To: High Voltage record Subject: Re: Switch-mode supply for Zap Zone Defender bug zapper (fwd) You want the components for the steel you intend to use. Differing types have different losses. You obtain this from the mfgr. Digi-Key has some inexpensive IR kind 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 great for this application. The present 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 path. The midpoint has a section 2 inches lengthy with no grid. They turn out to be trapped and can't exit both direction without getting zapped. You could additionally use a 600 Ohm to 10K audio xmfr. They make good HV sparks working in a pulsed mode. If the time duration is short, like 1-2 sec, they may 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 is controlled by a 555 IC chip --- a small relay controls the ability section. You put sugar crystals in the tube and at the tip of the tube use a small glass test tube so you may see your accumulated flies to regulate the time durations. The flies will accumulate after which 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 components for the snubber. HV rectification and that I'd want a string of excessive-pace diodes.
Dynatrap makes insect traps that work on the same principle as others. They attract 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 gentle. The primary distinction is that they don’t use propane to create carbon dioxide (CO2). Instead, they use a particular process. More on that beneath. Since they don’t use propane, that means no need to buy and change cylinders, and better of all, no upkeep issues with clogged lines or failure of the propane to mild-points that hassle many other traps. You continue to need to plug them in, so you’ll want an out of doors outlet and an extension cord if you want grasp the trap greater than 7-10 ft from the outlet. The DT2000XL mannequin is more expensive than the DT1000 model, but it’s bigger, with a stronger fan and shiny gentle, and can appeal to bugs from farther away, with protection up to an acre for the DT2000XL and a half-acre for Zap Zone Defender Testimonial the DT1000, Zap Zone Defender Testimonial in keeping with the manufacturer.
If you’ve undoubtedly decided not to buy a propane mosquito trap, that is the following neatest thing. I’ll record the pros and cons of the two models collectively, because they’re comparable. Its initial cost is cheaper than propane traps. It doesn’t require the trouble and Zap Zone Defender Testimonial expense of replacing propane tanks. It catches other bugs in addition to mosquitoes, although that’s not at all times good if they’re beneficial ones. You should use it indoors or outdoors. The only sound is the quiet humming of the fan and there’s no odor. It’s secure for pets, youngsters and the environment, because it uses no insecticides. The large one: it doesn’t necessarily kill mosquitoes particularly, so chances are you'll get extra moths or other things as a substitute. You’ll need to mount it about 5 to 6 feet off the bottom. One model, the DT1200, comes with its own hanger, but otherwise, it wants a tree branch, publish, wall, indoor-outdoor zapper fence, etc. to hold or sit on.
If you use it outdoors, it may have some rain shelter to prevent water from getting into the amassing space. It needs an outlet 7-10 toes away or Zap Zone Defender Testimonial an extension cord. It’s tricky to empty without letting some bugs escape. The declare that it emits an efficient quantity of CO2 has been questioned. Like all traps, it wants positioned in a good location, shady and sheltered, where mosquitoes can discover it, however not the place you’ll be bothered by them. The lights in the highest of the entice emit warmth and Zap Zone Defender Testimonial ultraviolet rays, Zap Zone Defender Testimonial which appeal to mosquitoes in addition to other insects, particularly moths at night. 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 flee and die within a day. Unfortunately, Zap Zone Defender Testimonial gentle and warmth are simply two of the issues that entice mosquitoes, since what they’re mainly on the lookout for Zap Zone Defender System are individuals to chew.
Carbon dioxide is what they actually seek, since we and different animals emit it when we exhale. Mosquitoes know that in the event that they follow that vapor path, there will probably be a tasty animal on the other end, able to be bitten. To produce carbon dioxide, Zap Zone Defender the Dynatrap uses a broad sort of funnel above the fan, coated with titanium dioxide (TiO2). The manufacturer claims that when the ultraviolet light 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 different 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 floor would want coated with a source of carbon, like dust or useless bugs, in order for the method to make carbon dioxide. See the evaluation here (scroll right down to Dr. Marsteller’s comment).