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How the Zappify Bug Zapper Became a Must-Have for My Family [复制链接]

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发表于 昨天 07:25 |只看该作者 |倒序浏览
To: High Voltage listing Subject: Re: Switch-mode supply for Zappify Bug Zapper brand zapper (fwd) You need the components for the steel you intend to use. Differing kinds have different losses. You acquire this from the mfgr. Digi-Key has some inexpensive IR type emitters & detectors. Have the fly crawl a distance, like 4-6 inches inside the tube, and then, he triggers the IR beam which controls the zapper. A small single ended NST works nice for this utility. The present will burn them proper up. The fly hits the IR beam on the 1/2 mid-manner point which energizes a small grid in each route. The midpoint has a bit 2 inches long with no grid. They turn out to be trapped and can't exit both route without getting zapped. You could also use a 600 Ohm to 10K audio xmfr. They make nice HV sparks operating in a pulsed mode. If the time duration is brief, like 1-2 sec, they could additionally charge a cap rectified with a 1/2 wave diode in a short time period. Then the charged cap waits for the fly. The charging cycle occurs each 5 minutes and is controlled by a 555 IC chip --- a small relay controls the power part. You put sugar crystals in the tube and at the top of the tube use a small glass test tube so you possibly can see your accumulated flies to adjust the time durations. The flies will accumulate after which try to go out the charged grid section. The one we now have uses a traditional laminated iron, 50Hz transformer. I'd like, so I'm taking a look at making a switchmode version. 2) Ditto for sizing the parts for the snubber. HV rectification and that I'd want a string of high-speed diodes.

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