Chapter 3 Front-Panel Operation
Remote Voltage Sensing at the Front and Rear Terminals
50
Stability
8VLQJ#UHPRWH#VHQVLQJ#XQGHU#FHUWDLQ#FRPELQDWLRQV#RI#ORDG#OHDG#OHQJWKV#DQG#
ODUJH#ORDG#FDSDFLWDQFHV#PD\#FDXVH#\RXU#DSSOLFDWLRQ#WR#IRUP#D#ILOWHU/#ZKLFK#
EHFRPHV#SDUW#RI#WKH#YROWDJH#IHHGEDFN#ORRS1#7KH#H[WUD#SKDVH#VKLIW#FUHDWHG#E\#
WKLV#ILOWHU#FDQ#GHJUDGH#WKH#SRZHU#VXSSO\ªV#VWDELOLW\/#UHVXOWLQJ#LQ#SRRU#WUDQVLHQW#
UHVSRQVH#RU#ORRS#LQVWDELOLW\1#,Q#VHYHUH#FDVHV/#LW#PD\#FDXVH#RVFLOODWLRQV1#7R#
PLQLPL]H#WKLV#SRVVLELOLW\/#NHHS#WKH#ORDG#OHDGV#DV#VKRUW#DV#SRVVLEOH#DQG#WZLVW#
WKHP#WRJHWKHU1#$V#WKH#VHQVH#OHDGV#DUH#SDUW#RI#WKH#SRZHU#VXSSO\ªV#SURJUDPPLQJ#
IHHGEDFN#ORRS/#DFFLGHQWDO#RSHQ0FRQQHFWLRQV#RI#VHQVH#RU#ORDG#OHDGV#GXULQJ#
UHPRWH#VHQVLQJ#RSHUDWLRQ#KDYH#YDULRXV#XQZDQWHG#HIIHFWV1#3URYLGH#VHFXUH#DQG#
SHUPDQHQW#FRQQHFWLRQV1
Remote Voltage Sensing Connections
&RQQHFWLRQV#EHWZHHQ#WKH#SRZHU#VXSSO\#VHQVLQJ#DQG#RXWSXW#WHUPLQDOV#VKRXOG#
EH#UHPRYHG/#DQG#XVLQJ#VKLHOGHG#WZR0ZLUH#FDEOH/#WKH#SRZHU#VXSSO\#VHQVLQJ#
WHUPLQDOV#VKRXOG#EH#FRQQHFWHG#WR#WKH#ORDG#DV#VKRZQ#LQ#)LJXUH#6051#'R#QRW#XVH#
WKH#VKLHOG#DV#RQH#RI#WKH#VHQVLQJ#FRQGXFWRUV#DQG#WKH#RWKHU#HQG#VKRXOG#EH#OHIW#
XQFRQQHFWHG1#&RQQHFW#RQH#HQG#RI#WKH#VHQVLQJ#OHDG#VKLHOG#WR#WKH#FKDVVLV#JURXQG#
+
⊥,#RQO\1#2SHQLQJ#D#VHQVLQJ#OHDG#FDXVHV#WKH#SRZHU#VXSSO\#RXWSXW#YROWDJH#WR#
GHFUHDVH#DW#WKH#ORDG#OHDGV1#2EVHUYH#SRODULW\#ZKHQ#FRQQHFWLQJ#WKH#VHQVLQJ#OHDGV#
WR#WKH#ORDG1
)RU#ORFDO#YROWDJH#VHQVLQJ#FRQQHFWLRQV/#WKH#+.,#DQG#+0,#VHQVH#WHUPLQDOV#PXVW#EH#
FRQQHFWHG#WR#WKH#+.,#DQG#+0,#RXWSXW#WHUPLQDOV#UHVSHFWLYHO\1
Note When you make the remote voltage sensing connections at the front or rear panel
terminals, make sure to disconnect all the connections to the load and sense leads
at the other end terminals. Do not make the sensing connections at both front and
rear terminals at the same time. It will cause to damage the power supply seriously.
Figure 3-2. Remote Voltage Sensing Connections