diode Power rating calculation

Discussion in 'General Electronics Chat' started by RF Engineer, Nov 21, 2012.

  1. RF Engineer

    Thread Starter New Member

    Nov 2, 2012
    Hello Everyone,

    I am working on Rectifier design and for that I am looking rectifier diode. Here some Tech details of the rectifier design:
    AC input: 30 Volts, @ f=40 MHz

    Required DC Output: 20 Volts , 100 mA so P(out) 2Watts.

    With above reference can I use Schottky Barrier Diode with Power Dissipation with Minimum Trace − 190 mW for this rectifier circuit ? Will it be possible for diode to handle 2Watts of power ?

    Can anybody suggest me something

    Thanking You,
  2. crutschow


    Mar 14, 2008
    Diodes are rated by voltage and current. So a Schottky diode with at least a 0.2A and 50V rating should work.

    But 30VAC RMS will give you about 42V peak output. How are you getting rid of the extra 20V?