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This is a Simple 10 Amp Solar Charge Controller Circuit Diagram . The SCC2 is a solar charge controller, its function is to regulate the power flowing from a photovoltaic panel into a rechargeable battery. It features easy setup with one potentiometer for the float voltage adjustment, an equalize function for periodic overcharging, and automatic temperature compensation for better charging over a range of temperatures. 10 Amp Solar Charge Controller Circuit Diagram The goal of the circuit design was to make a charge controller with analog simplicity, high efficiency, and reliability. A medium power solar system can be built with a 12V solar panel up to 10 amps, the SCC2, and a rechargeable battery. The SCC2 works with lead acid, NiCD and NiMH batteries with ratings from less than one to several hundred amp-hours. With the appropriate parts selection, the SCC2 can be operated at 6V, 12V, 24V or other voltages. Specifications: Maximum solar panel current: 10 Amps Night time battery drain...

Build a 10 LED Bar Dot VU meter circuit based LM3915. It differs in many respects from other applications on the same chip. The circuit is intended for those who want a VU meter that is connected directly to the output of an power amplifier.  10 LED Bar Dot VU Meter Circuit based LM3915 Circuit Diagram It’s possible to adjust the sensitivity to work with amplifiers that have different output power, you just need to change the value of R1 according to Table 1. In case you did’n find the exact resistor value, then choose the next standard value (for example if you cannot find 33K ohm, then find the 36K ohm), or if you want maximum accuracy you need to put resistors in series or in parallel to achieve the correct value.   You can use various types of LEDs (round or square) to get the visual and aesthetic result you want. The switch S1 will allow you to choose whether VU meter will work as a bar or one by one (dot). In position ON [closed switch], the LED operation is Bar, while i...

This amplifier increases the power of an FM transmitter 50 mW to 10 W in the range 88 to 108 MHz Power amp (10 w) for FM Transmitter Circuit Diagram It is quite critical assembly and RF power transistors must be mounted on heat radiators and handled with utmost care. The coil L1 is formed by 04 turns of wire of 1 mm in diameter in the form of 8 mm diameter. The coil L5 is formed of 07 turns of wire 0.5 cm in diameter in the form of 6 mm in diameter, the coil L6 is wound wire of 1 mm and consists of 03 turns in the form of 10 mm diameter. Finally coil L2 consists of 04 turns of wire of 1 mm diameter in the shape of 10 mm. The transformer T1 includes coils L2, L3 and L4, and these coils has turns of one wire of 0.5 mm figure 2. In this same figure we have to identify the terminals of the transistors. The capacitors must be ceramic disk type or plateau and resistors are 1/4 W.