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yawijaya
Joined: 18 Aug 2009
Posts: 29
Location: New Freedom, PA-USA
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 24 Aug 2009 14:52 transistor switch |
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| Hi, i'm designing an RF amplifier, at one section of the circuits, the amplifier requires a switch. If i want to use power mos transistor for the switch, any suggestion on what type i should use?preferably if there's any orcad model and library come with it. Thanks
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jayce3390
Joined: 22 May 2007
Posts: 219
Helped: 9
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24 Aug 2009 15:09 power mos transistor |
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Hi,
Could you give more details? Where do you need a switch in your RF amplifier?
You can use MOS as a switch but you need a gate driver circuit to switch it.
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yawijaya
Joined: 18 Aug 2009
Posts: 29
Location: New Freedom, PA-USA
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24 Aug 2009 15:33 mos transistor switch |
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Here, you can take a look in it.Thanks
Added after 14 minutes:
an also some correction:PIN 3 of M2 is not grounded
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jayce3390
Joined: 22 May 2007
Posts: 219
Helped: 9
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25 Aug 2009 8:39 dmos transistor switch |
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| to chose your MOS transistor, we need to know bias voltage requirement, and what is the operating frequency of this amplifier?
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25 Aug 2009 8:39 Ads |
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yawijaya
Joined: 18 Aug 2009
Posts: 29
Location: New Freedom, PA-USA
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25 Aug 2009 13:42 pmos transistor switch |
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| The bias is preferably between 2-3V, and the freq is at least 0.1-300Mhz
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