High Voltage Circuits
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High voltage switching stabilized voltage supply circuit is shown in the diagram. It is the switching power supply of 80P type color TV. It adopts auto-excitation, PWM circuit. Its output is isolated with power system. This power supply has 110V and 18V DC.... -
Pyroelectric infrared sensor head is same with the figure. When it detects the human body infrared signal in guarding zone, the sensor head will output a positive jump pulse signal, this signal is added to input terminal P point. IC1 adopts 555 time base.... -
This high voltage generator can generate stable high voltage above 8kV. Its circuit is simple. It is stable and reliable. This circuit includes step-down rectifier, voltage regulator circuit, 18kHz multivibrator type oscillator and booster transformer, etc..... -
This is a simple high voltage inverter circuit. It is uses NPN transistor type 2N3055. This circuit used to invert low voltage to high voltage. Besides that,.... -
The circuit shown in the schematic diagram below is an isolated dc-to-dc step up converter. Being isolated means that there is no electrical connection between.... -
The design is based on the TubeHobby and is the power supply used in their NC2. I built this very kit as my first nixie tube project, and you can find a review of this excellent kit in the reviews section of my blog. The circuit is a switch-mode power supply.... -
The high voltage electrolytic capacitors in valve equipment tend to deteriorate if the equipment is not used for an extended period. This deterioration takes the form of reduced capacitance and greatly increased leakage current. In some cases, the capacitor.... -
High Voltage Stun Gun Disclaimer: As i have seen before, IT IS NOT A TOY, DON`T DO ANYTHING STUPID WITH IT. I DON`T ACCEPT ANY RESPONSIBILITY OF DAMAGES DONE TO OTHER PEOPLE OR YOURSELF WITH THIS DEVICE. IF YOU WANT TO BUILD IT YOU MUST ACC....
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.....
The driver circuit (see the complete schematic) has 4 main sections: * the voltage...
The previous version of this device used pulse width modulation (pwm) to control the power from...
To calibrate the gauge, connect the battery and press the probes gently into a pot containing a...
The circuit is based on operational amplifier IC1 used in the noninverting amplifier mode. Rl and...
A Wien bridge oscillator produces sine waves with very low distortion level. The Wien bridge...
In general, the transceiver switches the 4-element 1500 ohm xtal BPF ends between the inputs and...
Video signals can be difficult to display on an oscilloscope. Normal trigger circuits in most...
This circuit takes standard 0-10V control voltage (for example from analogue light controlling...
I decided to throw together a schematic of how the OEM AUX switch should be wired, and print it...
This simple circuit indicates the amount of power that goes to a loudspeaker. The dual-color LED...
This little circuit will pay for itself many times over the first time it is used, especially if...
Electrical pulses generated by the first base circuit pin output, and then sent through R6...