Data Sheet

TB6560AHQ/AFG
2014-10-01
19
12. Current Waveform in Fast Decay Mode
After the output current to the load reaches the current value specified by RNF, torque or other means, the
output current to the load will be fed back to the power supply fully in Fast Decay mode.
f
chop
CLK Signal Input
Fast Decay
Mode (100
%
Decay Mode)
Predefine
d
Curre
nt Level
I
OUT
NF
Since the predefined current level > output
current, current control mode is switched
from Charge mode → NF → Fast Decay
mode even in the next chopping cycle.
RNF
RNF
RNF
Predefined Current Level
Switches to Charge mode briefly