SECTION 1. GENERAL
1-1.Description
The PAB-A Regulated DC Power Supply is an automatic constant-voltage/
constant-current transfer type of power supply with an auto-range
display meter (3-1/2 digits, liquid crystal display).
The output voltage and output current can be displayed by selecting
them with the switch on the front panel. An external voltage also
can be. displayed with the meter as an input terminal for such signal
is provided on the front panel (except the PAB250-0.25A and PAB.350-0.1A
which have no external voltage measuring function).
The control circuit is amonolithic IC ba.sed circuit. It employs a
temperature compe.nsation type of reference diode, metal film resistors
of excellent temperature coefficient, and wire wound potentiometers,
thereby realizing stable output characteristics.
The output switch is an electronic switch which causes no chattering
or otl'ier noise and which can be electronically remote-controlled.
When the output switch is off, the output voltmeter indicates the
value corresponding to the voltage setting knob, facilitating the
voltage, preset operation.
The. FINE VOLTAGE setting control can be changed to that for current
setting control by changing the internal connector .setting. The
PAB110-0.6A, PA132.50~0.25A and PAB350-0.1A have no FINE VOLTAGE setting
control.
The operation mode is clearly identified between the CV mode (constant-
voltage mode) and the CC mode (constant-current mode) with the LEDs on
the front panel.
In order to be usable as asy.stem component of an automation system,
the PAB-A Series Power Supply has on Its rear panel the remote-control
terminals for control of the output voltage or output current with an
external control voltage signal. The full-scale adjustment can be
accomplished from the front panel. The remote /local selector .switch,
