... but the URL you have requested was not found. To find what your are looking for please browse or search the ACM Digital Library. We apologize for this inconvenience. Please contact us with any questions or concerns regarding this matter: Power Electronics Designs using DSP or microcontrolleres or analog controll To power EL, an AC source is required. It is not possible to light up EL with DC such as batteries or a wall-wart adapter! The output of the inverter must be a sine-wave with no DC component. It is not unusual to have an inverter run from batteries, such as this 'pocket' AA driver. The inverting circuitry is inside the box part to the left. This pocket inverter can drive approximately 1 to 15 feet (0.3-5 meter) of 'classic' EL wire such as LyTec. Since we are using higher-brightness EL wire in the shop, it can only drive half as much, 1 to 7.5 feet (0.3 to 2.5 meter). We found that 2 meters gives a nice bright glow at good voltage and frequency.

At 3 meters, its not as bright, it appears about the same as 'classic' EL. Each meter of high brightness EL draws about 10-15mA at the high voltage, which means about 1.5 Watt/meter (at 100VAC). 2 AA batteries can provide 9 Watts, so you can drive 1 meter for about 6 hours or 2 meters for 3 hours. This is only approximate, as the voltage changes with the length. The best way to know how long the wire will last is to test it with batteries and time how long it takes to dim! All EL drivers run at 'audible' frequencies which means that you can hear a squeaking noise emanating from the driver case. This is totally normal, but a little annoying. You can reduce the squeaking by opening up the driver case and padding it with foam tape. You can also try wrapping it in bubble-wrap or foam sheet to reduce the noise. We've usually found people wearing EL wire at parties where it's quite loud already. EL wire is not a resistive light (like an incandescent bulb) and it is not a diode light (like an LED), it acts more like a capacitor!

The stiff inner wire is one 'plate' of the capacitor, the corona wire is the other 'plate' and the phosphor coating being the insulator/dielectric (for more details on capacitors, see Wikipedia). This means you cannot use dimming methods such as triac/chopping for resistive incandescents or PWM for LEDs. In terms of thinking of how EL wire 'acts' you should model it as a capacitor that increases with the length of the wire. It is not a perfect capacitor, there is also some leakage which we will model as a resistor. The capacitance and resistance per meter depends on the 'thickness' of the EL wire, the brand and make, the voltage and frequency applied For ELAM Lytec 2.3mm EL wire (which is the most common EL wire) the parallel resistance per meter is: And the ELAM Lytec 2.3mm EL wire capacitance per meter is: The 'high brightness, long life' EL wire we carry is about twice as bright and has about twice the capacitance. We can use this information to determine the power draw.

Assuming you have LyTec EL wire, 2.3mm diameter 'standard'…if have one meter, that is 6nF and 100KΩ in parallel. polar wind air conditioning unitThe capacitance has an impedance of 1/(2πfC) so at 2000 Hz, the impedence per meter is 12 KΩ, in parallel with 100 KΩ it is 11 KΩ total. nissan xterra ac control unitFor a 100V AC power source, the current draw is 100V/11KΩ = 9mA per meter. 2002 honda civic air conditioner recharge100V * 9mA/meter = 0.9 Watts/meter! If you are using our 'high brightness, long life' stuff, its about 1.5 Watts per meter. Thus an inverter with a 100mA output capability can drive 10 meters or so of LyTec and 5 meter of 'high brightness' EL. The transformer and transistors used in an inverter are a big part of how much current an inverter can provide!

Inverter / Driver DetailsIt is not possible to light up EL with DC such as batteries or a wall adapter! The voltage should be between 50-120V AC RMS (150V-360V peak-to-peak). Higher voltages result in a brighter display (but lower overall wire-life). The AC frequency can run from 60Hz to 2000Hz, higher frequency results in a brighter display (but lower overall wire-life). Most inverters run at around 100VAC and 2KHz. This will vary a little bit with how much wire is attached, as longer pieces will 'load' the output. For example, this is the output of our pocket inverter with no loading. It is about 7KHz and 120V, the frequency is a bit high because the output is expecting a capacitive load that is not there. (Don't do this yourself, it can damage the inverter!) If you are comfortable using tools want to optimize your driver and wire, you can do so by 'modeling' your EL wire with a capacitor and resistor and plugging that in, then measuring the frequency across the RC with a multimeter or scope, just watch out you don't zap yourself!

The most important thing to note is that without a load capacitance/resistance, the voltage output can peak very high, up to 400Vpp! This will damage the pass transistors and for this reason you should never run an EL inverter without EL wire attached Another thing is that the more EL you add, the dimmer it will get as the voltage sags.The page you are looking for might have been removed, had its name changed or is temporarily unavailable. Make sure that the Web site address displayed in the address bar of your browser is spelled and formatted correctly Use our search engine to find the information you are looking for If you reached this place by clicking a link, contact the web site administrator to alert them that the link is not working properly Click the back button to try another link Do you still have problems with our website? Our Support Center will be happy to assist you: You could also try the link to our homepage: Available in high power packages, the BTA/BTB40-41 series is suitable for general purpose AC switching.

The BTA series provides an insulated tab (rated at 2500 V rms). Low thermal resistance with clip bonding Packages are RoHS (2002/95/EC) compliant BTA series UL1557 certified (File ref: 81734) 40 A standard TRIACs AC switch triggering with 3.3 V power supply How to select the Triac, ACS, or ACST that fits your application Is a positive power supply mandatory for my application, or could a negative output work also? Parameter list for SCRs, TRIACs, AC switches, and DIACS Thyristors and TRIACs: holding current - an important parameter Packing information for IPAD™, protection, rectifiers, thyristors and AC Switches HW Model & CAD Libraries Standard and Snubberless™ Triacs PSpice model (.lib) and symbols (.olb) Thyristors, Triacs, AC switches and A.S.D™ selection guide Triggering gate current max (mA) (I, II, III) Triggering gate current max (mA) (I, II, III, IV) Repetitive peak off-state voltage (V) (max)