CHA2110-QDG
... down only by conduction through the package thermal pad (no convection mode considered). The temperature is monitored at the package back-side interface (Tb) as shown below. The system maximum temperature must be adjusted in order to guarantee that Tcase remains below the maximum value specified in ...
... down only by conduction through the package thermal pad (no convection mode considered). The temperature is monitored at the package back-side interface (Tb) as shown below. The system maximum temperature must be adjusted in order to guarantee that Tcase remains below the maximum value specified in ...
Alberta Reliability Standard Voltage and Reactive Control VAR-001-AB-1a
... R6 The ISO must monitor the status of all transmission reactive power resources, automatic voltage regulators, voltage regulating systems and power system stabilizers. R7 Each operator of a transmission facility must monitor the status of all transmission reactive power resources, automatic voltage ...
... R6 The ISO must monitor the status of all transmission reactive power resources, automatic voltage regulators, voltage regulating systems and power system stabilizers. R7 Each operator of a transmission facility must monitor the status of all transmission reactive power resources, automatic voltage ...
XSL Xenus - Copley Controls
... analog, digital 50% PWM or PWM/polarity inputs. In position mode inputs can be incremental position commands from step-motor controllers in Pulse/Direction or CW/CCW format, ±10 Vdc analog, or A/B quadrature commands from a master-encoder. Pulse to position ratio is programmable for electronic geari ...
... analog, digital 50% PWM or PWM/polarity inputs. In position mode inputs can be incremental position commands from step-motor controllers in Pulse/Direction or CW/CCW format, ±10 Vdc analog, or A/B quadrature commands from a master-encoder. Pulse to position ratio is programmable for electronic geari ...
AD830: High Speed, Video Difference Amplifier Data Sheet (Rev B, 01/2003)
... The topology, reduced to its elemental form, is shown in Figure 7. Nonideal effects, such as nonlinearity, bias currents, and limited full scale, are omitted from this model for simplicity, but are discussed later. The key feature of this topology is the use of two, identical voltage-to-current conv ...
... The topology, reduced to its elemental form, is shown in Figure 7. Nonideal effects, such as nonlinearity, bias currents, and limited full scale, are omitted from this model for simplicity, but are discussed later. The key feature of this topology is the use of two, identical voltage-to-current conv ...
ECOTAP VPD The new compact class for distribution transformers
... In the case of wind turbines, voltage regulation transformers can be combined with all drive-train concepts, such as asynchronous generators or full-scale inverters. The voltage regulation transformer can either run on its own or be integrated in the generation unit's regulation system. Given the v ...
... In the case of wind turbines, voltage regulation transformers can be combined with all drive-train concepts, such as asynchronous generators or full-scale inverters. The voltage regulation transformer can either run on its own or be integrated in the generation unit's regulation system. Given the v ...
35 Maximum power transfer theorems and
... Impedance ‘looking-in’ at terminals AB with the 20 V source removed is given by r D 5 ð 15/5 C 15 D 3.75 The equivalent Thévenin circuit supplying terminals AB is shown in Figure 35.7. From condition (2), for maximum power transfer, ...
... Impedance ‘looking-in’ at terminals AB with the 20 V source removed is given by r D 5 ð 15/5 C 15 D 3.75 The equivalent Thévenin circuit supplying terminals AB is shown in Figure 35.7. From condition (2), for maximum power transfer, ...
Charge, Voltage and Capacitance
... Capacitance The ability of a component to store charge is known as capacitance. A device designed to store charge is called a capacitor. A typical capacitor consists of two conducting layers separated by an insulator. These layers are then often rolled into a cylindrical shape. Relationship between ...
... Capacitance The ability of a component to store charge is known as capacitance. A device designed to store charge is called a capacitor. A typical capacitor consists of two conducting layers separated by an insulator. These layers are then often rolled into a cylindrical shape. Relationship between ...
Glossary of Terms - Instrument Repair and Calibration
... Acquisition Time: This term relates to sampling A/Ds which utilize a track/hold amplifier on the input to acquire and hold the analog input signal. Acquisitoin time is the time required by the T/H amplifier to settle to its final value after it is placed in the track module. Active Filter: An activ ...
... Acquisition Time: This term relates to sampling A/Ds which utilize a track/hold amplifier on the input to acquire and hold the analog input signal. Acquisitoin time is the time required by the T/H amplifier to settle to its final value after it is placed in the track module. Active Filter: An activ ...
Introduction to Power Electronics
... physicist J. Jasmin discovered a phenomenon of semiconductance and proposed this effect to be used for ac rectifying. In 1892, German researcher L. Arons invented the first mercury arc vacuum valve. P.C. Hewitt developed the first arc valve in 1901 in USA and a year later, he patented the mercury re ...
... physicist J. Jasmin discovered a phenomenon of semiconductance and proposed this effect to be used for ac rectifying. In 1892, German researcher L. Arons invented the first mercury arc vacuum valve. P.C. Hewitt developed the first arc valve in 1901 in USA and a year later, he patented the mercury re ...
I C E 3 A R x x 8 0...
