Junction Diode Symbol and Static I-V Characteristics:
diode as a rectifier
A rectifier is an electrical device that converts alternating current (AC), which
periodically reverses direction, to direct current (DC), which flows in only one
direction. The process is known as rectification. Physically, rectifiers take a
number of forms, including vacuum tube diodes, mercury-arc valves, solid-state
diodes, silicon-controlled rectifiers and other silicon-based semiconductor
switches. Historically, even synchronous electromechanical switches and motors
have been used. Early radio receivers, called crystal radios, used a "cat's
whisker" of fine wire pressing on a crystal of galena (lead sulfide) to serve as a
point-contact rectifier or "crystal detector".
periodically reverses direction, to direct current (DC), which flows in only one
direction. The process is known as rectification. Physically, rectifiers take a
number of forms, including vacuum tube diodes, mercury-arc valves, solid-state
diodes, silicon-controlled rectifiers and other silicon-based semiconductor
switches. Historically, even synchronous electromechanical switches and motors
have been used. Early radio receivers, called crystal radios, used a "cat's
whisker" of fine wire pressing on a crystal of galena (lead sulfide) to serve as a
point-contact rectifier or "crystal detector".
No comments:
Post a Comment