Path: ...!npeer.as286.net!npeer-ng0.as286.net!peer02.ams1!peer.ams1.xlned.com!news.xlned.com!peer01.ams4!peer.am4.highwinds-media.com!news.highwinds-media.com!nntp.comgw.net!news.eternal-september.org!eternal-september.org!.POSTED!not-for-mail
From: Bill Sloman <bill.sloman@ieee.org>
Newsgroups: sci.electronics.design
Subject: Re: LTSpice model for a SiC MOSFET
Date: Mon, 19 May 2025 18:27:01 +1000
Organization: A noiseless patient Spider
Lines: 30
Message-ID: <100eq0l$1h4ca$2@dont-email.me>
References: <100c4og$t4lo$1@dont-email.me>
 <2l1k2ktmvp0ppum2ooegte9m2dlvlk1dhn@4ax.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 7bit
Injection-Date: Mon, 19 May 2025 10:27:02 +0200 (CEST)
Injection-Info: dont-email.me; posting-host="ce5aaf6936c6909f88ba6fd07b08faf9";
	logging-data="1610122"; mail-complaints-to="abuse@eternal-september.org";	posting-account="U2FsdGVkX1+DDwRVDJbm1snH/jpRnrml0gMGK4Dxudo="
User-Agent: Mozilla Thunderbird
Cancel-Lock: sha1:JsY5SsH8tCo79tlUJrF9agzKLxM=
X-Antivirus: Norton (VPS 250518-4, 18/5/2025), Outbound message
X-Antivirus-Status: Clean
In-Reply-To: <2l1k2ktmvp0ppum2ooegte9m2dlvlk1dhn@4ax.com>
Content-Language: en-US
X-Received-Bytes: 2369
Bytes: 2496

On 19/05/2025 2:12 am, legg wrote:
> On Sun, 18 May 2025 18:11:58 +1000, Bill Sloman <bill.sloman@ieee.org>
> wrote:
> 
>> I'm looking at a problem where somebody wants to step down a 1kV low
>> current source to 3.3V.
>>
>> The Baxandall class-D oscillator could do it, but it needs a pair 1.7kV
>> MOSFETs for the job. The Infineon SiC IMH170R450M1 would do it - though
>> it's a much higher current part (10A) than the job needs (about 1mA).
>>
>> I've dived into the Infineon rabbit-hole which promises LTSpice models,
>> but wasn't able to find one.
>>
>> Does anybody know of a similar - ideally cheaper and smaller - part for
>> which there is an LTSpice model?
> 
> 1kv, sitting there all alone and bashfull. Not a common occurEnce.
> Is this the only power source in the vicinity? Tell us more.

It's not my project. I just got asked about what a Baxandall 
down-converter for a 1kV 1mA source would look like.

Because it's not my project I'm not at liberty to talk about the power 
source. My first thought was an intensely radio-active source pushing 
out a lot of high energy beta rays (electrons) or alpha rays (helium 
nuclei), but it isn't.