Chapter 2 — Operation
Output and Supply Connections
Preamplifiers Types 2663 and 2663 B
Brüel & Kjær
12
Fig.2.7
Dual-polarity DC supply, signal-input and -output connections with Types 2663/2663 B
The use of a dual-polarity supply with voltage exceeding 20 V is generally preferred
as better suppression (<60 dB at 1 kHz) of mains-carried noise and common-mode
signals is obtained. With dual or single-polarity supplies providing less than ±20 V (or
+20 V), the built-in voltage stabiliser circuit of the preamplifier follows the line volt-
age of the supply.
Fig.2.8
Single-polarity DC supply, signal-input and -output connections with Types 2663/2663 B
+
-
+
-
E
D
C
B
A
F
Signal Ground
AC Output
DC Output
Preamplifier
2663
Chassis
Readout
±20V to ±32V
Dual Polarity
DC Supply
(max. 30mA)
Chassis only
to
mains Ground
Signal Ground
plus chassis
to
mains Ground
891981/1
+
-
+
-
E
D
C
B
A
F
Signal Ground
AC Output
DC Output
Preamplifier
2663
Chassis
Readout
±20V to ±32V
Dual Polarity
DC Supply
(max. 30mA)
Chassis only
to
mains Ground
Signal Ground
plus chassis
to
mains Ground
891982/1
Содержание 2663
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Страница 8: ...Preamplifiers Types 2663 and 2663 B User Manual BE 1068 12 1 Chapter 1 Introduction ...
Страница 12: ...Preamplifiers Types 2663 and 2663 B User Manual BE 1068 12 5 Chapter 2 Operation ...
Страница 30: ...Preamplifiers Types 2663 and 2663 B User Manual BE 1068 12 23 Chapter 3 Operating Characteristics ...
Страница 38: ...Preamplifiers Types 2663 and 2663 B User Manual BE 1068 12 31 Chapter 4 Accessories ...
Страница 43: ...Preamplifiers Types 2663 and 2663 B User Manual Brüel Kjær 36 ...
Страница 44: ...Preamplifiers Types 2663 and 2663 B User Manual BE 1068 12 37 Chapter 5 Specifications ...
Страница 46: ...Preamplifiers Types 2663 and 2663 B User Manual BE 1068 12 39 Chapter 6 Service and Repair ...
Страница 48: ...Preamplifiers Types 2663 and 2663 B User Manual BE 1068 12 41 Appendix A Ground Loop Noise ...
Страница 50: ...Preamplifiers Type 2663 and 2663 B User Manual BE 1068 12 43 Index ...
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