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.
Erica is a genus of roughly 860 species of flowering plants in the family Ericaceae. The English common names heath and heather are shared by some closely related genera of similar appearance. The genus Calluna was formerly included in Erica â it differs in having even smaller scale-leaves (less than 2â3 mm long), and the flower corolla consisting of separate petals. Erica is sometimes referred to as winter (or spring) heather to distinguish it from Calluna summer (or autumn) heather.