Analysis and Design of a High Voltage Flyback
... Flyback converters have been widely used because of their relative simplicity and their excellent performance for multoutput applications. They can save cost and volume compared with the other converters, especially in low power applications. In a flyback converter, a transformer is adopted to achie ...
... Flyback converters have been widely used because of their relative simplicity and their excellent performance for multoutput applications. They can save cost and volume compared with the other converters, especially in low power applications. In a flyback converter, a transformer is adopted to achie ...
QPI-8 - Vicor
... common mode noise cancelation signal more effective at removing the common mode noise that would normally return to the shield/earth connection. It is important when laying out the QPI that the RY resistor connects to the QPI’s shield pin before making the connection to earth ground. Figure 4 – An u ...
... common mode noise cancelation signal more effective at removing the common mode noise that would normally return to the shield/earth connection. It is important when laying out the QPI that the RY resistor connects to the QPI’s shield pin before making the connection to earth ground. Figure 4 – An u ...
MAX16128/MAX16129 Load-Dump/Reverse-Voltage Protection Circuits General Description Features
... In the last case, cold-crank protection is enabled as long as VOUT is higher than 90% of VIN (with a 3% hysteresis) and VIN is higher than the undervoltage threshold. When the monitored input voltage falls below the falling coldcrank fault threshold (VIN < VCCK), the GATE is pulled down and FLAG is ...
... In the last case, cold-crank protection is enabled as long as VOUT is higher than 90% of VIN (with a 3% hysteresis) and VIN is higher than the undervoltage threshold. When the monitored input voltage falls below the falling coldcrank fault threshold (VIN < VCCK), the GATE is pulled down and FLAG is ...
TPS63000 数据资料 dataSheet 下载
... Li-Ion or Li-Polymer Battery, and discharge it down to 2.5V or lower. The buck-boost converter is based on a fixed frequency, pulse-width-modulation (PWM) controller using synchronous rectification to obtain maximum efficiency. At low load currents, the converter enters Power Save mode to maintain h ...
... Li-Ion or Li-Polymer Battery, and discharge it down to 2.5V or lower. The buck-boost converter is based on a fixed frequency, pulse-width-modulation (PWM) controller using synchronous rectification to obtain maximum efficiency. At low load currents, the converter enters Power Save mode to maintain h ...
Close Loop Solution for Electronic Ballast of Metal Halide Lamps
... frequency ballasts have been developed. However, the arc in the HID lamp tends to be unstable at specific frequency operation ranges. This phenomenon is called acoustic resonance. So MH lamps driven by high-frequency electronic ballast may suffer from problematic acoustic resonance that may lead to ...
... frequency ballasts have been developed. However, the arc in the HID lamp tends to be unstable at specific frequency operation ranges. This phenomenon is called acoustic resonance. So MH lamps driven by high-frequency electronic ballast may suffer from problematic acoustic resonance that may lead to ...
Dual Channel High-IP3 100MHz – 6GHz Active Mixer ADL5802 Preliminary Technical Data
... architecture which provides enhanced IP3 performance when subject to high input levels. A bias adjust feature allows the input linearity, SSB Noise Figure, and DC current to be optimized using a single control pin. The high input linearity allows the device to be used in demanding cellular applicati ...
... architecture which provides enhanced IP3 performance when subject to high input levels. A bias adjust feature allows the input linearity, SSB Noise Figure, and DC current to be optimized using a single control pin. The high input linearity allows the device to be used in demanding cellular applicati ...
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... The Transducer The function of the transducer is to convert a stimulus from one form of energy into another. These are some examples: ...
... The Transducer The function of the transducer is to convert a stimulus from one form of energy into another. These are some examples: ...
Sound Card Interfacing for RTTY, PSK31, and SSTV Who needs a
... The simplest and quickest computer to radio interface is to connect the Line Output from the Sound Card to the transceiver audio input with a 100:1 voltage divider to reduce the voltage output, and the Sound Card Line Input to the audio output of the radio. You can use the VOX to switch from Receive ...
... The simplest and quickest computer to radio interface is to connect the Line Output from the Sound Card to the transceiver audio input with a 100:1 voltage divider to reduce the voltage output, and the Sound Card Line Input to the audio output of the radio. You can use the VOX to switch from Receive ...
