http://tech.groups.yahoo.com/group/randrdesulfatorforum/ Rick & Richard's Desulfator Forum Sun, 22 Nov 2009 10:17:12 GMT William Roth http://tech.groups.yahoo.com/group/randrdesulfatorforum/message/1151 http://tech.groups.yahoo.com/group/randrdesulfatorforum/message/1151 One might consider actually trying the circuit without the cap and inductor before insisting upon their necessity based upon "standard engineering practice". Sun, 22 Nov 2009 03:52:05 GMT Anwar Shiekh http://tech.groups.yahoo.com/group/randrdesulfatorforum/message/1150 http://tech.groups.yahoo.com/group/randrdesulfatorforum/message/1150 Thanks for the clarification ... A. Shiekh, Ph.D., ARCS, ACGI Physics, Engineering and Maths Instructor Dine College Tsaile, AZ 86556 Sun, 22 Nov 2009 02:34:59 GMT scriabini http://tech.groups.yahoo.com/group/randrdesulfatorforum/message/1149 http://tech.groups.yahoo.com/group/randrdesulfatorforum/message/1149 The 'bypass capacitors' located at the power connections to chips are needed to accommodate power 'surge' demands of the chips and to prevent the generation of Fri, 20 Nov 2009 19:34:50 GMT Bill http://tech.groups.yahoo.com/group/randrdesulfatorforum/message/1148 http://tech.groups.yahoo.com/group/randrdesulfatorforum/message/1148 Inductor 2 and Bulk Cap Upon power up current flows through the 1000uh inductor and begins charging up the bulk capacitor. At the same time the capacitor on Fri, 20 Nov 2009 01:28:12 GMT Anwar Shiekh http://tech.groups.yahoo.com/group/randrdesulfatorforum/message/1147 http://tech.groups.yahoo.com/group/randrdesulfatorforum/message/1147 ... Buffer capacitors (like on RAM cards)? These are there is suppress transients, while here transients are desirable. Maybe (probably) I have misunderstood. Fri, 20 Nov 2009 01:08:11 GMT scriabini http://tech.groups.yahoo.com/group/randrdesulfatorforum/message/1146 http://tech.groups.yahoo.com/group/randrdesulfatorforum/message/1146 Any "circuit" which contains the necessary "components" will "resonate" when "stimulated" by a sharp pulse. In most cases, this "damped oscillation" is Fri, 20 Nov 2009 00:41:12 GMT ehsjr http://tech.groups.yahoo.com/group/randrdesulfatorforum/message/1145 http://tech.groups.yahoo.com/group/randrdesulfatorforum/message/1145 ... Yes, it's the V produced by the inductor, minus any circuit losses. Investigating the discrepancy between the observations and V=L*di/dt would determine Thu, 19 Nov 2009 22:01:57 GMT Bill http://tech.groups.yahoo.com/group/randrdesulfatorforum/message/1144 http://tech.groups.yahoo.com/group/randrdesulfatorforum/message/1144 Ed, ... Unless I have misunderstood, you are claiming that the voltage "spike" seen across the battery is the V in V= L* di/dt. And where L is the inductor Thu, 19 Nov 2009 17:00:58 GMT Anwar Shiekh http://tech.groups.yahoo.com/group/randrdesulfatorforum/message/1143 http://tech.groups.yahoo.com/group/randrdesulfatorforum/message/1143 Or put another way; if you have discovered a violation of the laws of Electrodynamics, this would be a breakthrough in Physics, and so rather unlikely. Thu, 19 Nov 2009 16:44:50 GMT ehsjr http://tech.groups.yahoo.com/group/randrdesulfatorforum/message/1142 http://tech.groups.yahoo.com/group/randrdesulfatorforum/message/1142 ... Bill, I have asked what accounts for the discrepancy between the formula and the observations. I pointed out a number of different possibilities. How can Thu, 19 Nov 2009 15:54:55 GMT Anwar Shiekh http://tech.groups.yahoo.com/group/randrdesulfatorforum/message/1141 http://tech.groups.yahoo.com/group/randrdesulfatorforum/message/1141 ... I also see around 6MHz, and yes, it could be enhanced. A phased locked loop sound good. But who has the time? Thu, 19 Nov 2009 15:52:10 GMT Bill http://tech.groups.yahoo.com/group/randrdesulfatorforum/message/1140 http://tech.groups.yahoo.com/group/randrdesulfatorforum/message/1140 ... currents. ... When I have some additional time I want to explore this resonance thing. The battery resonance (per Couper) is in the 2-6 mhz range. I am Thu, 19 Nov 2009 14:02:22 GMT Anwar Shiekh http://tech.groups.yahoo.com/group/randrdesulfatorforum/message/1139 http://tech.groups.yahoo.com/group/randrdesulfatorforum/message/1139 ... Yes, this part suggests the battery may play a dominant role. ... The battery resonating makes sense, but how this 'breaks up' the crystals is unclear to Thu, 19 Nov 2009 10:49:43 GMT Bill http://tech.groups.yahoo.com/group/randrdesulfatorforum/message/1138 http://tech.groups.yahoo.com/group/randrdesulfatorforum/message/1138 Andy, So far my testing of 4 different circuits types suggests that the HV pulse seen across the battery is not solely related to an inductor used in the Thu, 19 Nov 2009 10:22:39 GMT Bill http://tech.groups.yahoo.com/group/randrdesulfatorforum/message/1137 http://tech.groups.yahoo.com/group/randrdesulfatorforum/message/1137 Ed, you are going strictly by Faraday's law that works on paper on an ideal model. If you have ever done any real design work on this kind of stuff then you