The present invention provides lossless switching by configuring the
output inductor so that the ripple current amplitude at load conditions
results in small negative current during switching. The reconfigured
output inductor results in increased ripple current amplitude. This
increased ripple amplitude may be further controlled using zero ripple
steering techniques to eliminate ripple at the output capacitor. A ripple
steering technique involves adding a secondary output to the class D
amplifier which steers the switching ripple away from the main output
thus substantially relieving the main output from a major artifact of
prior art Class D amplifiers.