CoolRunner-II I/O Characteristics Summary
... support for a wide variety of I/O standards. An input buffer can be configured either as a simple single-ended buffer or as a comparator.1 Single-ended voltage inputs have the option of using 1. Voltage referenced logic inputs are only available on 128-macrocell and denser parts. © 2002 Xilinx, Inc. ...
... support for a wide variety of I/O standards. An input buffer can be configured either as a simple single-ended buffer or as a comparator.1 Single-ended voltage inputs have the option of using 1. Voltage referenced logic inputs are only available on 128-macrocell and denser parts. © 2002 Xilinx, Inc. ...
MAX16936 36V, 220kHz to 2.2MHz Step-Down Converter with 28µA Quiescent Current General Description
... designed to operate with an external Schottky diode for better efficiency. The low-side MOSFET enables fixed-frequency forced-PWM (FPWM) operation under light-load applications. The device operates with input voltages from 3.5V to 36V, while using only 28FA quiescent current at no load. The switchin ...
... designed to operate with an external Schottky diode for better efficiency. The low-side MOSFET enables fixed-frequency forced-PWM (FPWM) operation under light-load applications. The device operates with input voltages from 3.5V to 36V, while using only 28FA quiescent current at no load. The switchin ...
Signals - theParticle.com
... Figure 2 illustrates a Sin wave at 4Hz. Notice that the horizontal axis is time, and is expressed in seconds. You can count the number of times the wave cycles, and you’ll see that it’s 4, ie: 4Hz. Given the frequency, you can easily find the wave period. For example, if the wave cycles itself 4 tim ...
... Figure 2 illustrates a Sin wave at 4Hz. Notice that the horizontal axis is time, and is expressed in seconds. You can count the number of times the wave cycles, and you’ll see that it’s 4, ie: 4Hz. Given the frequency, you can easily find the wave period. For example, if the wave cycles itself 4 tim ...
MAX485 Low Power, Slew-Rate-Limited RS-485/RS
... The MAX485 is low-power transceivers for RS-485 and RS-422 communication. IC contains one driver and one receiver. The driver slew rates of the MAX485 is not limited, allowing them to transmit up to 2.5Mbps. These transceivers draw between 120µA and 500µA of supply current when unloaded or fully loa ...
... The MAX485 is low-power transceivers for RS-485 and RS-422 communication. IC contains one driver and one receiver. The driver slew rates of the MAX485 is not limited, allowing them to transmit up to 2.5Mbps. These transceivers draw between 120µA and 500µA of supply current when unloaded or fully loa ...
Core Balance Specify Document
... As can be seen from GOSS typical curve the resultant flux at very low values of excitation current is very small resulting in very large core size; the alternative is to use either a combined GOSS/Mumetal core in the case of very low primary sensitivity (125mA) a full Mumetal Core. The use of Mumeta ...
... As can be seen from GOSS typical curve the resultant flux at very low values of excitation current is very small resulting in very large core size; the alternative is to use either a combined GOSS/Mumetal core in the case of very low primary sensitivity (125mA) a full Mumetal Core. The use of Mumeta ...
A powerful new light source for ultraviolet detection of scorpions in
... scorpion taxa. We did not record the UV LED spectrum. Typical published spectra for these devices peak sharply at the rated wavelength of 395 nm, with 50% peak widths of only about 20 nm. lamps suffer from several limitations. Fluorescent lights convert energy stored in a battery to UV photons more ...
... scorpion taxa. We did not record the UV LED spectrum. Typical published spectra for these devices peak sharply at the rated wavelength of 395 nm, with 50% peak widths of only about 20 nm. lamps suffer from several limitations. Fluorescent lights convert energy stored in a battery to UV photons more ...
DC to AC Conversion ( INVERTER ) - ENCON
... Ability to reduce the voltage stress on each power device due to the utilization of multiple levels on the DC bus Important when a high DC side voltage is imposed by an application (e.g. traction systems) Even at low switching frequencies, smaller distortion in the multilevel inverter AC side ...
... Ability to reduce the voltage stress on each power device due to the utilization of multiple levels on the DC bus Important when a high DC side voltage is imposed by an application (e.g. traction systems) Even at low switching frequencies, smaller distortion in the multilevel inverter AC side ...
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.