|
|
To: High Voltage record Subject: Re: Switch-mode provide for bug zapper (fwd) You need the factors for the steel you intend to use. Differing kinds have totally different losses. You get hold of this from the mfgr. Digi-Key has some inexpensive IR type emitters & detectors. Have the fly crawl a distance, like 4-6 inches contained in the tube, after which, he triggers the IR beam which controls the zapper. A small single ended NST works nice for this utility. The present will burn them right up. The fly hits the IR beam at the 1/2 mid-method point which energizes a small grid in every path. The midpoint has a bit 2 inches long with no grid. They become trapped and cannot exit either path without getting zapped. You may additionally use a 600 Ohm to 10K audio xmfr. They make good HV sparks working 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 while interval. 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 ability part. You set sugar crystals in the tube and at the end of the tube use a small glass take a look at tube so you possibly can see your accumulated flies to adjust the time durations. The flies will accumulate and then attempt to exit the charged grid section. The one we now have makes use of a standard laminated iron, 50Hz transformer. I'd like, so I'm taking a look at making a switchmode version. 2) Ditto for sizing the elements for the snubber. HV rectification and that I'd need a string of high-velocity diodes.
Look at my web page - ZapZone Defender |
|
发表于