Description
Brushless DC electric motor (BLDC motors, BL motors) also known as electronically commutated motors (ECMs, EC motors), or synchronous DC motors, are synchronous motors powered by DC electricity via an inverter or switching power supply which produces an AC electric current to drive each phase of the motor via a closed loop controller. The controller provides pulses of current to the motor windings that control the speed and torque of the motor.
Description
This report studies the figure skating equipment, which includes the Figure Skate Boots, Figure Skate Blades and Figure Skates. Not similar with the common shoes, people should run in and adapt to figure skating equipment, which means they need to endure pains, and the equipment usually be changed for every 1-3 years. Also, the figure skating equipment is usually much expensive than the ordinary sport shoes.
Description
Body-worn video cameras are valuable tools that can be used by law enforcement to record traffic stops, arrests, sobriety tests, and interviews. Body-worn video camera systems typically consist of a camera, microphone, battery, and onboard data storage. They are designed to be head-mounted or worn at various locations on the body, depending on the model.
Description
This report studies the Semiconductor Photolithography Equipment market. Semiconductor lithography, also called semiconductor photolithography, is a method of fabrication of printed circuit boards (PCBs) and microprocessors. It transfers a circuit image to a silicon wafer by exposing both silicon wafer and photomask to ultraviolet light and then projects the circuit image on the wafer. The shorter replacement cycles for electronic devices is a key factor driving the market growth.