Re: Switch-mode Supply For Bug Zapper Fwd

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To: High Voltage list Subject: Re: Switch-mode supply for bug zapper (fwd) You want the factors for the steel you intend to make use of. Different types have completely different losses. You receive 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, and then, he triggers the IR beam which controls the zapper. A small single ended NST works nice for this utility. The current will burn them right up. The fly hits the IR beam on the 1/2 mid-manner point which energizes a small grid in each course. The midpoint has a bit 2 inches lengthy with no grid. They become trapped and can't exit either path without getting zapped. You would also use a 600 Ohm to 10K audio xmfr. They make nice HV sparks working in a pulsed mode. If the time duration is brief, like 1-2 sec, they might also charge a cap rectified with a 1/2 wave diode in a short while period. Then the charged cap waits for the fly. The charging cycle occurs each 5 minutes and outdoor bug zapper for camping zapper is controlled by a 555 IC chip --- a small relay controls the power section. You put sugar crystals within the tube and at the top of the tube use a small glass check tube so you may see your accumulated flies to adjust the time intervals. The flies will accumulate and then try to exit the charged grid section. The one we've uses a traditional laminated iron, 50Hz transformer. I'd like, so I'm taking a look at making a switchmode model. 2) Ditto for sizing the elements for the snubber. HV rectification and that I'd want a string of high-speed diodes.



Dynatrap makes insect traps that work on the same principle as others. They entice flying bugs with warmth and carbon dioxide, then catch them and prevent them from escaping. For warmth, they use a fluorescent extremely-violet bulb, which also emits bug-attracting light. The principle difference is that they don’t use propane to create carbon dioxide (CO2). Instead, they use a particular course of. More on that under. Since they don’t use propane, meaning no want to buy Zappify Bug Zapper and alter cylinders, and better of all, no maintenance problems with clogged strains or failure of the propane to mild-points that bother many different traps. You still need to plug them in, so you’ll need an outside outlet and an extension cord if you want hold the trap more than 7-10 toes from the outlet. The DT2000XL model is costlier than the DT1000 mannequin, however it’s larger, with a stronger fan and brilliant mild, and may attract bugs from farther away, with coverage as much as an acre for the DT2000XL and a half-acre for the DT1000, according to the producer.



If you’ve definitely decided not to buy a propane mosquito lure, that is the next smartest thing. I’ll record the pros and cons of the two fashions together, because they’re related. Its preliminary price is cheaper than propane traps. It doesn’t require the problem and expense of changing propane tanks. It catches other bugs in addition to mosquitoes, although that’s not all the time good if they’re helpful ones. You should use it indoors or outdoors. The one sound is the quiet humming of the fan and there’s no odor. It’s safe for pets, children and the surroundings, since it uses no insecticides. The big one: buy Zappify Bug Zapper it doesn’t necessarily kill mosquitoes specifically, so chances are you'll get extra moths or other issues as a substitute. You’ll have to mount it about 5 to six ft off the bottom. One model, the DT1200, comes with its own hanger, however in any other case, it wants a tree branch, publish, wall, fence, and many others. to grasp or sit on.



If you use it outdoors, it might have some rain shelter to forestall water from entering into the gathering area. It wants an outlet 7-10 feet away or an extension cord. It’s tricky to empty without letting some bugs escape. The claim that it emits an efficient amount of CO2 has been questioned. Like all traps, it needs positioned in a great location, shady and sheltered, where mosquitoes can find it, however not the place you’ll be bothered by them. The lights in the highest of the lure emit warmth and ultraviolet rays, which attract mosquitoes in addition to different 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 under, the place they’re unable to escape and die within a day. Unfortunately, gentle and warmth are simply two of the issues that entice mosquitoes, since what they’re primarily looking for are folks to chew.



Carbon dioxide is what they really seek, since we and different animals emit it once we exhale. Mosquitoes know that in the event that they follow that vapor trail, there can be a tasty animal on the opposite finish, able 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." That is the process it uses, instead of burning propane like different traps. However, when the University of Wisconsin tried to measure the quantity of carbon dioxide emitted, they reported that they detected none in any respect. One reviewer pointed out that the TiO2 surface would wish coated with a source of carbon, like mud or dead bugs, to ensure that the process to make carbon dioxide. See the evaluate here (scroll down to Dr. Marsteller’s comment).