EDN

To bias or not bias: New audio output transistors make that decision easy

ThermalTrak integrates power output transistors with thermal bias diode. One of the major design concerns in the output section of a typical class AB audio amplifier is output bias and stability over ...
Ars Technica

Replacing output transistors

My neighbor has a Marantz 2265b receiver that blew fuses as soon as it was powered up. I did a little research and discovered that the output tranistors on one channel were blown.<BR>From what I ...
EDN

ON Semi’s output audio transistors eliminate thermal lag and bias in high-fidelity amps

Phoenix, Ariz. — Today On Semiconductor is using the International Consumer Electronics Showcase (CES) in Las Vegas to show off a new family of output audio transistors with internal bias control that ...
Ars Technica

Help me fix my amplifier- it has a blown output transistor, how do I tell which one it is?

There appears to be 16 large transisitors which were mounted to the heatsink of this amplifier. It is a Planet Audio 4 channel car audio amp. From some quick Google searching, it looks like I should ...
Hackaday

Biasing That Transistor: The Emitter Follower

Just as the common emitter amplifier and common base amplifier each tied those respective transistor terminals to a fixed potential and used the other two terminals as amplifier input and output, so ...
Electronic Design

Test Setup Checks Transistors’ hFEs When Tight Control Is Important

This file type includes high resolution graphics and schematics. The spread of h FE values in a batch of transistors may be wide enough to cause unreliable performance during mass production of a ...
Electronic Design

Power Transistors Warm Up To Thermal-Sensing Diodes

High-fidelity audio amplifiers consistently encounter a major hurdle: maintaining output bias while achieving thermal stability within the AB output section over the amp's full operating temperature ...