1 34. 2  34 Converting AC to DC Thyristor A primary function of a DC drive, such as the SIMOREG 6RA70 DC MASTER, is to convert AC voltage into a variable DC voltage. 3  It is necessary to vary to DC voltage in order to control the speed of a DC motor. 4  A thyristor is one type of device commonly used to convert AC to DC. DC motors were the first practical device to convert electrical energy into mechanical energy. 2  DC motors, coupled with DC drives such as the Siemens SIMOREG 6RA70, have been widely used in industrial drive applications for years, offering very precise control.
Cerissa /ce-ris-sa/ [3 sylls.] as a girls' name. Cerissa's roots are English and French, and the name Cerissa means cherry. Cerissa is an alternate spelling of Cerise (English, French): modern coinage from French cerise. Compare surname Christa.
Larissa /lar-is-sa/ [3 sylls.] as a girls' name is pronounced la-RISS-ah. It is of Latin origin, and the meaning of Larissa is cheerful. Variant of Lara; from the same root as Hilary.Popular in Russia.Kreatif forms: Laurissa, Liarissa.hown below is an analysis of the popularity of the girl name Larissa and corresponding names. Lara (#824 the previous year) , Lissa, Hilary and Hillary are the popular variation forms of Larissa rated in the Top 1000.