HARMONICS - Understanding the Facts - Part 3
... needs to run. The rectifier consists of semi-conductor devices (such as diodes) that only conduct current in one direction. In order to do so, the voltage on the one end must be greater than the other end. These devices feed current into a capacitor, where the voltage value on the capacitor at any t ...
... needs to run. The rectifier consists of semi-conductor devices (such as diodes) that only conduct current in one direction. In order to do so, the voltage on the one end must be greater than the other end. These devices feed current into a capacitor, where the voltage value on the capacitor at any t ...
BDTIC C C M - P F C
... The ICE2PCS04/G is a 8 pin control IC for power factor correction converters. It comes in both DIP and DSO packages and is suitable for wide range line input applications from 85 to 265 VAC. The IC supports converters in boost topology and it operates in continuous conduction mode (CCM) with average ...
... The ICE2PCS04/G is a 8 pin control IC for power factor correction converters. It comes in both DIP and DSO packages and is suitable for wide range line input applications from 85 to 265 VAC. The IC supports converters in boost topology and it operates in continuous conduction mode (CCM) with average ...
3 – The Power BJT 2
... -Vertical structure power transistors have an additional region of operation called quasisaturation indicated in the characteristic curve of figure 5. Such a feature of a power transistor is a consequence of the lightly doped collector drift region where the collector-base junction supports a low r ...
... -Vertical structure power transistors have an additional region of operation called quasisaturation indicated in the characteristic curve of figure 5. Such a feature of a power transistor is a consequence of the lightly doped collector drift region where the collector-base junction supports a low r ...
AC/DC and Stepper Motors
... was first discovered during an experiment – Hans Christian Ørsted discovered that a compass needle deflected from true north when electric current flowing through a wire was switched on and off ...
... was first discovered during an experiment – Hans Christian Ørsted discovered that a compass needle deflected from true north when electric current flowing through a wire was switched on and off ...
Adjustable 0.6V open collector shunt voltage reference
... The TS4436 is a four-terminal device dedicated to low voltage Switch Mode Power Supplies (SMPS). It integrates a 0.6V voltage reference, an amplifier, and an open collector output transistor in a single package. The TS4436’s operating mode is similar to the well-known standard voltage reference, the ...
... The TS4436 is a four-terminal device dedicated to low voltage Switch Mode Power Supplies (SMPS). It integrates a 0.6V voltage reference, an amplifier, and an open collector output transistor in a single package. The TS4436’s operating mode is similar to the well-known standard voltage reference, the ...
ATA1226_light loads power_FINAL
... Using a boost regulator such as the AS1310 can provide a regulated 3V output, however boost regulators are sometimes shunned by designers because of their notoriously high switching ripple components. The resulting EMI (electromagnetic interference) can play havoc with RF circuitry and sensitive ana ...
... Using a boost regulator such as the AS1310 can provide a regulated 3V output, however boost regulators are sometimes shunned by designers because of their notoriously high switching ripple components. The resulting EMI (electromagnetic interference) can play havoc with RF circuitry and sensitive ana ...
In this paper, an LLC resonant converter design
... This paper proposes a design methodology of the LLC resonant converter for battery charging applications. Since the battery voltage and current are nonlinear, a new TWAE index is proposed based on the characteristics of the battery charging profiles. This index considers the total energy losses duri ...
... This paper proposes a design methodology of the LLC resonant converter for battery charging applications. Since the battery voltage and current are nonlinear, a new TWAE index is proposed based on the characteristics of the battery charging profiles. This index considers the total energy losses duri ...
DC and AC Sensor Type EMVI 401ED
... a primary conductor window. Output voltage, power supply and status information are available via a 9-pin Sub-D male connector. This type of current sensor can be used for DC and / or AC applications due to its excellent frequency characteristics. The operation point of the current sensor is stabili ...
... a primary conductor window. Output voltage, power supply and status information are available via a 9-pin Sub-D male connector. This type of current sensor can be used for DC and / or AC applications due to its excellent frequency characteristics. The operation point of the current sensor is stabili ...
Standard Power Quick Select Guide
... applications using TI components. To minimize the risks associated with Buyers’ products and applications, Buyers should provide adequate design and operating safeguards. TI does not warrant or represent that any license, either express or implied, is granted under any patent right, copyright, mask ...
... applications using TI components. To minimize the risks associated with Buyers’ products and applications, Buyers should provide adequate design and operating safeguards. TI does not warrant or represent that any license, either express or implied, is granted under any patent right, copyright, mask ...
novel current line sensor based on matched optocouplers for active
... fluorescent light (CFL) bulbs, with rated power usually under 50W. Typically, passive PFC can provide a power factor value of around 0.8; this can be pushed to over 0.9 if larger, more complex – thus more expensive – filters are used [1]. Sensing the line current is essential for PFC monitoring but ...
... fluorescent light (CFL) bulbs, with rated power usually under 50W. Typically, passive PFC can provide a power factor value of around 0.8; this can be pushed to over 0.9 if larger, more complex – thus more expensive – filters are used [1]. Sensing the line current is essential for PFC monitoring but ...
RF Power Level Capturing System - Senior Design
... design. Since these parts are highly specialized by application such as cell phone, wireless LAN cards or cordless phones, a more general approach has been taken. A series of filters and down converters will be used instead of commercial transceivers. This allows flexibility in the types of the sign ...
