880 Series Audio Distribution Amplifiers Instruction Manual
43
Preliminary—Contents are proprietary and confidential. Do not photocopy or distribute.
Chapter 13
882PS/884PS Power Supply Module
Overview
The model 882PS power supply is a two stage switching power supply that
provides the following outputs:
•
•
Initial design criteria focused on maximizing efficiency and minimizing
individual component temperature rise. This has been achieved with a two stage
design consisting of an input “Buck” converter feeding a high-efficiency.
push-pull output stage. Overall efficiency exceeds 80% and individual
component temperature rise is minimized by operating both converts at high
voltage and low current as well as using Schottky rectifier diodes on the output
stage. The power supply is designed to work over the two standard input voltage
ranges.
•
On the 882PS, the power supply operates over an input range of 85-135
VAC with jumper J1 installed and with jumper J1 removed the
operating range is 170-270 VAC.
•
On the 884PS, the power supply operates over an input range of 85-135
VAC when input selector switch S2 is in the 110 position, and when the
switch is in the 220 position the operating range is 170-270 VAC.
Output voltage is adjustable by
±
10%. Other output voltages can be achieved by
changing power transformer TR1 without any additional circuit changes.
Содержание 880 Series
Страница 1: ...Audio Distribution Amplifiers Instruction Manual Edition H P880 ADA MAN 880 Series ...
Страница 3: ...880 Series Audio Distribution Amplifiers Instruction Manual Edition H June 2004 ...
Страница 4: ......
Страница 14: ...xii 880 Series Audio Distribution Amplifiers Instruction Manual Contents ...