A designer often needs to know the value of the internal resistance of a battery. Quite a few...
The circuit will generate precision triangle and square waves. The output amplitude of the...
These netbooks use ALC5632 audio codec plus mixer IC which has quite some amount of knobs and...
This simple circuit uses a 741 op-amp in differential mode as a continuity tester. The voltage...
As shown in the block diagram above, the 10 MHz signal is produced by an oven-stabilized 10 MHz...
I make a real-size printout of the PCB in order to verify dimensions of all parts against it....
As shown in the circuit in order to stabilize the lamp brightness L, using thyristor AC...
The transmitter we recommend to build is quite simple. It can even be built by a beginner....
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