From: hamilton on 30 Apr 2010 11:51 Is the OP still around ? I hope he now understands what he was asking for and will ask again for what he needs. hamilton
From: Brendan Gillatt on 30 Apr 2010 23:38 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 29/04/2010 22:14, Joerg wrote: > > Yes, you can possibly use ultrasonic transformers. Unfortunately they > have remained boutique parts, probably quite expensive. > I have haerd that two piezo-sounders sandwiched back-to-back with a mica or acetate (I forget which) sheet can transfer usable amounts of energy. - -- Brendan Gillatt | GPG Key: 0xBF6A0D94 brendan {a} brendangillatt (dot) co (dot) uk http://www.brendangillatt.co.uk -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.14 (MingW32) iEYEARECAAYFAkvboiUACgkQHEhZ5Ws5poEQPACgpOXT5CJS/sCV5V28IRhId1L4 5rIAoM0T8ZUHqE8r5wKS31AbPx4mQGxf =c3p3 -----END PGP SIGNATURE-----
From: Joerg on 1 May 2010 12:05 Brendan Gillatt wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > On 29/04/2010 22:14, Joerg wrote: >> Yes, you can possibly use ultrasonic transformers. Unfortunately they >> have remained boutique parts, probably quite expensive. >> > > I have haerd that two piezo-sounders sandwiched back-to-back with a mica > or acetate (I forget which) sheet can transfer usable amounts of energy. > Yeah, but then you are pretty darn close to a capacitor. Won't work with xx kilovolts between them :-) -- Regards, Joerg http://www.analogconsultants.com/ "gmail" domain blocked because of excessive spam. Use another domain or send PM.
From: JosephKK on 1 May 2010 22:21 On Fri, 30 Apr 2010 09:51:54 -0600, hamilton <hamilton(a)nothere.com> wrote: >Is the OP still around ? > >I hope he now understands what he was asking for >and will ask again for what he needs. > >hamilton If you had really followed the thread you could have found out that surface mount is also desirable. Thus no mega-isolation.
From: hamilton on 2 May 2010 01:00
On 5/1/2010 8:21 PM, JosephKK wrote: > On Fri, 30 Apr 2010 09:51:54 -0600, hamilton<hamilton(a)nothere.com> > wrote: > >> Is the OP still around ? >> >> I hope he now understands what he was asking for >> and will ask again for what he needs. >> >> hamilton > > If you had really followed the thread you could have found out that > surface mount is also desirable. Thus no mega-isolation. Hmmm, surface mount or not, opto isolated power in not realistic. I was wondering if the OP understands what he was asking, that there is no chance in hell that his request was feasible. But the OP is an gmail poster, which mean he does not understand what he was asking. hamilton |