Re: [Emc-users] Resolver to Quadrature Convertor

2010-06-18 Thread Andy Pugh
On 25 April 2010 18:28, RogerN re...@wildblue.net wrote: In your opinion, do you think the Arduino would work to use as an amplifier by using 1 resolver and adding 3 phases of PWM to drive 3 half H-Bridges? Yes. The answer is now a definite yes. In fact since the question was asked about 2

Re: [Emc-users] Resolver to Quadrature Convertor

2010-04-26 Thread Andy Pugh
On 26 April 2010 00:58, RogerN re...@wildblue.net wrote: I see brushless servo amps on ebay for reasonable but I think most require hall signals. http://cgi.ebay.com/AMC-brushless-servo-amplifier-BE25A20E-/310165227459?cmd=ViewItempt=BI_Control_Systems_PLCshash=item483749c7c3 I could put the

Re: [Emc-users] Resolver to Quadrature Convertor

2010-04-26 Thread RogerN
- Original Message - From: Andy Pugh a...@andypugh.fsnet.co.uk To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Sent: Monday, April 26, 2010 3:56 AM Subject: Re: [Emc-users] Resolver to Quadrature Convertor On 26 April 2010 00:58, RogerN re...@wildblue.net wrote

Re: [Emc-users] Resolver to Quadrature Convertor

2010-04-26 Thread Andy Pugh
On 26 April 2010 00:58, RogerN re...@wildblue.net wrote: I see brushless servo amps on ebay for reasonable but I think most require hall signals. I have put my Hall-sensor emulation code on the Wiki (as a link on the same page). It is happily running my servo upstairs at this moment. There is

Re: [Emc-users] Resolver to Quadrature Convertor

2010-04-25 Thread Dave
On 4/25/2010 9:57 AM, Andy Pugh wrote: Firstly let me make it clear that functional, competent, accurate and reliable Resolver to Quadrature convertors are available from Pico Systems and Mesa Electronics: http://pico-systems.com/resolver.html (I can only find a mention of the Mesa 7i49 on

Re: [Emc-users] Resolver to Quadrature Convertor

2010-04-25 Thread RogerN
- Original Message - From: Andy Pugh a...@andypugh.fsnet.co.uk To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Sent: Sunday, April 25, 2010 8:57 AM Subject: [Emc-users] Resolver to Quadrature Convertor Firstly let me make it clear that functional, competent,

Re: [Emc-users] Resolver to Quadrature Convertor

2010-04-25 Thread Andy Pugh
On 25 April 2010 18:28, RogerN re...@wildblue.net wrote: In your opinion, do you think the Arduino would work to use as an amplifier by using 1 resolver and adding 3 phases of PWM to drive 3 half H-Bridges? Possibly, and it is something I have been thinking of looking in to. I am not sure if

Re: [Emc-users] Resolver to Quadrature Convertor

2010-04-25 Thread Andy Pugh
On 25 April 2010 19:50, Andy Pugh a...@andypugh.fsnet.co.uk wrote: I am thinking of buying one of these for further experimentation: http://uk.rs-online.com/web/search/searchBrowseAction.html?method=getProductR=6880732 Mainly as the package includes shoot-through protection Thinking some

Re: [Emc-users] Resolver to Quadrature Convertor

2010-04-25 Thread RogerN
- Original Message - From: Andy Pugh a...@andypugh.fsnet.co.uk To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Sent: Sunday, April 25, 2010 1:50 PM Subject: Re: [Emc-users] Resolver to Quadrature Convertor On 25 April 2010 18:28, RogerN re...@wildblue.net wrote