Stereo plus bridge drive Description The STA540 is a 4-channel, class-AB audio amplifier designed for high quality sound applications. The amplifiers have single-ended outputs with integrated short-circuit protection, thermal protection and diagnostic functions. The best audio performance is obtained with the configuration where each speaker has its own DC blocking capacitor Suggested applications: 2x 9 … Read more
LOCATING THE FAULT STAGE FROM FAULT SYMPTOMS Defects can occur in the receiver due to failure of some components such as an IC, transistor, resistance, condenser or picture tube etc due to loose or broken wires, loose or dry joints or some defect in PCB. The main job in troubleshooting is to locate the faulty … Read more
INTRODUCTION A video distribution amplifier ( VDA ) is types of electronics equipment that takes a video signal as an input, amplifies it, and outputs the amplified video signal to two or more output, It is primary to supply single video to multiple pieces of video equipment. SIGNIFICANCE Boosts signal to cover its insertion loss … Read more
The LM317 is a voltage regulator and it has some maximum ratings. One is current, “in excess of 1.5 A” means that it can supply a bit more than 1.5 A, so a 1.5 A application would be OK.
CIRCUIT DIAGRAM Transistor BC548 , SK100 OUTPUT VOLTAGE 4.7V-5V Normal AA/AAA batteries that have a voltage rating of 1.5V can supply constant 50mA current for a total capacity of 1800-2600 mAh charge and 3.90Wh of energy- Alkaline batteries. Now theoretically, if the battery is assumed to be ideal, then it can supply a current of … Read more
Voltage Regulator (7805 IC) It is the component that is responsible for providing a steady DC voltage to an Electronic load. 7805 IC a member of 78XX series of fixed linear voltage regulator, the XX in 78XX indicates the output voltage it provides.7805 IC provides +5 volts regulated power supply with provisions to add heat … Read more
By using 2SC5200 Transistor 2SA1943 Transistor 2SA940 Transistor 2SC2073 Transistor 741 IC Power supply 70V & -70V Click picture to view
Power supply A power supply is an electrical device that supplies electric power to an electrical load. All power supplies have a power input connection, which receives energy in the form of electric current from a source, and one or more power output connections that deliver current to the load. A transformerless power supply (TPS) … Read more
Bridge Rectifier IC Pin out A bridge rectifier is an electrical device that converts alternating current (AC), which periodically reverses direction, to direct current (DC), which flows in only one direction. The process is known as rectification. AC = Alternating current (INPUT) DC+ = Positive direct current (OUTPUT) DC- = Negative direct current (OUTPUT)
A piezoelectric sensor Is a device that uses the piezoelectric effect to measure changes in pressure, acceleration, temperature, strain, or force by converting them to an electrical charge. Piezoelectric Effect Is the ability of certain materials to generate an electric charge in response to applied mechanical stress.