Experience - ECE Senior Design
... A linear variable differential transducer (LVDT) is primarily used as a position sensor for various applications from robotics, to manufacturing. The problem with LVDTs is that to run them they require that one use a signal generator to drive the primary coil as well as custom circuitry that can ana ...
... A linear variable differential transducer (LVDT) is primarily used as a position sensor for various applications from robotics, to manufacturing. The problem with LVDTs is that to run them they require that one use a signal generator to drive the primary coil as well as custom circuitry that can ana ...
Solid-State Switching Devices for Resistive Loads
... • Loads with temperature-dependent resistor • Loads with ageing after long-time service • Simple indirect control of temperature ...
... • Loads with temperature-dependent resistor • Loads with ageing after long-time service • Simple indirect control of temperature ...
NOVEL HIGH-PERFORMANCE STAND
... battery sources. This results in minimization of partial shading and parasitic capacitance effects on the PV source. The proposed scheme is particularly conducive to long battery life by as it ensures no battery overcharge or deep discharge. For this purpose, the conventional MPPT scheme is replaced ...
... battery sources. This results in minimization of partial shading and parasitic capacitance effects on the PV source. The proposed scheme is particularly conducive to long battery life by as it ensures no battery overcharge or deep discharge. For this purpose, the conventional MPPT scheme is replaced ...
7782HF DC-Coupled AC Amplifier
... • Over 4,000 watts peak output; 2,858 watts RMS into a 2 ohm load. • 40mSec pulses of up to 150 amperes peak into 1 ohm load. • Can be connected (up to 4 units) in series or parallel with additional 7782HF units for increased voltage or current. • Utilizes Bi-Level Smart Power Supply able to generat ...
... • Over 4,000 watts peak output; 2,858 watts RMS into a 2 ohm load. • 40mSec pulses of up to 150 amperes peak into 1 ohm load. • Can be connected (up to 4 units) in series or parallel with additional 7782HF units for increased voltage or current. • Utilizes Bi-Level Smart Power Supply able to generat ...
High current double halfbridge tester
... The power is delivered by a primary transformer and 6 pulse rectification. ...
... The power is delivered by a primary transformer and 6 pulse rectification. ...
electrical engineering department syllabus of paper-i for jnvu
... Matrix Algebra, First order (Linear and Non-Linear) differential equations, Partial differential equations, Laplace Transform. Circuit Theory: Thevenin’s, Norton’s, Superposition, Maximum Power Transfer Theorem and their applications to A.C. & D.C. circuits with dependent and independent sources, Tr ...
... Matrix Algebra, First order (Linear and Non-Linear) differential equations, Partial differential equations, Laplace Transform. Circuit Theory: Thevenin’s, Norton’s, Superposition, Maximum Power Transfer Theorem and their applications to A.C. & D.C. circuits with dependent and independent sources, Tr ...
File sg2525 | allcomponents.ru
... The SG3525A series of pulse width modulator integrated circuits are designed to offer improved performance and lowered external parts count when used in designing all types of switching power supplies. The on-chip + 5.1 V reference is trimmed to ± 1 % and the input common-mode range of the error amp ...
... The SG3525A series of pulse width modulator integrated circuits are designed to offer improved performance and lowered external parts count when used in designing all types of switching power supplies. The on-chip + 5.1 V reference is trimmed to ± 1 % and the input common-mode range of the error amp ...
FPGA Based Speed Control of Three
... bidirectional switches as shown in Fig.1. Three switches are connected in series with stator terminals of the motor and another three are used to provide freewheeling path across stator windings. In this study a saw-tooth PWM strategy has been used to control the speed of three-phase induction motor ...
... bidirectional switches as shown in Fig.1. Three switches are connected in series with stator terminals of the motor and another three are used to provide freewheeling path across stator windings. In this study a saw-tooth PWM strategy has been used to control the speed of three-phase induction motor ...
Basics of Audio Systems Audio Basic Signal Path Signal
... Drawn by designer Used by crew to build system ...
... Drawn by designer Used by crew to build system ...
EVAL-ADM8845 Evaluation Board for Charge Pump Driver for LCD White LED Backlights
... be found in the data sheet for the device. The ADM8845 provides the power required to drive up to 6 white LEDs, using charge pump technology. The LEDs are used for backlighting a color LCD display. To maximize power efficiency, a charge pump that can operate in either a 1x, 1.5x or 2x mode is used. ...
... be found in the data sheet for the device. The ADM8845 provides the power required to drive up to 6 white LEDs, using charge pump technology. The LEDs are used for backlighting a color LCD display. To maximize power efficiency, a charge pump that can operate in either a 1x, 1.5x or 2x mode is used. ...
Abstract
... In the light of the practical importance of PFC, many countries have adopted, or are in the process of adopting, voluntary and mandatory standards concerning current line harmonics injection Active Power Factor Correction (APFC) converters that are based on switch mode technology, are preferred toda ...
... In the light of the practical importance of PFC, many countries have adopted, or are in the process of adopting, voluntary and mandatory standards concerning current line harmonics injection Active Power Factor Correction (APFC) converters that are based on switch mode technology, are preferred toda ...
AMS4155 数据手册DataSheet 下载
... is connected between LX and BST pins to form a floating supply across the power switch driver. The voltage across Cbst is about 5V and is supplied by the internal Vcc supply when LX pin voltage is low. ...
... is connected between LX and BST pins to form a floating supply across the power switch driver. The voltage across Cbst is about 5V and is supplied by the internal Vcc supply when LX pin voltage is low. ...
Product Brief TLE 4309 G Power LED Driver Adjustable Constant Current Source
... brightness and extended lifetimes. The TLE 4309 G is fully capable to withstand harsh requirements due to its internal protection circuits against overload, short circuit and reverse polarity. A Chip temperature monitoring circuit shuts off the circuit and prevents the IC from destruction or damage ...
... brightness and extended lifetimes. The TLE 4309 G is fully capable to withstand harsh requirements due to its internal protection circuits against overload, short circuit and reverse polarity. A Chip temperature monitoring circuit shuts off the circuit and prevents the IC from destruction or damage ...
Gen 3 SupIRBuck ® IR389x Family of Products
... Gen 3 SupIRBuck® IR389x Family of Products The third generation of integrated, feature-rich SupIRBuck® synchronous buck voltage regulators are designed to address the new requirements of emerging energy efficient netcomm, server and storage applications. These new SupIRBuck single output devices fea ...
... Gen 3 SupIRBuck® IR389x Family of Products The third generation of integrated, feature-rich SupIRBuck® synchronous buck voltage regulators are designed to address the new requirements of emerging energy efficient netcomm, server and storage applications. These new SupIRBuck single output devices fea ...
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.