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Milestone-Proposal:First Integrated PWM Controller for Switching Power Supplies

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{{ProposalEdit|a1=First Integrated PWM Controller for Switching Power Supplies|a2a=Texas Instruments, North Campus, 13532 North Central Expressway, Dallas, TX 75243|a2b=Dallas|a3=|a4=|a5=|a6=|a7=|a8=No|a9=|a10=|a11=No|a12=|a13name=|a13section=|a13position=|a13email=|a14name=|a14ou=|a14position=|a14email=|a15Aname=|a15Aemail=|a15Aname2=|a15Aemail2=|a15Bname=|a15Bemail=|a15Bname2=|a15Bemail2=|a15Cname=|a15Ctitle=|a15Corg=|a15Caddress=|a15Cphone=|a15Cemail=}}
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{{ProposalEdit|a1=First Integrated PWM Controller for Switching Power Supplies|a2a=Texas Instruments, North Campus, 13532 North Central Expressway, Dallas, TX 75243|a2b=Dallas|a3=1975|a4=This invention is of significant technological importance as it revolutionized the technology of power supply design,  ushering the industry into a conversion from large, heavy, and very inefficient linearly controled designs, to high-frequency switching solutions, a technology known before the advent of the SG1524, but ignored by all but the most sophisticated designers due to the perceived high cost, extreme complexity, and poor reliability – all of which disappeared with the introduction of the SG1524.
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With this product, switching power supplies became ubiquitous and pervasive throughout all forms of electronic systems, doing for electronic power supplies what Jack Kilby’s  invention of the integrated circuit did for computing systems.
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|a5=The SG1524 PWM controller IC was unique in its time as the semiconductor industry was then heavily involved in the advancement of digital computing circuits and what analog efforts there were, were largely relegated to operational amplifiers and linear voltage regulators.  At that point, the semiconductor industry was  committed to two separate processes – a gold-doped, high-speed digital process and a slower, more difficult to control analog process that had to be carefully separated from the digital manufacturing line.  Because the control of switching power supplies required both analog and digital functions, the biggest challenge of the time was the combining both functions into one chip to be built with a single process, and the introduction of the SG1524 was one of the first practical examples to prove that this was possible.
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Robert Mammano’s seminal IC design of the SG1524, and the many variations it inspired, tamed the complexity of SMPSs, shrinking their size and making them cost-effective and more reliable in countless applications.
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Revision as of 13:21, 11 June 2009

This Proposal has not been submitted and may only be edited by the original author.