What is the maximum frequency to use rectifier, Schottky or Zener diodes for cut off sin wave to square wave?
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\$\begingroup\$ Depends on the diode. What does the datasheet say about trr or junction capacitance? \$\endgroup\$– winnyCommented Feb 23, 2020 at 18:29
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1\$\begingroup\$ Depending on the device, up to THz. You need to know the capacitance, carrier lifetime, transit time, etc. See cdn.macom.com/applicationnotes/AG312.pdf \$\endgroup\$– DrMoishe PippikCommented Feb 23, 2020 at 18:32
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\$\begingroup\$ In theory no idea depends on the limits of physical chemistry. In practice which diode? Reverse recovery time, junction capacitance and a lot of other factors play a role in determining this. If you have a specific diode in mind which? Add a link to the data sheet in the question and we may be able to provide more help. \$\endgroup\$– Warren HillCommented Feb 23, 2020 at 18:40
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\$\begingroup\$ 0 Hz. You cannot make a square wave by cutting off a sine wave. But you can approximate a square wave, and then the maximum frequency depends on how closely you need to approximate a true square wave. \$\endgroup\$– Bruce AbbottCommented Feb 23, 2020 at 19:24
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2 Answers
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HP used to sell its 5082_2935 schottky (and others) with 100 picosecond time constants
answered Feb 23, 2020 at 21:19
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It depends on the type of diode used, for example;
- The frequency rating of the diode
- The material the diode is made of
- the type of diode you want to use
- rectifier diodes= low freq
- shottky diodes= medium freq
- RF diodes = high freq