... design. Since these parts are highly specialized by application such as cell phone, wireless LAN cards or cordless phones, a more general approach has been taken. A series of filters and down converters will be used instead of commercial transceivers. This allows flexibility in the types of the sign ...
1 1. CONCEPT “UcD” stands for “Universal class D amplifier”. This is
... The difference between red and blue curves show that indeed the amplifier cannot entirely follow a full-scale step. The green curve shows why: the output filter determines the slew rate limit. Slew rate at 0V in this graph is 9V/us, sufficient to reproduce a 35kHz full-power signal. An alternative w ...
... The difference between red and blue curves show that indeed the amplifier cannot entirely follow a full-scale step. The green curve shows why: the output filter determines the slew rate limit. Slew rate at 0V in this graph is 9V/us, sufficient to reproduce a 35kHz full-power signal. An alternative w ...
EA32799805
... the VSI is in phase with the bus(where the DSTATCOM is connected.) voltage. In steady state, the dc side capacitance is maintained at a fixed voltage and there is no real power exchange, except for losses. The DSTATCOM differs from other reactive power generating devices (such as shunt Capacitors, S ...
... the VSI is in phase with the bus(where the DSTATCOM is connected.) voltage. In steady state, the dc side capacitance is maintained at a fixed voltage and there is no real power exchange, except for losses. The DSTATCOM differs from other reactive power generating devices (such as shunt Capacitors, S ...
Article - Journal of Ecological Engineering
... This paper presents an unconventional view on power electronic converters control as an important factor in environmental protection. Two distinct features that are provided by the control system, namely harmonics elimination and Fault Ride-Through are addressed herein. The paper provides the discus ...
... This paper presents an unconventional view on power electronic converters control as an important factor in environmental protection. Two distinct features that are provided by the control system, namely harmonics elimination and Fault Ride-Through are addressed herein. The paper provides the discus ...
Switching Control Technique of Phase-Shift- Controlled Full
... 3) A small inductor and large capacitor are added to generate a constant voltage source on secondary side, as proposed in [10]. Although the circulating current is reduced and the zero-current switching (ZCS) is achieved by leading leg of full-bridge converter, this will prevent the leading leg from ...
... 3) A small inductor and large capacitor are added to generate a constant voltage source on secondary side, as proposed in [10]. Although the circulating current is reduced and the zero-current switching (ZCS) is achieved by leading leg of full-bridge converter, this will prevent the leading leg from ...
power conditioning in battery chargers using shunt
... means of sensing the grid voltage. Resonant selective harmonic compensator is used for generating ...
... means of sensing the grid voltage. Resonant selective harmonic compensator is used for generating ...
3B40 数据手册DataSheet 下载
... readily hot-swapped under full power and interchanged without disrupting field wiring. The Analog Devices 3B Series Signal Conditioning Subsystem is designed to easily handle signal conditioning problems in measurement and control applications. Some typical uses are in microcomputer-based data acqui ...
... readily hot-swapped under full power and interchanged without disrupting field wiring. The Analog Devices 3B Series Signal Conditioning Subsystem is designed to easily handle signal conditioning problems in measurement and control applications. Some typical uses are in microcomputer-based data acqui ...
Experimental Results on a Wireless Wattmeter Device for the
... account specific requirements for voltage and current measurements, namely signal acquisition and filtering. The power meter prototype is projected for acquiring, processing and computing the main electrical quantities used for quantifying an electrical load connected to an AC low voltage systems, s ...
... account specific requirements for voltage and current measurements, namely signal acquisition and filtering. The power meter prototype is projected for acquiring, processing and computing the main electrical quantities used for quantifying an electrical load connected to an AC low voltage systems, s ...
Pulse-width modulation
Pulse-width modulation (PWM), or pulse-duration modulation (PDM), is a modulation technique used to encode a message into a pulsing signal. Although this modulation technique can be used to encode information for transmission, its main use is to allow the control of the power supplied to electrical devices, especially to inertial loads such as motors. In addition, PWM is one of the two principal algorithms used in photovoltaic solar battery chargers, the other being MPPT.The average value of voltage (and current) fed to the load is controlled by turning the switch between supply and load on and off at a fast rate. The longer the switch is on compared to the off periods, the higher the total power supplied to the load.The PWM switching frequency has to be much higher than what would affect the load (the device that uses the power), which is to say that the resultant waveform perceived by the load must be as smooth as possible. Typically switching has to be done several times a minute in an electric stove, 120 Hz in a lamp dimmer, from few kilohertz (kHz) to tens of kHz for a motor drive and well into the tens or hundreds of kHz in audio amplifiers and computer power supplies.The term duty cycle describes the proportion of 'on' time to the regular interval or 'period' of time; a low duty cycle corresponds to low power, because the power is off for most of the time. Duty cycle is expressed in percent, 100% being fully on.The main advantage of PWM is that power loss in the switching devices is very low. When a switch is off there is practically no current, and when it is on and power is being transferred to the load, there is almost no voltage drop across the switch. Power loss, being the product of voltage and current, is thus in both cases close to zero. PWM also works well with digital controls, which, because of their on/off nature, can easily set the needed duty cycle.PWM has also been used in certain communication systems where its duty cycle has been used to convey information over a communications channel.