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Steve - How many equal "steps" are necessary for the MSW inverter to be
a sufficiently close approximation to a "rotary" sine wave? |
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philkryder wrote:
Steve - How many equal "steps" are necessary for the MSW inverter to be a sufficiently close approximation to a "rotary" sine wave? That depends on what you are driving. A laser printer requires closer representation than a computer. The manufacturer of a particular load could tell you that information. The old test of whether something was sine or some version of square was a lamp dimmer. On a square wave unit the light goes full bright. We have a touch lamp that will not change state on MSW, but will on generator. -- Steve Spence Dir., Green Trust, http://www.green-trust.org Contributing Editor, http://www.off-grid.net http://www.rebelwolf.com/essn.html |
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"....We have a touch lamp that will not change
state on MSW, but will on generator" Do you know if these new smaller Inverter style generators are a close enough approximation for things like the laser printer? Just how good are the "sine" like waves on them? I thought someone was going to put a 'scope on one... |
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philkryder wrote:
"....We have a touch lamp that will not change state on MSW, but will on generator" Do you know if these new smaller Inverter style generators are a close enough approximation for things like the laser printer? Just how good are the "sine" like waves on them? I thought someone was going to put a 'scope on one... What are those Phil? NT |
#5
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philkryder wrote:
"....We have a touch lamp that will not change state on MSW, but will on generator" Do you know if these new smaller Inverter style generators are a close enough approximation for things like the laser printer? Just how good are the "sine" like waves on them? I thought someone was going to put a 'scope on one... I don't have one (inverter/generator) to test. If it's a SW then yes, it will work. The HONDA EM50is claims to be a sine wave unit. -- Steve Spence Dir., Green Trust, http://www.green-trust.org Contributing Editor, http://www.off-grid.net http://www.rebelwolf.com/essn.html |
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On Wed, 21 Dec 2005 14:06:05 -0500, Steve Spence wrote:
philkryder wrote: "....We have a touch lamp that will not change state on MSW, but will on generator" Do you know if these new smaller Inverter style generators are a close enough approximation for things like the laser printer? Just how good are the "sine" like waves on them? I thought someone was going to put a 'scope on one... I don't have one (inverter/generator) to test. If it's a SW then yes, it will work. The HONDA EM50is claims to be a sine wave unit. It seems pretty obvious that a mechanical generator should put out a relatively pure sine wave - it's just this big rotating magnetic field and a couple of coils, after all. :-) As a matter of fact, it's a little hard for me to visualize how someone would make anything _other than_ a plain vanilla sine wave using just a rotating magnet and a coil. Thanks! Rich |
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Rich Grise wrote:
On Wed, 21 Dec 2005 14:06:05 -0500, Steve Spence wrote: philkryder wrote: "....We have a touch lamp that will not change state on MSW, but will on generator" Do you know if these new smaller Inverter style generators are a close enough approximation for things like the laser printer? Just how good are the "sine" like waves on them? I thought someone was going to put a 'scope on one... I don't have one (inverter/generator) to test. If it's a SW then yes, it will work. The HONDA EM50is claims to be a sine wave unit. It seems pretty obvious that a mechanical generator should put out a relatively pure sine wave - it's just this big rotating magnetic field and a couple of coils, after all. :-) As a matter of fact, it's a little hard for me to visualize how someone would make anything _other than_ a plain vanilla sine wave using just a rotating magnet and a coil. Thanks! Rich Inverter units do not provide mechanically driven electrical output to the load, they run it through an inverter for frequency and voltage control. -- Steve Spence Dir., Green Trust, http://www.green-trust.org Contributing Editor, http://www.off-grid.net http://www.rebelwolf.com/essn.html |
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On Wed, 21 Dec 2005 23:16:55 GMT, Rich Grise
wrote: On Wed, 21 Dec 2005 14:06:05 -0500, Steve Spence wrote: philkryder wrote: "....We have a touch lamp that will not change state on MSW, but will on generator" Do you know if these new smaller Inverter style generators are a close enough approximation for things like the laser printer? Just how good are the "sine" like waves on them? I thought someone was going to put a 'scope on one... I don't have one (inverter/generator) to test. If it's a SW then yes, it will work. The HONDA EM50is claims to be a sine wave unit. It seems pretty obvious that a mechanical generator should put out a relatively pure sine wave - it's just this big rotating magnetic field and a couple of coils, after all. :-) As a matter of fact, it's a little hard for me to visualize how someone would make anything _other than_ a plain vanilla sine wave using just a rotating magnet and a coil. Purchase a cheap one. They must try. :-)) Roger Halstead (K8RI & ARRL life member) (N833R, S# CD-2 Worlds oldest Debonair) www.rogerhalstead.com Thanks! Rich |
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In article ,
Rich Grise wrote: will work. The HONDA EM50is claims to be a sine wave unit. It seems pretty obvious that a mechanical generator should put out a relatively pure sine wave - it's just this big rotating magnetic field and a couple of coils, after all. :-) As a matter of fact, it's a little hard for me to visualize how someone would make anything _other than_ a plain vanilla sine wave using just a rotating magnet and a coil. Thanks! Rich Except that if you actually had any understanding of the product you were expounding upon, you would know that the generator portion of this product, produces DC Current, that is then supplied to an internal inverter, which then converts the DC current into AC current. The only question being debated about the product is, if produces a true Sinewave output, or a modified Squarewave output, during the conversion process. Apparently you seem to lack visulization capabilities altogether..... Me |
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On 20 Dec 2005 22:50:51 -0800, "philkryder"
wrote: "....We have a touch lamp that will not change state on MSW, but will on generator" Do you know if these new smaller Inverter style generators are a close enough approximation for things like the laser printer? Just how good are the "sine" like waves on them? I thought someone was going to put a 'scope on one... The quality of the wave form is directly proportional to the money you put into it. I've used a small generator to power just about everything in here. I've since upped that to 9,500 watts continuous which seems to work well. It does tend to mess with the clocks if we're on generator power for more than a few hours. I've never had any problems with the computers of printers though. Roger Halstead (K8RI & ARRL life member) (N833R, S# CD-2 Worlds oldest Debonair) www.rogerhalstead.com |
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