Smooth, quiet motion: The DRV8846's 1/32 micro-stepping indexer, coupled with adaptive current regulation, provides minimal current ripple
, which enables smooth, precise motion profiles and reduced acoustic noise.
Time integral of this voltage vector is called stator flux ripple, which is a measure of the line current ripple
with the applied PWM strategy -.
The device helps increase system reliability by incorporating a unique 180 degree interleaving method, which reduces the amount of input and output current ripple
and distributes the magnetics to improve thermal management.
The iW3626 allows SSL designers to reduce their bill of materials (BOM) cost as much as 20%(1) compared to competitive solutions and is believed to be the first SSL LED driver to offer an on-chip, user-configurable power factor correction (PFC) to manage the trade-off between PFC and output current ripple
Together, the TPS92410 and TPS92411 feature driver and LED circuit protection while providing an inductor-free, low LED current ripple
Clock-out function allows the device to operate as a system synchronization master to other ADP1853 devices eliminating potential "beat" frequencies and reducing input current ripple
using phase-shift synchronization.
Low LED current ripple
results in efficient LED utilization as compared with "tapped linear" drivers.
The regulators' ripple rejection of 65dB at 1kHz minimizes supply current ripple
in the face of changes in input voltage or load and their excellent transient response enhance overall system response.
180-degree out-of-phase switching reduces input current ripple
by up to 50 percent.
The regulator's high ripple rejection of 65dB ensures supply current ripple
is minimized in the event of input voltage transients or dramatic changes in load, while its fast transient response characteristics enable improvements in overall system response times to be achieved.
Peak current control provides low LED current ripple
to minimize stroboscopic effects.
To improve transient response, inductance must be reduced; however, this reduction causes an increase in current ripple
per phase which results in a decrease in efficiency.