Tait Limited TBA-H0 ユーザーズマニュアル

 

TB8100 Installation and Operation Manual

© Tait Electronics Limited December 2004

This section provides a brief description of the circuitry on the boost 
regulator board.  

Figure 1.1

 below shows the configuration for a 5W or 

50 W PA, along with the main inputs and outputs for power, RF and control 
signals.  Note that the 60 W board is only fitted to the 50W PA.  The circuit 
description for the rest of the PA is provided in the “Circuit Description” 
chapter.

The boost regulator board accepts an input of 12VDC nominal.  The input 
is firstly fed through the DC input filter, and is then fed through an output 
filter to provide the 12VDC (nominal) output for the reciter.  The output 
from the DC input filter is also fed to the power stage where the voltage is 
boosted to 28VDC, and is then fed through an output filter to provide the 
28 VDC output for the PA circuit boards.  

The battery control circuitry monitors the DC input voltage from the 
battery.  Protection is provided against the wrong input voltage being 
supplied.  The battery control circuitry also prevents deep discharge of the 
battery.

RF I/P +
PA Key

RF O/P

12VDC
I/P

12VDC O/P
(Reciter)

DC

28VDC

28VDC

RF

RF

Control &
Monitor

Control &

Monitor

Control &
Monitor

System
Control
Bus