HP Lab Series User Manual

•
•
•
SECTION I
GENERAL INFORMATION
1-1 DESCRIPTION
1-2 This power supply (see cover) is completely
transistorized and suitable for either bench or rack
operation. It is a compact, well-regulated, Con-
stant Voltage/Constant Current supply that will fur-
nish full rated output voltage at the maximum rated
output current or can be continuously adjusted
throughout the output range. The front panel CUR-
RENT 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 control can be used to establish the volt-
age limit (ceiling) when the supply is used as a
constant current source. The supply will automati-
cally crossover from constant voltage to constant
current operation and vice versa if the output cur-
rent or voltage exceeds these preset limits.
1-3 The power supply has both front and rear ter-
minals. Either the positive or negative output ter-
minal may be grounded or the power supply can be
operated floating at up to a maximum of 300 Volts
off ground.
1-4 A single meter is used to measure either out-
put voltage or output current in one of two ranges.
The voltage or current ranges are selected by a
METER switch on the front panel.
1-5 Barrier strip terminals located at the rear of
the unit allow ease in adapting to the many opera-
tional capabilities of the power supply. A brief
description of these capabilities is given below:
a. Remote Programming. The power supply
may be programmed from a
remote location by means
of an external voltage source or resistance.
b. Remote Sensing. The degradation in reg-
ulation which would occur at the load because of
the voltage drop in the load leads can be reduced
by using the power supply in the remote sensing
mode of operation.
c. Series and Auto-Series Operation. Power
supplies may be used in series when a higher out-
put voltage is required in the voltage mode of oper-
ation or when greater voltage compliance is required
in the constant current mode of operation. Auto-
Series operation pennits one knob control of the
total output voltage from a "master" supply.
d. Parallel and Auto-Parallel Operation. The
power supply may be operated in parallel with a
similar unit when greater output cuirent capability
is required. Auto-Parallel operation permits one
1-1
knob control of the total output current from a
"master" supply.
e. Auto-Tracking. The power supply may be
used as a "master" supply, having control over one
(or more) "slave" supplies that furnish various volt-
ages for a system.
1-6 SPECIFICATIONS
1-7 Detailed specifications for the power supply
are given in Table 1-1.
1-8 OPTIONS
1-9 Options are factory modifications of a stan-
dard instrument that are requested by the customer.
The following options are available for the instru-
ment covered by this manual. Where necessary, de-
tailed coverage of the options is included through-
out the manual.
Option No. Description
08 Current 10-Turn Pot: A single control
that replaces both coarse and fine cur-
rent controls and improves output set-
tability.
13 Three Digit Graduated Decadial Volt-
age Control: Control that replaces 10-
turn voltage control permitting accurate
resettability.
14 Three Digit Graduated Decadial Cur-
rent Control: Control that replaces
coarse and fine current controls permit-
ting accurate resetta bility.
28 230Vac Single Phase Input: Supply as
normally shipped is wired for llSVac
input.· Option 28 consists of reconnect-
ing the input transformer for 230Vac
operation.
1-10 ACCESSORIES
1-11 The accessories listed in the following chart
may be ordered with the power supply or separately
from your local Hewlett-Packard field sales office
(refer to list at rear of manual for addresses).
!@' Part No. Description
COS 8" Black Handle that can be attached
to side of supply.

HP Lab Series Specifications

General

Brand	HP
Model	Lab Series
Category	Power Supply
Language	English