High Power Flyback Controller with Primary
... Open Frame SMPS for Industrial, Printer, White Goods, LCD Monitors Energy Efficient AC-DC Supplies for Nominal Power 10-W to 65-W, (with up to 200% transient peak power) ...
... Open Frame SMPS for Industrial, Printer, White Goods, LCD Monitors Energy Efficient AC-DC Supplies for Nominal Power 10-W to 65-W, (with up to 200% transient peak power) ...
Fluorescent Lamp Starters
... As the voltage pulse is dependent on the phase relation (energy stored in the choke) there is a chance that the lamps will not ignite despite good preheating of the lamp electrodes. In this case, the glow igniter ignites again and repeats the preheating process and the ignition attempt – and continu ...
... As the voltage pulse is dependent on the phase relation (energy stored in the choke) there is a chance that the lamps will not ignite despite good preheating of the lamp electrodes. In this case, the glow igniter ignites again and repeats the preheating process and the ignition attempt – and continu ...
product catalog - X-Rel
... with integrated driver designed for extreme reliability and high temperature applications such as DC/DC converters, motor control and power switching. XTR20410 parts can be used either as high-side (40V max), low-side, or low-side switch with negative offset (-30V max) on the output stage (SOURCE co ...
... with integrated driver designed for extreme reliability and high temperature applications such as DC/DC converters, motor control and power switching. XTR20410 parts can be used either as high-side (40V max), low-side, or low-side switch with negative offset (-30V max) on the output stage (SOURCE co ...
Fluorescent Lighting
... efficiently and arcs are struck more easily with less stress than those produced by 60 Hz. An electronic ballast usually contains an input surge protector, a filter to minimize electromagnetic interference, an ac to dc converter, and an inverter to provide the high frequency ac output. Product claim ...
... efficiently and arcs are struck more easily with less stress than those produced by 60 Hz. An electronic ballast usually contains an input surge protector, a filter to minimize electromagnetic interference, an ac to dc converter, and an inverter to provide the high frequency ac output. Product claim ...
A Practical Guide to Free-Energy Devices
... spinning a plastic disc. In the prototype shown above, the disc is an old vinyl record which has had holes cut in it. Between the holes is an area which was covered with glue and then sprinkled with powdered neodymium magnet material. It takes very little power to spin the disc, but it acts in a way ...
... spinning a plastic disc. In the prototype shown above, the disc is an old vinyl record which has had holes cut in it. Between the holes is an area which was covered with glue and then sprinkled with powdered neodymium magnet material. It takes very little power to spin the disc, but it acts in a way ...
Audio Amplifiers
... Audiophile Quality Sound: 0.08% THD+N @ 5W 8Ω \ 0.08% THD+N @ 10W 4Ω. Sensitivity and gain adjustable. Over/under voltage turn off. Over current protection. Over temperature protection. ...
... Audiophile Quality Sound: 0.08% THD+N @ 5W 8Ω \ 0.08% THD+N @ 10W 4Ω. Sensitivity and gain adjustable. Over/under voltage turn off. Over current protection. Over temperature protection. ...
IMAGE INTENSIFIER APPLICATION NOTE
... Image Intensifiers are light amplifiers that can detect and image objects at extremely low light levels. The largest application for Image Intensifiers is in night-vision devices, used to “see” at night under moonlight or starlight conditions. However their use in many scientific and industrial appl ...
... Image Intensifiers are light amplifiers that can detect and image objects at extremely low light levels. The largest application for Image Intensifiers is in night-vision devices, used to “see” at night under moonlight or starlight conditions. However their use in many scientific and industrial appl ...
Report on Frequent Tripping of Pragati GT (FEB-2010)
... (DT) earth fault feature was enabled in the numerical distance protection relay at BTPS end on 220 KV BTPS-SV ckt. as, such, the fault got cleared from BTPS end after a time delay of around 1 sec. Due to loss of 160MW in island, the jerk was felt by GT # 1 of PPCL and came on Full speed due to No Lo ...
... (DT) earth fault feature was enabled in the numerical distance protection relay at BTPS end on 220 KV BTPS-SV ckt. as, such, the fault got cleared from BTPS end after a time delay of around 1 sec. Due to loss of 160MW in island, the jerk was felt by GT # 1 of PPCL and came on Full speed due to No Lo ...
Analysis of a floating vs. grounded output
... A difference in potential, whether it is a few millivolts between PC data communication lines or hundreds of volts in transmission distribution networks, means that current can flow between those two points. These variations in potential cause what are called “ground loops”throughout a system. As s ...
... A difference in potential, whether it is a few millivolts between PC data communication lines or hundreds of volts in transmission distribution networks, means that current can flow between those two points. These variations in potential cause what are called “ground loops”throughout a system. As s ...
