ACT366YH-T データシートの表示（PDF） - Active-Semi, Inc

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ACT366YH-T

High Performance ActivePSR™ Primary Switching Regulator

Active-Semi, Inc 

TYPICAL APPLICATION CONT’D

the input capacitor ground lead, and the ACT366 G

pin to a single point (star ground configuration).

VFB Sampling Waveforms

ACT366 senses the output voltage information

through the VFB waveforms. Proper VFB waveforms

are required for IC to operate in a stable status. To

avoid mis-sampling, 1.0µs blanking time is added to

blank the ringing period due to the leakage

inductance and the circuit parasitic capacitance.

Figure 2 is the recommended VFB waveform to

guarantee the correct sampling point so that the

output information can be sent back into the IC to

do the appropriate control.

Figure 2:

1.0µs

ACT366

Rev 1, 14-Nov-12

Innovative PowerTM

-8-

www.active-semi.com

Copyright © 2012 Active-Semi, Inc.

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