![]() After a series of mergers, acquisitions, and spin offs (Computer Products, Zytec, Artesyn, Emerson Electric) the company is now part of Advanced Energy. 1970 Robert Boschert develops simpler, low cost circuits. 1970 Tektronix starts using High-Efficiency Power Supply in its 7000-series oscilloscopes produced from about 1970 to 1995. One of its applications is as a switched mode regulator. 1967 Bob Widlar of Fairchild Semiconductor designs the ♚723 IC voltage regulator. Starzec, from General Motors Company 1960s The Apollo Guidance Computer, developed in the early 1960s by the MIT Instrumentation Laboratory for NASA's ambitious moon missions (1966-1972), incorporated early switched mode power supplies. 1959 Transistor oscillation and rectifying converter power supply system U.S. The power MOSFET later became the most widely used power device for switching power supplies. 1959 The MOSFET (metal-oxide-semiconductor field-effect transistor) is invented by Mohamed M. 1936 Car radios used electromechanical vibrators to transform the 6 V battery supply to a suitable B+ voltage for the vacuum tubes. See Voltage regulator#Electromechanical regulators. 1932 Electromechanical relays are used to stabilize the voltage output of generators. The patent mentions high frequency welding and furnaces, among other uses. 1926 On 23 June, British inventor Philip Ray Coursey applies for a patent in his country and United States, for his "Electrical Condenser". Variations of this ignition system were used in all non-diesel internal combustion engines until the 1960s when it began to be replaced first by solid-state electronically switched versions, then capacitive discharge ignition systems. The Kettering ignition system is a mechanically switched version of a fly back boost converter the transformer is the ignition coil. Kettering and his company Dayton Engineering Laboratories Company (Delco) goes into production for Cadillac. ![]() 1910 An inductive discharge ignition system invented by Charles F. History 1836 Induction coils use switches to generate high voltages.
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