310 DC Power Supply Instruction Manual
1310 DC POWER SUPPLY Operation Manual GLOBAL SPECIALTIES 22820 Savi Ranch Parkway Yorba Linda, CA 92887 80-01-0538 S/90 M-00367 EDITION : 1 ( JAN., 2012 ) TEL.: (800) 572-1028 FAX.
TABLE OF CONTENTS SECTION DESCRIPTION PAGE NO.
ABOUT GLOBAL SPECIALTIES Thank-you for selecting a GLOBAL SPECIALTIES product. You won’t be disappointed ! Because we’ve never strayed from our original founders’ simple ideal, lower the high cost of electronic design and testing. Over the years, we’ve offered you electronic testing and prottyping equipment that was engineered for the processinal, but economically priced. The “best for less”, never compromising quality in order to give you, our customer, a real value.
PCB Components 1310-PS-MAIN PCB ======================================================================= Ref Designator Value ======================================================================= CAPACITORS C1 22µF, 50V, ELE C2 22µF, 50V, ELE C3 1000µF, 35V, ELE C4 0.1µF, 100V, MP C5 22µF, 16V, ELE C6 0.1µF, 100V, MP C7 22µF, 16V, ELE C8 0.1µF, 100V, MP C9 4700µF, 16V, ELE C10 0.1µF, 100V, MP C11 22µF, 16V, ELE C12 22µF, 16V, ELE C13 0.1µF, 100V, MP C14 2200µF, 35V, ELE C15 0.
SECTION - 2 SPECIFICATIONS POWER REQUIREMENTS : 108 to 132V AC, 50 to 60Hz ( 215 to 250VAC, 50 to 60Hz model available ) OUTPUTS ( All floating via Transformer Isolation ) : 5V Power Supply : Voltage : 5V DC ( ±0.2V ) fixed. Current : 1.0A Maximum. Regulation : Line : 0.2%. Load : 1.0%. Ripple : 0.1% 5mV Maximum Voltage : 1.3 to 20V DC (continuously variable) Current : 250mA Maximum. Regulation : A Power Supply : Line : 0.1%. Load : 0.2%. Ripple : 10mV Maximum.
The board can now be removed by lifting the PC board, front panel, and rear panel straight upward from the case as a unit. If desired, the connectors may be unplugged from the PC board to facilitate service; note the position of each connector and mark them to ensure proper reassembly. 6.4 CASE REASSEMBLY : The reassemble the case, refer to figure 7 ( Case Assembly ) and proceed as follows: 1. Remove all connections to the binding posts and unplug the 1310 from the AC supply.
SECTION - 3 OPERATING INSTRUCTION 3.1 LOCATION & DESCRIPTION OF OPERATING CONTROLS : The properly use the full capabilities of the 1310, it is highly recommended that the user become familiar with the instrument's controls and their function ( See figure 1 ). 1- Power ON / OFF Switch : Rocker Switch. The digital display will light to indicate power is on. 2- A Adjust Control : Adjust the output voltage of a supply from 1.3 to 20 volts. Clockwise rotation increases the voltage.
4) 7- Flip-up Leg : Easily raised or folded, this will elevate the front of the power supply approximately 1 inche for better visibility. 8- Ground terminal : Binding post connected to the chassis and to earth ground through the third wire of the AC power line cord. 9- B Terminals : Output terminals for variable supply B. The red terminal is positive ( + ); the black terminals is negative ( - ). 5) Adjust trimpot R58' to obtain a reading of 100.0 millivolts.
3.3 3.4 3.5 PRECAUTIONS : The Power supply is ideally suited to virtually any type of IC breadboarding from TTL, CMOS, and ECL to op-amps, audio and video amps, phase-locked loops, and microprocessor circuitry. However, certain normal breadboarding precautions should be taken to avoid ground loops and inadvertent loading. Observance of correct load polarity is also important, since most ICs may be damaged by improper power supply connections.
Specifications subject to change without notice. 3.7 !!Copyright 1994, INTERPLEX ELECTRONICS, INC, Unit No.2, Highland Industrial Centre 1486, Highland Avenue, Cheshire CT 06410, U.S.A. !!and TM trademarks are the property of INTERPLEX ELECTRONICS, INC, Unit No.2, Highland Industrial Centre 1486, Highland Avenue, Cheshire CT 06410, U.S.A.
3.11 Series Connection : The output of the variable supplies may be connected in seriess to provide a variable 2.6 to 40 Volt output at currents of up to 250 milliamps ( see figure 3 ). The total voltage may be determined by adding the separate voltage readings for each variable supply. Load current may be monitored from the output of either variable supply.
3.12 DIGITAL DISPLAY : Display of voltage and current is accomplished by U5' an ICL7107 3½ digit A / D converter LED display driver. Power for this device is supplied by a separate transformer, T1 . The center-tapped output of this transformer is full-wave rectified by diodes D1 through D4 and filtered by capacitors C1 through C4. The +5V supply, used only by U5' is created by U1' a 7805 three-terminal 5 volt regulator, whose output is further filtered by capacitors C5 and C7.
For best results, set the variable supplies to the desired voltage before any connections are made. If the current equalizing resistors are not well matched, current balance may be achieved by slightly unbalancing the supplies while measuring the current output of each supply. The voltage applied to the load must be moitored with an external meter, since the current balancing resistors will introduce a voltage drop, and will also adversely affect voltage regulation.