AD01414611470
... But every H-bridge cell has isolated dc capacitor and balancing problem of capacitor voltages exists in this configuration. STATCOM is often requested to operate under asymmetrical condition by power system faults, such as one line grounding or two-line short circuit. These kinds of faults cause unb ...
... But every H-bridge cell has isolated dc capacitor and balancing problem of capacitor voltages exists in this configuration. STATCOM is often requested to operate under asymmetrical condition by power system faults, such as one line grounding or two-line short circuit. These kinds of faults cause unb ...
DS2731 Cache-Memory Battery-Backup Management IC General Description Features
... The DS2731 is a complete power-management solution for modular backup applications. It is well suited for 2.5V and below memory bus voltages. It has a 12V supply input for battery charging and a 3.3V aux supply input for power failure circuitry and memory voltage regulation. The DS2731 includes an i ...
... The DS2731 is a complete power-management solution for modular backup applications. It is well suited for 2.5V and below memory bus voltages. It has a 12V supply input for battery charging and a 3.3V aux supply input for power failure circuitry and memory voltage regulation. The DS2731 includes an i ...
Stray Voltage Test Procedure for Electrical Contractors
... Small electrical potentials or voltages between any metal structure or equipment and floor surfaces, are natural, explainable and expected phenomena in buildings served by grounded neutral electrical systems. The voltage develops as a result of current returning to the source through the grounded ne ...
... Small electrical potentials or voltages between any metal structure or equipment and floor surfaces, are natural, explainable and expected phenomena in buildings served by grounded neutral electrical systems. The voltage develops as a result of current returning to the source through the grounded ne ...
Series 935 Retrofit Guide
... Relay – refers to an electromechanical relay. Remote – set point is adjusted using a remote potentiometer. Panel – the form factor of this controller is mounted through a hole cut in the panel. PI – Proportional and Integral, a control algorithm mode with two functions: proportional action dampens t ...
... Relay – refers to an electromechanical relay. Remote – set point is adjusted using a remote potentiometer. Panel – the form factor of this controller is mounted through a hole cut in the panel. PI – Proportional and Integral, a control algorithm mode with two functions: proportional action dampens t ...
Series 965 Retrofit Guide
... Relay – refers to an electromechanical relay. Remote – set point is adjusted using a remote potentiometer. Panel – the form factor of this controller is mounted through a hole cut in the panel. PI – Proportional and Integral, a control algorithm mode with two functions: proportional action dampens t ...
... Relay – refers to an electromechanical relay. Remote – set point is adjusted using a remote potentiometer. Panel – the form factor of this controller is mounted through a hole cut in the panel. PI – Proportional and Integral, a control algorithm mode with two functions: proportional action dampens t ...
Diagnostic News On-Line Monitoring of Partial Discharge in Voltage Source January 2015
... power frequency AC cycle (a pulse phase analysis plot, sometimes known as a phase‐resolved PD plot—see Figure 2). In the past the TGA‐B was expecting either 50 Hz or 60 Hz power fre‐ quency. If the frequency was neither of these, then the instrument would not “synchronize”. ...
... power frequency AC cycle (a pulse phase analysis plot, sometimes known as a phase‐resolved PD plot—see Figure 2). In the past the TGA‐B was expecting either 50 Hz or 60 Hz power fre‐ quency. If the frequency was neither of these, then the instrument would not “synchronize”. ...
3-Channel SDTV Video Amplifier with 5th-Order Filters and 5.2
... This rationale is also used for the chroma (C') term. Chroma is derived from the nonlinear R'G'B' terms and therefore it is also nonlinear. True chominance (C) is derived from linear RGB, and thus the difference between chroma (C') and chrominance (C) exists. The color difference signals (P'B/ P'R/U ...
... This rationale is also used for the chroma (C') term. Chroma is derived from the nonlinear R'G'B' terms and therefore it is also nonlinear. True chominance (C) is derived from linear RGB, and thus the difference between chroma (C') and chrominance (C) exists. The color difference signals (P'B/ P'R/U ...
Tender No.: 07/SPS/EE/2016 Dated
... All points are terminated at the front panel for wiring for each experiment SINGLE PHASE HALF AND FULL BRIDGE INVERTER Specifications: SCRS rated 600v/12A , diodes rated 600V/6A provided Commutating capacitors and inductors are also provided Four isolated gate pulses are provided to fire the four SC ...
... All points are terminated at the front panel for wiring for each experiment SINGLE PHASE HALF AND FULL BRIDGE INVERTER Specifications: SCRS rated 600v/12A , diodes rated 600V/6A provided Commutating capacitors and inductors are also provided Four isolated gate pulses are provided to fire the four SC ...
papers in PDF format
... Therefore theses problems are to be addressed in case of loads which are voltage sensitive [1]. Of late there were many researches on the usage of VSC for solving voltage problems in all grid-connected applications [2], [3], [4]. There have been new devices coming up in power distribution systems th ...
... Therefore theses problems are to be addressed in case of loads which are voltage sensitive [1]. Of late there were many researches on the usage of VSC for solving voltage problems in all grid-connected applications [2], [3], [4]. There have been new devices coming up in power distribution systems th ...
Series-Parallel Circuits
... Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. ...
... Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. ...
Application Notes - NXP Semiconductors
... Life support – These products are not designed for use in life support appliances, devices or systems where malfunction of these products can reasonably be expected to result in personal injury. Philips Semiconductors customers using or selling these products for use in such applications do so at th ...
... Life support – These products are not designed for use in life support appliances, devices or systems where malfunction of these products can reasonably be expected to result in personal injury. Philips Semiconductors customers using or selling these products for use in such applications do so at th ...
LT1033 - 3A Negative Adjustable Regulator
... IADJ on the output voltage, but the no-load current drain on the regulator will be increased. Typical values for R1 are between 100Ω and 300Ω, giving 12.5mA and 4.2mA no-load current respectively. There is an additional consideration in selecting R1, the minimum load current specification of the reg ...
... IADJ on the output voltage, but the no-load current drain on the regulator will be increased. Typical values for R1 are between 100Ω and 300Ω, giving 12.5mA and 4.2mA no-load current respectively. There is an additional consideration in selecting R1, the minimum load current specification of the reg ...
AN-7513 Parallel Operation Of Semiconductor Switches
... The on-state is again a relatively uncritical and uneventful period (Figure 2). Most devices in switching applications are overdriven and differences in gain or transconductance do not translate into proportional output current. ...
... The on-state is again a relatively uncritical and uneventful period (Figure 2). Most devices in switching applications are overdriven and differences in gain or transconductance do not translate into proportional output current. ...
Introduction to Electronics
... region marked “DCV” for DC circuits or “ACV” for AC circuits. Choose a setting that is the lowest possible and still above your expected potential difference. Place the leads at opposite ends of a circuit element or combination of elements and observe the potential difference or potential difference ...
... region marked “DCV” for DC circuits or “ACV” for AC circuits. Choose a setting that is the lowest possible and still above your expected potential difference. Place the leads at opposite ends of a circuit element or combination of elements and observe the potential difference or potential difference ...
FODM8061 — High Noise Imm Features Description
... are genuine parts, have full traceability, meet Fairchild's quality standards for handling and storage and provide access to Fairchild's full range of up-to-date technical and product information. Fairchild and our Authorized Distrib ...
... are genuine parts, have full traceability, meet Fairchild's quality standards for handling and storage and provide access to Fairchild's full range of up-to-date technical and product information. Fairchild and our Authorized Distrib ...
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.