Different type diode is in in the diode of graphic symbol _ in circuit the label method in circuit
Diode (full name is semiconductor diode) it is a kind of commonly used semiconductor device that has tie of a PN, it has one-way conductivity, the electricity that carries diode can flow along a direction only. The ability after diode is reaching fair value to voltage in what add only guides.
In actual electron product or equipment, diode is in with its actual exterior configuration installation various circuit board on, and pursue medium at the electronic circuit of this electron product or equipment in correspondence, diode is replaced with appropriative graphic symbol, the diode on circuit board and the graphic symbol that electronic circuit pursues medium are one to one correspondence, following graphs:
1, the graphic symbol that identifies diode
Place laying a plan shows the graphic symbol that pursues medium in electronic circuit for common diode, call circuit the symbol again. Can see, it is main by the small triangle, perpendicular line that represents negative pole and two derivative lines are formed, small triangle and the graphic symbol that state the perpendicular line of negative pole is diode (the structure that is equivalent to knot of the PN inside diode simplifies graph) , two derivative lines are equivalent to two of diode citing a base, by graphic symbol two end are extended, the electric line in pursueing with circuit connects, make electronic line.
2, the graphic symbol that knows different type diode
In applying actually, the type of diode is varied, corresponding graphic symbol also is distinguished somewhat, accordingly, understand the graphic symbol of the diode of different type, the type of the diode in giving electronic circuit to pursue to accurate identifying has important sense.
The graphic symbol of common diode, appearance and function pursue as follows
The circuit that identifies diode marks
Diode is divided normally in the label in electronic circuit for two parts, one part is graphic symbol, the type of label diode; Another part is a letter + number, label this diode reachs the information such as model parameter in the name in circuit, serial number.
Following plan institute show the circuit label method of typical diode
Graphic symbol (circuit symbol) the main type that body revealed diode; Down-lead by graphic symbol two end are extended, the electric line in pursueing with circuit connects, make electronic line. The parameter information such as the category that integrated circuit marked to offer diode normally, name, serial number and diode model.
Know the label news that reads diode
The label of diode basically has ” diode name ” ” polarity of material the outer gate of a government office in ancient times ” ” type ” ” serial number ” ” norms date ” wait for pertinent information. Know the label news that reads diode, very important to circuit of our analysis, overhaul.
The electric guide of the diode in typical commutate circuit knows as above to pursue
If the circuit label that typical light accuses the diode in circuit of electronic birthday cake pursues