EDN

Audio bipolar transistors achieve industry’s highest voltage

Targeting the high power demands of high-end and professional audio applications, the MJL4281A (npn) and MJL4302A (pnp) audio bipolar transistors offer a sustained collector-to-emitter voltage of 350 ...
EDN

Simple PS voltage splitters based on audio amplifiers

Sometimes it is necessary to split a single power supply in two or more parts which are not necessarily equal. This is the case with 6-, 12-, 15-, 24-, 36- or 48-V power supplies from dry batteries or ...
Electronic Design

Test Saturation Voltage to Achieve High Efficiency

Efficiency is the name of the game in the design of power supplies. This is a major reason why switch-mode power supplies (SMPSs) are chosen for power-supply designs. However, even SMPSs have their ...
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 ...