HV Capacitor Reliability Information, doc
... equation that is used by the industry to calculate reliability information at a user selected operating point based on test data obtained at max. voltage and temperature. This so called PV equation (Prokopoviz and Vaskas) is used predict lifetime at a given temperature and voltage if you have known ...
... equation that is used by the industry to calculate reliability information at a user selected operating point based on test data obtained at max. voltage and temperature. This so called PV equation (Prokopoviz and Vaskas) is used predict lifetime at a given temperature and voltage if you have known ...
Oscilloscope Tutorial
... • This is the device that transfers electric power from a source to a load using electronic circuits. • Typical application of power supplies is to convert utility's AC input power to a regulated voltage(s) required for electronic equipment. • Depending on the mode of operation of power semiconducto ...
... • This is the device that transfers electric power from a source to a load using electronic circuits. • Typical application of power supplies is to convert utility's AC input power to a regulated voltage(s) required for electronic equipment. • Depending on the mode of operation of power semiconducto ...
Frequency Foldback Current Mode PWM
... Theory of Operation The UCC3884 current-mode PWM controller contains a programmable oscillator which includes the ability to synchronize multiple PWMs. The positive and negative sloped portions of the oscillator waveform (measured at CT), have time intervals that are set by external resistors at ION ...
... Theory of Operation The UCC3884 current-mode PWM controller contains a programmable oscillator which includes the ability to synchronize multiple PWMs. The positive and negative sloped portions of the oscillator waveform (measured at CT), have time intervals that are set by external resistors at ION ...
THAT Corporation Design Note 106
... All too often, we get frantic calls from designers measuring THD and/or noise well above the specifications on the 2180XX and 2181XX data sheets, wondering if layout is a factor. Well, sometimes it is, but it could be the result of other factors as well. All 2180XXs and 2181XXs are 100% tested for n ...
... All too often, we get frantic calls from designers measuring THD and/or noise well above the specifications on the 2180XX and 2181XX data sheets, wondering if layout is a factor. Well, sometimes it is, but it could be the result of other factors as well. All 2180XXs and 2181XXs are 100% tested for n ...
Reactive & Voltage Maintenance - Joint Proposal
... • Bus voltage maintenance is the objective and the performance criteria in proposal aligns incentives with that, • Per interval payment based on fixed base case value sets an annual cap of potential payments, • Method is not complex with a minimum of variables for ISO to manage/collect from telemetr ...
... • Bus voltage maintenance is the objective and the performance criteria in proposal aligns incentives with that, • Per interval payment based on fixed base case value sets an annual cap of potential payments, • Method is not complex with a minimum of variables for ISO to manage/collect from telemetr ...
Document
... is called Direct Current (DC) – Batteries are a common source of DC – Most electronic devices are powered by DC ...
... is called Direct Current (DC) – Batteries are a common source of DC – Most electronic devices are powered by DC ...
AND8146/D High Current LED − Capacitive Drop Drive
... D, and the parallel combination of RL and C2. When the input voltage has charged C2 to one diode drop below the Zener diode voltage, VZ, the current will have another parallel path in which to flow. The excess current flows through the Zener diode, Z, while capacitor C2 remains charged and the volta ...
... D, and the parallel combination of RL and C2. When the input voltage has charged C2 to one diode drop below the Zener diode voltage, VZ, the current will have another parallel path in which to flow. The excess current flows through the Zener diode, Z, while capacitor C2 remains charged and the volta ...
Series and Parallel circuits
... Components in an electrical circuit are in series when they are connected one after the other, so that the same current flows through both of them. Components are in parallel when they are in alternate branches of a circuit. Series and parallel circuits function differently. You may have noticed the ...
... Components in an electrical circuit are in series when they are connected one after the other, so that the same current flows through both of them. Components are in parallel when they are in alternate branches of a circuit. Series and parallel circuits function differently. You may have noticed the ...
Investigation of LCR Resonance - Hong Kong University of Science
... You are first required to construct one capacitor and one inductor by using household devices or elementary electrical components before the day of experiment and bring them to the Science Day Camp. The capacitor and inductor constructed are recommended to reach the values of at least 50nF (for capa ...
... You are first required to construct one capacitor and one inductor by using household devices or elementary electrical components before the day of experiment and bring them to the Science Day Camp. The capacitor and inductor constructed are recommended to reach the values of at least 50nF (for capa ...
Datasheet - Albalá Ingenieros
... the last correct frame when the input signal is lost. • Allows adjustment of luminance, chrominance and black levels. • Performs complete EDH packet processing. ...
... the last correct frame when the input signal is lost. • Allows adjustment of luminance, chrominance and black levels. • Performs complete EDH packet processing. ...
C2175 Datasheet
... mode; the remainder charges capacitor Caux. As soon as the AUX pin voltage rises to VAUXRUN, the C2175 changes to Initialise mode. Current consumption increases to IAUXRUN while internal circuits are enabled. At the same time the internal clock starts the timer that ensures the VSHUTDN threshold to ...
... mode; the remainder charges capacitor Caux. As soon as the AUX pin voltage rises to VAUXRUN, the C2175 changes to Initialise mode. Current consumption increases to IAUXRUN while internal circuits are enabled. At the same time the internal clock starts the timer that ensures the VSHUTDN threshold to ...
Current, Voltage and Resistance
... When the length of the wire increases, resistance increases. Resistance is caused by electrons colliding with metal ions. When the length of the wire is increased, the electrons have to travel further, so more collisions will occur. ...
... When the length of the wire increases, resistance increases. Resistance is caused by electrons colliding with metal ions. When the length of the wire is increased, the electrons have to travel further, so more collisions will occur. ...
LR9641 DESCRIPTION FEATURES
... as follows:VRIPPLE = IL(PEAK)[1 / (2π x fOSC x COUT)] If the capacitor has significant ESR, the output ripple component due to capacitor ESR is as follows: VRIPPLE(ESR) = IL(PEAK) x ESR ...
... as follows:VRIPPLE = IL(PEAK)[1 / (2π x fOSC x COUT)] If the capacitor has significant ESR, the output ripple component due to capacitor ESR is as follows: VRIPPLE(ESR) = IL(PEAK) x ESR ...
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.