Typical Crown Grounded Bridge Amplifier Basic Block Diagram - Crown Macro-Tech MA-2402 Service Manual

130445-1 Rev. A
BGS
BALANCED
-1
INPUTS
Figure 4.3 Typical Crown Grounded Bridge Amplifier Basic Block Diagram (One Channel Shown)
©2000 Crown International, Inc.
TRANSLATOR
ERROR
VGS
AMP
PROTECTION
TRANSLATOR
+LVA
+VOLTAGE
-1
OUTPUT
DEVICE
EMULATION
-VOLTAGE -LVA
-1
MAIN NEGATIVE FEEDBACK (NFb) LOOP
-1
INVERTING
BRIDGE
BALANCE
MA-2402 Service Manual
POSITIVE
HIGH SIDE
OUTPUT
NPN STAGE
HIGH SIDE
BIAS
SERVO
NEGATIVE
HIGH SIDE
OUTPUT
PNP STAGE
POSITIVE
LOW SIDE
OUTPUT
NPN STAGE
LOW SIDE
BIAS
DIODE
STRING
NEGATIVE
LOW SIDE
OUTPUT
PNP STAGE
Circuit Theory 4-5