The present invention relates to various embodiments of an improved high-speed corner flange connection member which is specifically shaped and designed to increase the clamping force applied to adjacent duct flanges when adjacent duct sections are connected together. A through-silicon-via structure extending through the thickness of the image sensor die is provided to electrically connect the bond pad. , and preferably between about 20-275 C. Drive circuit is preferably realized by a circuit arrangement that includes a standard pulse-width modulation integrated circuit. A fluid flow of the fluid displacement device is estimated in an estimator based on said torque and rotation speed of the electric motor and at least some fluid displacement device characteristics stored in a memory. Charger assembly 10 includes a member 50 which is selectively and removably insertable into a conventional electrical power outlet, effective to allow electrical power to be communicated to the charger assembly 10.