Agilent 1961-02 free download

File name 1961-02.pdf

HEWLETT-PACKARD JOURNAL T E C H N I C A L I N F O R M A T I O N F R O M T H E - d p - L A B O R A T O R I E S Vol. 12, No. 6 JBLISHED BY THE HEWLETT-PACKARD COMPANY, 1501 PAGE MILL ROAD, PALO ALTO, CALIFORNIA FEBRUARY, 1961 Two Versatile New Power Supplies for High Power Semiconductor Work TWO years ago -hp- introduced for tran can be set using front panel meters. sistor work a small regulated power Besides the current-limiting feature, the supply which had the property of limiting new supplies include a number of other con its output current to selectable values for veniences. They are externally program protection of the circuit under test. This mable so that they can be easily matched to power supply became very popular and has production-testing situations in which a se now led to the development of two addi quence of accurate, known voltages is re tional regulated supplies for higher power quired. The 2-ampere supply is arranged transistor use and similar applications. One with a second set of output terminals that of the new supplies provides currents up to enables the output voltage to be sensed and l/2 ampere at voltages from 0 to 40 volts, regulated at the load itself rather than at while the other provides currents up to 2 the output terminals. This feature thus over amperes at voltages from 0 to 60 volts. Both comes the loss in regulation caused by large supplies incorporate the automatic current- supply currents flowing in the hook-up leads. limiting feature in which maximum avail In addition to the above conveniences, both able output current can be prescribed by supplies have isolated output terminals, are front panel