TM 11-6625-2958-14&P
SECTION I
GENERAL INFORMATION
Figure 1-1.DC Power Supply, Model 6259B, 6260B, 6261B, 6268B, or 6269B
1-1DESCRIPTION
1-2 This power supply, Figure 1-1,is completely transistorized and suitable for either bench or relay rack operation. It is a well-regulated, constant voltage/constant current supply that will furnish full rated output voltage at the maximum rated output current or can be continuously adjusted throughout the output range. The front panel CURRENT controls can be used to establish the output current limit (overload or short circuit) when the supply is used as a constant voltage source and the VOLTAGE controls can be used to establish the voltage limit
(ceiling) when the supply is used as a constant current source. The supply will automatically cross over from constant voltage to constant current operation and vice versa if the output current or voltage exceeds these preset limits.
1-3 The power supply contains an added feature for protection of delicate loads. A limit can be set on the output voltage. If this limit is exceeded the output will automatically be shorted.
1-4 The power supply has rear output terminals. Either the positive or negative output terminal may be grounded or the power supply can be operated floating at up to a maximum of 300 volts above ground.
1-5 Output voltage and current are continuously monitored on two front panel meters.
1-6 TerminaIs located at the rear of the unit allow access to various control points within the unit to expand the operating capabilities of the power sup- ply. A brief description of these capabilities is given below:
a. Remote Programming. The power supply output voltage or current may be programmed (con- trolled) from a remote location by means of an external voltage source or resistarice.
b.Remote-Sensing. The degradation in regu- lation which occurs at the load due to voltage drop in the load leads can be reduced by using the pow- er supply in the remote sensing mode of operation.
c.Auto-Series Operation. Power supplies
