Patent ID: 9621096
Date: 2017-04-11
CPC Classifications: H02P,H04N

Claim:
1. A driver circuit for first and second voice coil motors (VCMs), comprising: an electrical current supply and switch network coupled to a first VCM node and a second VCM node, wherein the first VCM node is to conduct a first coil current through a first VCM, and the second VCM node is to conduct a second coil current through a second VCM; and a controller to signal the electrical current supply and switch network to: a) generate the first coil current and route a portion, not all, of the first coil current through the second VCM node when a commanded first VCM movement is greater than a commanded second VCM movement, and b) generate the second coil current and route a portion, not all, of the second coil current through the first VCM node when the commanded first VCM movement is smaller than the commanded second VCM movement.