參數(shù)資料
型號(hào)： UPC16318
英文描述： Useage of Three-Terminal Regulators | User＇s Manual[05/2000]
中文描述： 使用三端穩(wěn)壓器|用戶手冊(cè)[05/2000]
文件頁(yè)數(shù)： 14/35頁(yè)
文件大?。?/td> 187K
代理商： UPC16318
User’s Manual G12702EJ8V0UM00
21
13. Tracking regulator circuit
0.1 F
+ VIN
+ VOUT
C1
IN
OUT
GND
VIN
VOUT
0.1 F
C3
IN
OUT
GND
C2
C4
0.1 F
0.1 F
+
PC741
R1
R2
R1
R2
This power supply has superior tracking characteristics
due to using an op amplifier and one positive and one
negative voltage three-terminal regulator.
The GND pin of each three-terminal regulator is driven
in common by the op amplifier output.
Favorable tracking characteristics are obtained by
making R1 = R2. Moreover, bias current errors also can
be canceled if the resistor R1//R2 is added between the
non-inverting pin of the op amplifier and GND.
14. Positive and negative dual power supply circuit
(using positive voltage three-terminal regulators)
+ VOUT
IN
OUT
GND
D1
GND
IN
OUT
GND
D2
VOUT
This is a positive and negative dual power supply that
uses two positive voltage three-terminal regulators.
D1 and D2 are low forward voltage diodes that are
absolutely necessary. They prevent output voltage
pulldown due to discrepancies in the startup timing of
each regulator.
15. Wired OR
VIN1
VOUT
D1
D2
VIN2
D3
D4
When connecting the outputs of two or more three-
terminal regulators, do it so that voltage from outside is
not added to the regulator output at D1 and D3.
D2 and D4 are connected to compensate for the lowering
of output by D1 and D3.
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PDF描述
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