In the schematic it looks like the bridge diodes are
connected backwards. The DC terminals go to the coil and the
AC terminals are labeled for DC. If things are working at
all, I presume this is just a misdrawn component.

Allen

> -----Original Message-----
> From: piclist-bounces@mit.edu [mailto:piclist-
> bounces@mit.edu] On Behalf Of IVP
> Sent: Monday, January 30, 2017 8:40 PM
> To: Microcontroller discussion list - Public.
> Subject: Re: [EE] 5V step-down no workee
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> I've added 6 more photos
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> https://www.flickr.com/photos/97814409@N04/sets/72157
> 675978832174
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> Camera *is* focussed
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> Vin =3D 8.89
> Vout =3D 2.29
> Iin =3D 121mA
> Iout =3D 302mA
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> Load is nominal 6R8, + wiring =3D > 7 ohms
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> No noticeable 50Hz ripple on Vin or Vout, a little HF
noise
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>=20
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> -----
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> Date: 01/30/17
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