Electronic Circuits

[...] ended audio amplifier, which consists of a resistive input network, a driver stage, and an output stage to a typical 8 ohm loudspeaker load, all the while, using a minimum of supportive passive [...]

[...] ended audio amplifier, which consists of a resistive input network, a driver stage, and an output stage to a typical 8 ohm loudspeaker load, all the while, using a minimum of supportive passive [...]

[...] has very good sound quality.   There are eleven transistors, including four in the output stage. Q1 and Q2 transistor must be between 3 and 5  amperes power transistors. Q4 and Q5 must be [...]

[...] has very good sound quality.   There are eleven transistors, including four in the output stage. Q1 and Q2 transistor must be between 3 and 5  amperes power transistors. Q4 and Q5 [...]

[...] and TTL ICs require a well regulated power supply. these ICs can easily damage when supply voltage is increased. basically this circuit provides overvoltage protection but it has over current, [...]

[...] and forth between the LED’s. The R2 resistor limits LED current. Depending upon the supply voltage used, the value of the resistor may have to be changed to obtain maximum light output. To [...]

[...] ;0.1µF (104) C4 1µF 50V Q1 2SD400 Q2 2SB507 IC1 CD4013 R4 must vary with supply voltage. Otherwise Q1 heat up or not proper bias Q2. R4 ≈ (9×Supply Voltage)KΩ [...]

[...] no voltage appear between the fuse connection. However if the fuse is open or blown the full supply voltage appears between fuse connections. At this time the neon lamp will start to flash on and off. [...]

[...] and the voltage on the motor will be less than the voltages of the circuit above because the output voltage will be determined by the slight drop across the 1KΩ+220Ω and the voltage drop [...]

[...] circuits. So we need this type of protection circuit. 2P4M PIN configuration When the output voltage exceeds 6.2V, Zener diode conducts. That voltage will switch on SCR, so this provides a short [...]