5. Care must be taken not to exceed the current reading, as the supplies will turn themselves off if overheated. 6. The Model XP-720 has an added feature of having the positive and negative supplies being able to be stacked to give up to 30V at 1 ampere.
XP-720 to give you years of trouble-free performance. The Model XP-720 Power Supply features three solid-state DC power supplies and a 12.6VAC center tapped output. The first two DC supplies consist of one positive and one negative 1.5 to 15 volts at 1 ampere. The third has a fixed 5V at 3 amperes.
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The 1N4001 has peak current rating of 10 amps. Regulator Circuit The regulator circuit in the Model XP-720 Power Supply consists of a LM-317 integrated circuit. This IC is specially designed to perform the regulation function. Figure 6 shows a simplified circuit of how the LM-317 IC works.
This concludes the discussion on the operation of the XP-720 Power Supply. Your power supply has been tested and conforms to our rigid requirements on performance and durability. It is guaranteed to be free of defects in workmanship, materials and construction for a period of 2 years. If this product should fail during normal use within the first 3 months from the date of purchase, Elenco will repair or replace the unit at no cost.
PARTS LIST DESCRIPTION RESISTORS 1/2W (red-violet-gold-gold) 1/4W (brn-gray-brn-gold) Potentiometer CAPACITORS 10 F Electrolytic 2,200 F Electrolytic 4,700 F Electrolytic SEMICONDUCTORS 1N4001 Diode 1N5400 Diode MPSA70 Transistor 2N6124 Transistor LM-317 IC LM-337 IC LM-7805 IC MISCELLANEOUS Transformer PC Board Fuse 1A Rocker Switch Cover Chassis...
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