Electronics Help Care electronics circuit diagram
Amplifier circuit 10 Pairs transistors:
This is an Amplifier circuit with 10 Pairs of transistors. One pair can make 100 watts. here 10X100=1000 watts. Here, we can use a maximum voltage of 70-0-70 and 15 amperes. positive, negative, and ground voltage. 70X15=1050 watts. 2sc5200 and 2sa1943 are used in this circuit board.
Details about 2SC5200
2sc5200 Polarity is NPN. Max Collector Power Dissipation is 150 Watts. The Max Collector-Base Voltage is 250 Voltage. Max Collector-Emitter Voltage is 250 Voltage. The Max Emitter-Base Voltage is 5 Voltage. Maximum Collector Current is 17 amperes.
Details about 2SA1943
2sa1943 Polarity is PNP. Max Collector Power Dissipation is 150 Watts. The Max Collector-Base Voltage is 250 Voltage. Max Collector-Emitter Voltage is 250 Voltage. The Max Emitter-Base Voltage is 5 Voltage. Maximum Collector Current is 17 amperes.
Here we can see that the maximum voltage is 250 voltage can throw the Emitter and Collector. and the Base can take 5 voltages. and the voltage ampere can take a maximum of 17.
This circuit doesn’t have speaker protection. here need a speaker protection circuit. here is the link to get the speaker protection circuit. Diagram is here
This is the Speaker protection circuit diagram. It can protect our Speaker from the burn. if the amplifier has any problem then this circuit can save our soundbox. Normally when the transistor makes a short circuit the voltage comes out from the speaker output line then this circuit protects that voltage. This circuit should not allow any direct voltage to be sent to the speaker. This circuit is very important for protecting the speaker.
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