My Light Diagram

The LM1875 is a monolithic power amplifier offering very low distortion and high quality performance for consumer audio applications. The LM1875 delivers 20 watts into a 4Ω or 8Ω load on ±25V supplies. Using an 8 load and ±30V supplies, over 30 watts of power may be delivered. The amplifier is designed to operate with a minimum of external components. Device overload protection consists of both internal current limit and thermal shutdown. The LM1875 design takes advantage of advanced circuit techniques and processing to achieve extremely low distortion levels even at high output power levels. Other outstanding features include high gain, fast slew rate and a wide power bandwidth, large output voltage swing, high current capability, and a very wide supply range. The amplifier is internally compensated and stable for gains of 10 or greater. Features • Up to 30 watts output power • AVO typically 90 dB • Low distortion: 0.015%, 1 kHz, 20 W • Wide power bandwidth: 70 kHz • Protection for A...

This picture below is about my setup subwoofer amplifier with 20 CH mixer and parametric . This amplifier use transformer 10 ampere to supply the power and 3 ampere transformer use to supply mixer and parametric.Elco capacitor that i use for the transformer 10 A, only 10000uF numbered 2. The circuit of amplifiers that i use which is 600 watt mono subwoofer amplifier . And booster amplifier only use 2 Sanken transistors. See picture subwoofer amplifier assemblies below : Looked over the side Front view Back top

Traffic Light 20 Chanel based on 74LSxx This view of the proposed traffic Light 20 Chane based only on family and 74LSxx IC 555 as clock source. It is a digital logic circuit. To construct the traffic light rangkaian Control requires no programming of microcontrollers. This page features a circuit that has twenty open collector outputs that turn on one at a time in a continuous sequence. The circuit make use of the family 74LSxx TTL integrated logic devices. The circuits are designed to drive light emitting diodes or low current and low voltage incandescent lamps, but can also lead to other charges of 80 milliamps. notes: The low output go in sequence from 1 - 0 and back to 1 -0 At the clock rate of the 555 timer c3 = 1uf to 10uf depending on the rate of change desured R2 (Variable resistor) in use to determine the timer

The circuit described here is a step-up converter to drive 20 LEDs, designed to be used as a home-made ceiling night light for a child’s bedroom. This kind of night light generally consists of a chain of Christmas tree lights with 20 bulbs each consuming 1 W, for a total power of 20 W. Here, in the interests of saving power and extending operating life, we update the idea with this simple circuit using LEDs.  Power can be obtained from an unregulated 12 V mains adaptor, as long as it can deliver at least about 330 mA.  The circuit uses a low-cost current-mode controller type UCC3800N, reconfigured into voltage mode to create a step-up converter with simple compensation. By changing the external components the circuit can easily be modified for other applications. To use a current-mode controller as a voltage-mode controller it is necessary to couple a sawtooth ramp (rising from 0 V to 0.9 V) to the CS (current sense) pin, since this pin is also an input to the internal PWM com...

The 4 - 20 mA signal is an extremely popular signal specification in instruments. The 4 to 20 mA signal provides "live zero" function. i.e. in the event of a wire break, the signal drops to zero mA. This can be used to detect wire break or sensor failure. This is a crucial advantage of the 4 to 20 mA format. Being a Current signal, it is also less susceptible to external interference. The 4 to 20 mA format works by varying the resistance to a constant source voltage. The sensor consists of a transistor which regulates the current passing through it in accordance with the measured value. Sensors which use this format can be categorized into active and passive transducers. Active transducers are devices which can provide the system voltage as well as regulate the current. Passive devices require an external voltage and only regulate the current. Another advantage of this 4 to 20 mA format is that it can be easily converted into a voltage signal by means of a res...