output transistor การใช้

• DG = 0 for the output transistor, and both transistors are matched.
• Most often this would short out the output transistors.
• As the output transistors heat up, so does the thermal feedback transistor.
• This makes a total of 8 power-output transistors within the amplifier.
• B2 is the base current of the output transistor, " V"
• O of the output transistor results only for designs with " I"
• Thus, the amplifier increases efficiency by reducing the wasted power at the output transistors.
• Q1 is the pass or output transistor.
• A common variation omits the collector resistor of the output transistor, making an open collector output.
• It is determined by the upper output transistor V 3 operating in active region as an emitter follower.
• The secret behind the GBX sound was a coupling transformer separating the front end from the output transistors.
• By contrast, the standard two-transistor mirror operates down to the saturation voltage of its output transistor.
• In common designs, a voltage drop of about 10V is maintained over the output transistors in Class H circuits.
• This is generally limited by either power dissipation capability, or by the current carrying capability of the output transistor.
• Also, the driving circuit can have silicon diodes mounted in thermal contact with the output transistors to provide compensation.
• The use of fixed diode bias requires the diodes to be both electrically and thermally matched to the output transistors.
• Class-A amplifiers set their output transistors to be operated in their most accurate, and most inefficient, range.
• This difference is amplified by the op amp and fed to the base of output transistor " Q 2 ".
• The output transistors of solid-state amplifiers can be passively cooled by using metal fins called heatsinks to radiate away the heat.
• The output transistors of solid state amplifiers can be passively cooled by using metal fins called heat sinks to radiate away the heat.