Such as packaging, rectifier current, reverse voltage, what is the key parameter of engineers design need to know?

CodePudding user response:

Diode circuit configured to calculate a, such as a diode is several pathways, with several diodes

CodePudding user response:

Diode almost all of the features and parameters have specific application, in the mold used electric and electric concerns are very different,
Number of electricity: mainly switch characteristics, positive pressure drop, switch frequency, forward current, etc.,
The requirements of the electricity is more complicated, such as detection, rectifier, inverter and other concerns are different,

CodePudding user response:

(1) the largest reverse working voltage: diode work under normal temperature conditions allow plus maximum reverse voltage,
(2) the average rectifier current Io: diode work under normal temperature conditions is allowed by the biggest positive average current,
(3) the reverse current: diode under normal temperature conditions, and the reverse voltage, the reverse current through the diode,
(4) positive pressure drop (Vf) : diode through the forward current rating, the resulting voltage drop between the poles,
(5) reverse recovery time TRR) : the end of the diode, from conduction to shut off the time,
(6) the maximum power: in the diode current to flow through, can heat absorption, and make its temperature, maximum power P as the maximum power, is at the ends of the diode voltage multiplied by the flow of current
(7) voltage value (typical) : diode breakdown, the voltage at the ends of the basic remains the same, to achieve the effect of voltage regulator, tend to have a voltage range
(8) polarity: diode unidirectional conductivity, current can only flow from diode of the anode, cathode,
(9) the types of diode: the type of diode,
(10) working frequency: diode work the upper limit of frequency,
(11) encapsulation/specification: the pin, the circuit on the silicon wafer with wires connect to external junction, in order to connect to other devices,
(12) appearance size: the appearance of the diode size, size,
As a electronic engineer, you in terms of product design, is about how to choose the most optimal components? You have encountered any problems on components selection? We try to vote

CodePudding user response:

Did a few years hardware development, from the perspective of different application about diode selection: 1, reverse connect protection or DC/DC the large current, using schottky diode, 2, use high frequency signal switching diode, 3, power input surge with TVS diode, 4, interface protection such as RS232 use ESD diode,