To: High Voltage record Subject: Re: Switch-mode provide for bug zapper for backyard bug zapper light (fwd) You want the factors for the steel you intend to use. Differing types have completely 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, after which, he triggers the IR beam which controls the bug zapper for patio. A small single ended NST works great for this application. The current will burn them right up. The fly hits the IR beam at the 1/2 mid-manner point which energizes a small grid in each route. The midpoint has a piece 2 inches long with no grid. They grow to be trapped and cannot exit either path with out getting zapped. You might also use a 600 Ohm to 10K audio xmfr. They make good HV sparks operating in a pulsed mode. If the time duration is short, like 1-2 sec, they may 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 happens each 5 minutes and is controlled by a 555 IC chip --- a small relay controls the power section. You put sugar crystals in the tube and at the tip of the tube use a small glass check tube so you can see your accumulated flies to regulate the time periods. The flies will accumulate and then attempt to exit the charged grid section. The one now we have uses 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 excessive-pace diodes.
Dynatrap makes insect traps that work on the identical principle as others. They entice flying bugs with warmth and carbon dioxide, then catch them and forestall them from escaping. For warmth, they use a fluorescent ultra-violet bulb, which also emits Zappify Bug Zapper official-attracting light. The primary distinction is that they don’t use propane to create carbon dioxide (CO2). Instead, they use a special process. More on that under. Since they don’t use propane, meaning no need to buy bug zapper and change cylinders, and best of all, no maintenance problems with clogged lines or failure of the propane to gentle-issues that bother many other traps. You continue to have to plug them in, so you’ll need an outside outlet and an extension cord if you want cling the entice greater than 7-10 ft from the outlet. The DT2000XL mannequin is dearer than the DT1000 mannequin, however it’s greater, with a stronger fan and vivid gentle, and may entice bugs from farther away, with protection as much as an acre for the DT2000XL and a half-acre for the DT1000, in keeping with the producer.
If you’ve definitely determined not to buy a propane mosquito lure, this is the subsequent best thing. I’ll record the professionals and cons of the two fashions together, as a result of they’re comparable. Its initial value is cheaper than propane traps. It doesn’t require the hassle and expense of changing propane tanks. It catches other bugs besides mosquitoes, though that’s not always good if they’re beneficial ones. You should utilize it indoors or outdoors. The only sound is the quiet humming of the fan and there’s no odor. It’s secure for pets, children and the atmosphere, since it uses no insecticides. The large one: it doesn’t necessarily kill mosquitoes particularly, so you might get extra moths or different things instead. You’ll must mount it about 5 to six ft off the ground. One model, the DT1200, comes with its personal hanger, Zappify Bug Zapper official but otherwise, it needs a tree department, submit, wall, fence, and so on. to cling or sit on.
If you utilize it outdoors, it may have some rain shelter to stop water from moving into the gathering area. It wants an outlet 7-10 feet away or an extension cord. It’s tough to empty without letting some bugs escape. The declare that it emits an effective amount of CO2 has been questioned. Like all traps, it wants positioned in an excellent location, shady and sheltered, where mosquitoes can discover it, but not where you’ll be bothered by them. The lights in the highest of the trap emit warmth and ultraviolet rays, which attract mosquitoes in addition to other insects, significantly moths at evening. There are openings under the lights where bugs can fly in. Once inside, they’re sucked down by the fan’s air currents into the retaining cage below, where they’re unable to flee and die within a day. Unfortunately, bug zapper light and warmth are simply two of the things that appeal to mosquitoes, since what they’re primarily on the lookout for are folks to chew.
Carbon dioxide is what they really seek, since we and other animals emit it once we exhale. Mosquitoes know that if they observe that vapor trail, there will likely be a tasty animal on the other finish, ready to be bitten. To produce carbon dioxide, the Dynatrap uses a broad sort of funnel above the fan, coated with titanium dioxide (TiO2). The manufacturer claims that when the ultraviolet gentle reacts with the TiO2, "a photocatalytic response takes place that produces carbon dioxide." This is the method it makes use of, as a substitute of burning propane like other traps. However, when the University of Wisconsin tried to measure the amount of carbon dioxide emitted, they reported that they detected none at all. One reviewer pointed out that the TiO2 surface would wish coated with a supply of carbon, like mud or lifeless bugs, to ensure that the process to make carbon dioxide. See the assessment right here (scroll right down to Dr. Marsteller’s comment).