Rectigulator: A hybrid of rectifiers and regulators for miniature wirelessly powered bio-microsystems

摘要

At present, the existence of power decoupling capacitors is a bottleneck for the miniaturisation of wirelessly powered biomedical implants. To reduce the area of on-chip or off-chip decoupling capacitors, a new circuitry is proposed, called the `rectigulator??. By using two negative feedback channels in turn, the rectigulator directly converts an AC input to a well regulated DC output. Accordingly, the unregulated DC output of the conventional rectifiers no longer exists and the largest decoupling capacitor is deleted. Typically, the rectigulator makes the miniature wirelessly powered bio-microsystems 12% smaller.