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Re: Solid State Voltage and Current Regulator (fwd)
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To: "'Tesla List'" <tesla@pupman.com>
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Subject: Re: Solid State Voltage and Current Regulator (fwd)
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From: Tesla List <tesla@stic.net>
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Date: Mon, 5 Jan 1998 19:02:38 -0600
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Approved: tesla@stic.net
From: Harri Suomalainen[SMTP:haba@cc.hut.fi]
Sent: Monday, January 05, 1998 9:02 AM
To: tesla@pupman.com
Subject: Re: Solid State Voltage and Current Regulator (fwd)
>Date: Fri, 2 Jan 1998 22:34:20 -0700
>From: Bill Noble <william_b_noble@email.msn.com>
>To: Tesla List <tesla@pupman.com>
>Subject: Re: Solid State Voltage and Current Regulator
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>beware that if the transistors fail they will (typically) short, so
you will
>suddenly burst up to full power - this may not be a good thing.
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>also, you said "dissipates" 3 KW - did you really mean that it will
pass
>3KW??? I would hope the dissipation is much lower than 3KW.
The configuration that has been described has a transistor in the
series-pass configuration.
The transistor acts like a variable resistor! It will indeed
dissipate a lot of power. That's one
of the reasons I'm not fond of that approach even though it is very
simple one to build.
Some pwm approach would be much better.
--
Harri Suomalainen
mailto:haba@cc.hut.fi