Kepco - APH SERIES - Power Supply
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Equipment:
APH SERIES
Date:
2000
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Information
Kepco Series APH Power Supplies are high voltage, low
current, precision-stabilized d-c sources of approximately
twenty watts of d-c output power. Their important design
features include:
a) AUTOMATIC CROSSOVER BETWEEN VOLTAGE AND CURRENT
STABILIZATION MODE OF OPERATION WITH VISUAL FRONT PANEL
(LED) MODE INDICATORS.
b) PRECISION, TEN-TURN FRONT PANEL OUTPUT VOLTAGE AND OUTPUT
CURRENT CONTROLS.
c) RECESSED FRONT PANEL OUTPUT METERS PERMIT THE
SIMULTANEOUS MONITORING OF OUTPUT VOLTAGE AND OUTPUT CURRENT.
d) FRONT AND REAR OUTPUT TERMINALS WITH REMOTE SENSING
PROVISION, ALLOW PRECISION STABILIZATION AT A DISTANT LOAD.
e) PROGRAMMING TERMINALS PERMIT ACCESS TO A BUILT-IN,
INDEPENDENT PREAMPLIFIER, TO THE VOLTAGE CONTROL AND MAIN
VOLTAGE Amplifier AND TO A SEPARATE CURRENT CONTROL Amplifier A MODE FLAG SIGNAL OUTPUT (TTL COMPATIBLE), AS
WELL AS TWO D-C REFERENCE SOURCES (±6.2 volts at 1mA MAX.)
REFERENCED TO COMMON (+ SENSE) ARE PROVIDED.
1-5 The APH Power Supply cart, in simplified form, be
electrically represented by the fold-out diagram in Section
ill of this manual (see FIG. 3-15 at the end of Section
111). A high voltage, low current d-c source is controlled
by a series pass element (vacuum tube), which in turn is
controlled by the driver circuit via the voltage channel or
the current channel. The driver is connected to three
contro1 Amplifier (Main Voltage, Internal Current Control,
External Current Control) via the gating circuit, which
permits only one Amplifier to take control of the APH output.
1 Manual
User manual
Manual type:
User manual
Pages:
33
Size:
1.7 MB
Language:
english
Revision:
Manual-ID:
Date:
Quality:
Scanned document, all readable.
Upload date:
Aug. 14, 2015
MD5:
7fb10a2d-a3df-2184-09f8-2cfe32151657
Downloads:
690
Information
SECTION I - INTRODUCTION
1-1 Scope of Manual
...1-1
1-3 General Description
...1-1
1-7 Specifications, General
...1-1
1-8 Specifications,
Performance...1-2
1-11 Miscellaneous Features
...1-3
1-12 Specifications, Mechanical
...1-3
SECTION II - INSTALLATION
2-1 Unpacking and
Inspection...2-1
2-3
Terminations...2-1
2-4 A-C Power
Requirements...2-2
2-6
Grounding...2-2
2-9 Cooling
...2-2
2-11 Functional Check
...2-2
2-14 Installation
...2-3
2-16 Load
Connection...2-4
SECTION III - OPERATION
3-1 General
...3-1
3-4 Standard Voltage Mode Operation,
Local (Front Panel) Control
...3-3
3-6 Standard Current Mode Operation,
Local (Front Panel) Control
...3-3
3-8 Remote Control of the APH Output
(General)...3-3
PROGRAMMING THE VOLTAGE CONTROL CHANNEL
3-10 Output Voltage Control by External
Resistance...3-5
3-22 Output Voltage Control by Means of
an External Control Voltage
...3-7
PROGRAMMING THE CURRENT CONTROL CHANNEL
3-26 Output Current Control by External
Resistance...3-9
3-36 Output Current Control using
an External Signal Voltage
...3-12
SECTION IV - THEORY OF OPERATION
4-1 Simplified Diagram Discussion
...4-1
4-8 Circuit
Description...4-3
SECTION V - MAINTENANCE
5-1 General
...5-1
5-3 Cover
Removal...5-1
5-5 Internal Adjustment Procedures
...5-2
5-7
Troubleshooting...5-3
5-11 Power Supply Performance Measurements
...5-4
SECTION VI - PARTS LIST AND DIAGRAMS
6-1 General
...6-1/6-2
6-3 Ordering Information
...6-1/6-2