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In 2007, FSP Technology Inc. (Taiwan) acquired Protek Power (Taiwan) that makes medical power supplies. [2] Therefore, FSP Group now consists of Fortron/Source Corp. (USA), FSP Technology Inc. (Taiwan, public listed company, stock code 3015) and Protek Power (Taiwan). FSP Group's major power supply product lines include: PC / Industrial Power ...
When Intel developed the ATX standard power supply connector (published in 1995), microchips operating on 3.3 V were becoming more popular, beginning with the Intel 80486DX4 microprocessor in 1994, and the ATX standard supplies three positive rails: +3.3 V, +5 V, and +12 V. Earlier computers requiring 3.3 V typically derived that from a simple ...
height: 0.7–1.4 inches (18–36 mm) The HP-67 is a magnetic card-programmable handheld calculator , introduced by Hewlett-Packard in 1976 at an MSRP of $450. [ 1 ] A desktop version with built-in thermal printer was sold as the HP-97 at a price of $750. [ 2 ]
The ATX specification requires the power supply to produce three main outputs, +3.3 V, +5 V and +12 V. Low-power −12 V and +5 V SB (standby) supplies are also required. The −12 V supply is primarily used to provide the negative supply voltage for RS-232 ports and is also used by one pin on conventional PCI slots primarily to provide a ...
[2] [3] It has no expandability. The display provided better readability by increasing the digit size and adding commas. The entry-level was the HP-31E and 32E, that were not programmable; but even the 31E provided a Self-check. [4] The HP-37E and 38E/C were the financial models of the Spice series.
The values of the resistors are selected such that R 1 gives the highest load resistance, R 1 ||R 2 gives the nominal load resistance and either R 1 ||R 2 ||R 3 or R 2 ||R 3 gives the lowest load resistance. A voltmeter is then connected in parallel to the resistors and the measured values of voltage for each load state can be used to calculate ...
HP 48G calculator, uses RPL RPL [5] is a handheld calculator operating system and application programming language used on Hewlett-Packard 's scientific graphing RPN (Reverse Polish Notation) calculators of the HP 28 , 48 , 49 and 50 series, but it is also usable on non-RPN calculators, such as the 38 , 39 and 40 series.
In contrast, a linear power supply regulates the output voltage by continually dissipating power in the pass transistor. The switched-mode power supply's higher electrical efficiency is an important advantage. Switched-mode power supplies can also be substantially smaller and lighter than a linear supply because the transformer can be much smaller.