X-Authentication-Warning: delorie.com: mail set sender to geda-user-bounces using -f X-Recipient: geda-user AT delorie DOT com Subject: Re: [geda-user] (Off-topic) Question wrt driving HV piezo transducer To: geda-user AT delorie DOT com References: <6221de93-bb98-d397-79b4-eecf3975c2e6 AT linetec DOT nl> <20180209161532 DOT 6AF57804CEFA AT turkos DOT aspodata DOT se> <20180209204934 DOT CAA35804CEFA AT turkos DOT aspodata DOT se> <1a5665d2-c032-29f3-6de3-d4e3cd52f42b AT linetec DOT nl> From: "John Griessen (john AT ecosensory DOT com) [via geda-user AT delorie DOT com]" Message-ID: Date: Fri, 16 Feb 2018 08:49:55 -0600 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.6.0 MIME-Version: 1.0 In-Reply-To: <1a5665d2-c032-29f3-6de3-d4e3cd52f42b@linetec.nl> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Reply-To: geda-user AT delorie DOT com Errors-To: nobody AT delorie DOT com X-Mailing-List: geda-user AT delorie DOT com X-Unsubscribes-To: listserv AT delorie DOT com Precedence: bulk On 02/16/2018 05:38 AM, Richard Rasker (rasker AT linetec DOT nl) [via geda-user AT delorie DOT com] wrote: > I'd better start calculating, building and measuring things now. That's how to do transformers. Iterate and test. Push pull avoids saturation, requires custom parts. If you want a flyback inductor system, you still have to keep outflow/inflow balanced or saturation. So simple single ended PWM doesn't work unless it is low duty cycle so the inflow is always a good bit less than the outflow. -- John Griessen -- building lab gear for biologists Ecosensory Austin TX blog.kitmatic.com