Re: Switch-mode Supply For Bug Zapper Fwd

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To: High Voltage listing Subject: Re: Switch-mode provide for bug zapper (fwd) You want the components for the steel you intend to use. Differing kinds have 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 proper up. The fly hits the IR beam at the 1/2 mid-approach point which energizes a small grid in every direction. The midpoint has a piece 2 inches lengthy with no grid. They turn out to be trapped and can't exit either path without getting zapped. You may also use a 600 Ohm to 10K audio xmfr. They make nice HV sparks operating in a pulsed mode. If the time duration is short, like 1-2 sec, they could additionally charge a cap rectified with a 1/2 wave diode in a short time interval. Then the charged cap waits for the fly. The charging cycle happens each 5 minutes and is managed by a 555 IC chip --- a small relay controls the ability section. You place sugar crystals within the tube and at the top of the tube use a small glass take a look at tube so you may see your accumulated flies to regulate the time intervals. The flies will accumulate and then attempt to go out the charged grid section. The one we now have uses a standard laminated iron, 50Hz transformer. I'd like, so I'm looking at making a switchmode version. 2) Ditto for sizing the components for the snubber. HV rectification and that I'd want a string of excessive-speed diodes.



Dynatrap makes insect traps that work on the identical principle as others. They appeal to flying bugs with warmth and carbon dioxide, then catch them and stop them from escaping. For warmth, they use a fluorescent ultra-violet bulb, which additionally emits bug-attracting gentle. The principle distinction 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, which means no want to buy and change cylinders, and best of all, no upkeep issues with clogged lines or failure of the propane to light-points that bother many other traps. You still have to plug them in, so you’ll want an outside outlet and an extension cord if you'd like dangle the entice more than 7-10 feet from the outlet. The DT2000XL mannequin is costlier than the DT1000 model, however it’s greater, with a stronger fan and Zap Zone Defender Testimonial brilliant mild, and can appeal to bugs from farther away, with coverage as much as an acre for the DT2000XL and a half-acre for the DT1000, based on the producer.



If you’ve undoubtedly decided not to buy a propane mosquito lure, that is the next best thing. I’ll record the professionals and cons of the 2 fashions together, as a result of they’re similar. Its preliminary cost is cheaper than propane traps. It doesn’t require the trouble and expense of replacing propane tanks. It catches other bugs moreover mosquitoes, although that’s not all the time good if they’re helpful ones. You need to use it indoors or outdoors. The one sound is the quiet humming of the fan and there’s no odor. It’s secure for pets, children and the environment, Zap Zone Defender Testimonial since it makes use of no insecticides. The large one: it doesn’t necessarily kill mosquitoes specifically, so you may get more moths or different issues as an alternative. You’ll have to mount it about 5 to 6 ft off the ground. One mannequin, the DT1200, comes with its personal hanger, however in any other case, it wants a tree department, post, wall, fence, and so on. to dangle or sit on.



If you use it outdoors, it may have some rain shelter to stop water from entering into the accumulating space. It wants an outlet 7-10 toes away or an extension cord. It’s tricky to empty with out letting some bugs escape. The declare that it emits an efficient amount of CO2 has been questioned. Like all traps, it wants positioned in a superb location, shady and sheltered, the place mosquitoes can find it, but not where you’ll be bothered by them. The lights in the top of the entice emit warmth and ultraviolet rays, which entice mosquitoes as well as other insects, particularly moths at night. There are openings under the lights the place bugs can fly in. Once inside, they’re sucked down by the fan’s air currents into the retaining cage under, where they’re unable to escape and die within a day. Unfortunately, light and warmth are just two of the things that appeal to mosquitoes, since what they’re primarily searching for are people to chew.



Carbon dioxide is what they actually seek, since we and different animals emit it when we exhale. Mosquitoes know that if they follow that vapor path, there might be a tasty animal on the other end, ready to be bitten. To provide carbon dioxide, the Dynatrap makes use of a broad type of funnel above the fan, coated with titanium dioxide (TiO2). The producer claims that when the ultraviolet light reacts with the TiO2, "a photocatalytic reaction takes place that produces carbon dioxide." That is the method it makes use of, instead 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 in any respect. One reviewer pointed out that the TiO2 floor would want coated with a supply of carbon, like dust or useless bugs, to ensure that the method to make carbon dioxide. See the assessment right here (scroll right down to Dr. Marsteller’s comment).