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Power Supply Block Diagram H. Chan; Mohawk College 1 Half-Wave Rectifier V = 2 V −0.7 V dc = V ⎛1− ⎝ 0.00833⎞ RLCF ⎠ V = t 0.0048V RLCF H. Chan; Mohawk College 2 Full-Wave Rectifier V = 0.707V −0.7 V dc = V ⎜1− ⎝ 0.00417 RLCF ⎟ ⎠ V = t 0.0024V RLCF H. Chan; Mohawk College 3 Bridge-Type Rectifier V = 2 V −1.4 V dc = V ⎜1− ⎝ 0.00417 RLCF ⎟ ⎠ V = t 0.0024V RLCF H. Chan; Mohawk College 4 More Equations . . . Rearranging the previous equations: VP = Vdc + 1.736 V The ripple voltage as a percentage of the dc voltage is: % ripple Vr Vdc x100 The diode(s) must be rated to withstand the surge current: Isurge = VP RW where RW is the transformer winding’s resistance given by: RW = NL FL FL H. Chan; Mohawk College 5 ... - tailieumienphi.vn