Informations de l’équipement

Kepco APH SERIES Compteur de fréquence
Fabricant:
Modèle:
APH SERIES
Date :
2000
Catégorie :
Groupe:
Description :
POWER SUPPLY AUTOMATIC CROSSOVER

Informations

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 AMPLIFIERS 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 amplifiers (Main Voltage, Internal Current Control, External Current Control) via the gating circuit, which permits only one Amplifier to take control of the APH output.

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Manuel de l'utilisateur
Type manuel:
Manuel de l'utilisateur
Pages :
33
Taille:
1.73 Mbytes (1810531 Bytes)
Langue :
english
Révision:
Manuel-ID:
Date :
Qualité:
Document scanné, tous les lisible.
Date de téléchargement:
14 août 2015
MD5:
7fb10a2da3df218409f82cfe32151657
Téléchargements:
497

Informations

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

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