STM32L1x temperature sensor example
... acquired by the STM32L1x ADC with a 3 V (± 10 mV) reference voltage. The factory calibration data are tested for validity when the example application is initialized. If data is present in the memory, it is used for temperature calculation. Otherwise, the user calibration data stored during user cal ...
... acquired by the STM32L1x ADC with a 3 V (± 10 mV) reference voltage. The factory calibration data are tested for validity when the example application is initialized. If data is present in the memory, it is used for temperature calculation. Otherwise, the user calibration data stored during user cal ...
AH5798 SINGLE PHASE HALL EFFECT LATCH SMART FAN MOTOR CONTROLLER
... * Reverse connection of power supply may damage the device. To prevent reverse power damage, a protection (reverse blocking) Diode D1 is needed between power supply and Vdd terminal. If a reverse power protection diode D1 is used, there is no current return path to power supply, so it is necessary t ...
... * Reverse connection of power supply may damage the device. To prevent reverse power damage, a protection (reverse blocking) Diode D1 is needed between power supply and Vdd terminal. If a reverse power protection diode D1 is used, there is no current return path to power supply, so it is necessary t ...
Surge Protection Done Right
... Zero Surge was asked to develop a supplement to their proven series-mode surge suppression technology that not only was very reliable, effective and safe but that would work over a voltage range of 85 to 265 volts rms with no performance degradation. Were we able to meet these requirements, it becam ...
... Zero Surge was asked to develop a supplement to their proven series-mode surge suppression technology that not only was very reliable, effective and safe but that would work over a voltage range of 85 to 265 volts rms with no performance degradation. Were we able to meet these requirements, it becam ...
Single-Time-Constant Circuits
... T(s)Vo(s)/ Vi(s) Example 1: Find the voltage transfer function T(s) Vo(s)/Vi(s) for the STC network shown in Figure 1? ...
... T(s)Vo(s)/ Vi(s) Example 1: Find the voltage transfer function T(s) Vo(s)/Vi(s) for the STC network shown in Figure 1? ...
Partial Shading Detection and Smooth Maximum Power Point
... and yields suitable results; but needs high sampling number. Reference [12] proposes two methods: the first approach samples the P-V curve and limits the search area based on short circuit current of the modules and the highest local power. As it is mentioned in [12], this method has high accuracy w ...
... and yields suitable results; but needs high sampling number. Reference [12] proposes two methods: the first approach samples the P-V curve and limits the search area based on short circuit current of the modules and the highest local power. As it is mentioned in [12], this method has high accuracy w ...
Amplifier Frequency Response
... In analyzing the frequency response of electronic circuits, it is occasionally necessary to reevaluate the models used for passive components. For example, a wirewound precision resistor also has significant inductance, which must be taken into account at higher frequencies. In fact, all passive com ...
... In analyzing the frequency response of electronic circuits, it is occasionally necessary to reevaluate the models used for passive components. For example, a wirewound precision resistor also has significant inductance, which must be taken into account at higher frequencies. In fact, all passive com ...
Resistive opto-isolator
Resistive opto-isolator (RO), also called photoresistive opto-isolator, vactrol (after a genericized trademark introduced by Vactec, Inc. in the 1960s), analog opto-isolator or lamp-coupled photocell, is an optoelectronic device consisting of a source and detector of light, which are optically coupled and electrically isolated from each other. The light source is usually a light-emitting diode (LED), a miniature incandescent lamp, or sometimes a neon lamp, whereas the detector is a semiconductor-based photoresistor made of cadmium selenide (CdSe) or cadmium sulfide (CdS). The source and detector are coupled through a transparent glue or through the air.Electrically, RO is a resistance controlled by the current flowing through the light source. In the dark state, the resistance typically exceeds a few MOhm; when illuminated, it decreases as the inverse of the light intensity. In contrast to the photodiode and phototransistor, the photoresistor can operate in both the AC and DC circuits and have a voltage of several hundred volts across it. The harmonic distortions of the output current by the RO are typically within 0.1% at voltages below 0.5 V.RO is the first and the slowest opto-isolator: its switching time exceeds 1 ms, and for the lamp-based models can reach hundreds of milliseconds. Parasitic capacitance limits the frequency range of the photoresistor by ultrasonic frequencies. Cadmium-based photoresistors exhibit a ""memory effect"": their resistance depends on the illumination history; it also drifts during the illumination and stabilizes within hours, or even weeks for high-sensitivity models. Heating induces irreversible degradation of ROs, whereas cooling to below −25 °C dramatically increases the response time. Therefore, ROs were mostly replaced in the 1970s by the faster and more stable photodiodes and photoresistors. ROs are still used in some sound equipment, guitar amplifiers and analog synthesizers owing to their good electrical isolation, low signal distortion and ease of circuit design.