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Modèle:
1760
Date:
Catégorie:
Groupe:
Description:
Triple Output DC POWER SUPPLY
Information
The B+K Precision Model 1760 Triple Output DC Power supply
is a high quality, general purpose dc power source. It
provides two supplies with a 0-30 volt dc output and one
with a 4-6.5 volt dc output. The 0-30 V supplies are
adjustable with both coarse and fine voltage controls for
precise settability and are capable of current output of 0-2
amps. The 4-6.5 V supply has a current output of 0-5 amps,
allowing it to handle extensive digital logic circuitry. Two
large panel-mounted LED meter displays can monitor either
the output current or output voltage of each supply.
The two 0-30 volt supplies can be operated independently or
in one of two tracking modes. In the ser ies tracking mode,
the “B” Supply tracks from 5% to 100% of the voltage of the
“A'’ Supply. Maximum current setting of the two supplies can
stil I be set independently when in the series tracking
operating mode. In the series tracking mode the “A” and “B”
supplies are connected in series, allowing a single output
of 0-60 V at up to 2 amps. In the parallel tracking mode,
the two supplies are connected together in parallel,
allowing a single 0-30 V output at up to 4 amps.
Both 0-30 volt supplies may be used in constant voltage or
constant current applications. The crossover from constant
voltage to constant current modes is smooth and automatic.
LED’s indicate the “CV” (constant voltage) or “CC” (constant
current) mode of operation. In constant voltage
applications, a current limit may be preset. When load
variations cause the current to reach the preset limit, the
unit then regulates output current rather than output
voltage. Current limits are adjustable from 5%; to 100% of
maximum. In constant current applications,
the maximum voltage may be preset. When load variations
cause current to drop below the regulated value, the unit
reverts to regulated voltage operation at the preset value.
The 4-6.5 V supply is ideal for powering digital logic
circuitry. The 0-5 amp capacity allows the supply to be used
for large circuits. Built-in overload protection
automatically limits the current output to a maximum of 5
amps. An indicator lights when the supply is overloaded.
The Model 1760 exhibits excellent regulation and low ripple
characteristics, The circuit design incorporates a
pre-regulator, which greatly reduces internal power
dissipation at low output voltages,
Reverse polarity protection prevents accidental damage to
the Power supply from improper connection to an external
voltage, and current limiting protects the equipment being
powered, as well as the Power supply.
The output is isolated from chassis and earth ground, which
permits full flexibility of connections. When needed, the
{+) or (-) polarity may be strapped to ground, or either
polarity may be floated to an external voltage.
Additionally, the two 0-30 volt supplies can be used as a
“split supply” with two positive voltages and a common
negative, two negative voltages and a common positive, or
one positive, one negative, and a common. Ail of these
configurations can be used with either matching (tracking)
or differing (independent) voltages.
The features and versatility of the unit, especially the
triple output and tracking features, make it an ideal
general purpose Power supply for engineering lab
applications. It can serve as a single or multi-voltage
power source, including the bias supply, for breadboard and
prototype circuits and equipment. It can provide single or
simultaneously varying voltages for circuit evaluation. It
can provide tracking (+) and (—) voltages for evaluating
differential amplifiers. It may be used as a battery
eliminator, or to power individual circuit boards or cards
while removed from the system. Its output can be evaluated
while powering a breadboard or prototype circuit to
determine the circuit’s Power supply requirements.
Type manuel:
Manuel de l'utilisateur
Pages:
48
Taille:
1.94 Mbytes (2029092 Bytes)
Langue:
english
Révision:
Manuel-ID:
Date:
Qualité:
Document scanné, tous les lisible.
Date de transfert:
2017 01 26
MD5:
95c1ad696683658874c868362d9babb4
Téléchargements:
732
Information
TEST INSTRUMENT SAFETY ... inside
front cover
INTRODUCTION ...
4
FEATURES ...
6
SPECIFICATIONS
...
7
CONTROLS AND
INDICATORS ...
9
General Controls and
Indicators ...
9
4-6.5 V Supply Controls and
Indicators ... 9
“A” Supply Controls and
Indicators ... 11
“B” Supply Controls and
Indicators ... 11
Rear Panel
Controls ... 12
OPERATING INSTRUCTIONS
... 13
Safety
Precautions ... 13
Equipment
Precautions ...
13
Independent Use of “A” Or “B”
Supply ... 13
Series Tracking
Operation ... 21
Parallel Tracking
Operation ...
25
4-6.5 V Power supply Operation
... 28
page
APPLICATIONS ... 32
General ... 32
Electronics
Servicing ...
32
Electronics
Manufacturing ...
32
Electronics Design
Lab ...
33
Electronics
Education ...
33
Battery
Charging ... 33
Split Supply
...
33
MAINTENANCE ... 40
Fuse
Replacement ... 40
Line Voltage Conversion
... 40
Adjustments
... 42
“A” Supply and “A’’ Metering
Adjustments ... 42
4-6.5 V Supply and 4-6.5 V Metering
Adjustments ... 44
“B” Supply and Metering Adjustments
... 44
“B” Series Tracking
Adjustment ...
45
Instrument Repair
Service ... 45
WARRANTY SERVICE INSTRUCTIONS
... 47
LIMITED TWO-YEAR
WARRANTY ... 48