Leaving aside the complex chargers, `stuffed` electronics capacitor charger is one of the best connections. Charging current is limited by the resistor (or other element of the changing excess energy into heat), but the reactance of the capacitor to the primary side. The charger is not heated, the greatest loss occurs only at the transformer and rectifier diode. Connecting the charger is in the picture 1 . On the primary side switch is transformátru P?1a, which we include in series with the primary winding of the transformer capacitors C1 to C3. Capacitors its reactance to limit current through the primary winding. B
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ecause the transformer has a conversion ratio of about 10:1, is transformed on the secondary side current of about 10 times larger. Transformers also provide galvanic isolation from the mains charger output. P?1b switch only serves to connect the neon indicator. On the secondary side will be sufficient in the case nejjednduím rectifier diode D1. Here, the circuit is completed with a protective circuit and gauge output current and voltage. The capacitor charger is unfortunately one major vice. Output terminals can easily be shorted, but may not be unconnected to the load. The primary winding of the transformer is with limiting capacitor form a resonant circuit that may nakmitat much higher voltage than the voltage. Then we have two choices - either we can use capacitors and transformers to "withstand" voltage to 2 kV, and we must never let unconnected output when the charger is enabled. Here, the connection uses capacitors and transformers for standard voltage, it is accompanied by a protective circuit which short-circuits the secondary winding of the transformer is not connected to any load.
The protective circuit is composed of Ty1 thyristor, diodes D2 and D3, resistor R2 and capacitor C4. Increases when the voltage across the secondary winding 18, and closes the thyristor short-circuits it. Slight overshoot will cause the thyristor immediately closed again. During the positive half-wave and closes several times, see...
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....
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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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