... increased soft start voltage is emitted by the digital soft start circuit, which in turn releases the duty cycle gradually increase from zero. The duty cycle increases to maximum (which is limited by the transformer design) at the end of the soft start period. When the soft start time ends, IC goes ...
... increased soft start voltage is emitted by the digital soft start circuit, which in turn releases the duty cycle gradually increase from zero. The duty cycle increases to maximum (which is limited by the transformer design) at the end of the soft start period. When the soft start time ends, IC goes ...
IRF820 - Intranet
... effect transistor is an advanced power MOSFET designed, tested, and guaranteed to withstand a specified level of energy in the breakdown avalanche mode of operation. All of these power MOSFETs are designed for applications such as switching regulators, switching convertors, motor drivers, relay driv ...
... effect transistor is an advanced power MOSFET designed, tested, and guaranteed to withstand a specified level of energy in the breakdown avalanche mode of operation. All of these power MOSFETs are designed for applications such as switching regulators, switching convertors, motor drivers, relay driv ...
Low-Complexity MPPT Technique Exploiting the PV Module MPP
... VOC . As it will be further demonstrated, the proposed method presents better results when compared to other offline methods of comparably low complexity. This paper is organized as follows. In the first part, Section II, the mathematical analysis of a PV module electrical model is presented, which ...
... VOC . As it will be further demonstrated, the proposed method presents better results when compared to other offline methods of comparably low complexity. This paper is organized as follows. In the first part, Section II, the mathematical analysis of a PV module electrical model is presented, which ...
ZXCT1012 REDUCED HEIGHT MICRO-POWER CURRENT MONITOR Description
... For best performance RSENSE should be connected as close to the SENSE+ (and SENSE-) pins; which minimizes any series resistance with RSENSE and potential for interference pickup. When choosing appropriate values for RSENSE a compromise must be reached between in-line signal loss (including potential ...
... For best performance RSENSE should be connected as close to the SENSE+ (and SENSE-) pins; which minimizes any series resistance with RSENSE and potential for interference pickup. When choosing appropriate values for RSENSE a compromise must be reached between in-line signal loss (including potential ...
FL7930B Single-Stage Flyback and Boundary-Mode PFC Controller for Lighting
... FL7930B provides over-voltage protection (OVP), openfeedback protection, over-current protection (OCP), input-voltage-absent detection, and under-voltage lockout protection (UVLO). The additional OVP pin can be used to shut down the boost power stage when output voltage exceeds OVP level due to the ...
... FL7930B provides over-voltage protection (OVP), openfeedback protection, over-current protection (OCP), input-voltage-absent detection, and under-voltage lockout protection (UVLO). The additional OVP pin can be used to shut down the boost power stage when output voltage exceeds OVP level due to the ...
MAX3643 155Mbps to 2.5Gbps Burst-Mode Laser Driver General Description Features
... A high-speed differential burst-enable input enables the driver to switch the laser from a dark (output off) condition to full on-condition in less than 2ns. When BEN is inactive, typical modulation and bias currents are 5µA each. Laser modulation current can be set from 10mA to 85mA and bias curren ...
... A high-speed differential burst-enable input enables the driver to switch the laser from a dark (output off) condition to full on-condition in less than 2ns. When BEN is inactive, typical modulation and bias currents are 5µA each. Laser modulation current can be set from 10mA to 85mA and bias curren ...
NCP120 - 150mA, Very Low Dropout Bias Rail CMOS Voltage
... are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of SCILLC’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marki ...
... are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of SCILLC’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marki ...
LT5503
... MODIN (Pin 4): Modulator Carrier Input Pin. This pin is internally biased and should be AC-coupled. An external matching network is required for a 50Ω source. VCCMOD (Pin 5): Power Supply Pin for the I/Q Modulator. This pin should be externally connected to the other VCC pins and decoupled with 1000 ...
... MODIN (Pin 4): Modulator Carrier Input Pin. This pin is internally biased and should be AC-coupled. An external matching network is required for a 50Ω source. VCCMOD (Pin 5): Power Supply Pin for the I/Q Modulator. This pin should be externally connected to the other VCC pins and decoupled with 1000 ...
32 LED-es Knight Rider Villogó PIC-el
... board for shorted tracks or any breaks in the copper pattern. Check the pattern against the published artwork to verify that it is correct. Repair any defects on the PC board before starting assembly. Fig.2 shows the component overlay for the PC board. First, install all the links on the PC board. T ...
... board for shorted tracks or any breaks in the copper pattern. Check the pattern against the published artwork to verify that it is correct. Repair any defects on the PC board before starting assembly. Fig.2 shows the component overlay for the PC board. First, install all the links on the PC board. T ...
difference amplifiers with a rejection factor greater than one
... A measurement problem that arose some time ago nevertheless prompted us to study the question whether difference amplifiers could be developed with an even higher rejection factor. The problem concerned a set-up for measuring the Hall effect on test bars of various materials. The set-up is shown sch ...
... A measurement problem that arose some time ago nevertheless prompted us to study the question whether difference amplifiers could be developed with an even higher rejection factor. The problem concerned a set-up for measuring the Hall effect on test bars of various materials. The set-up is shown sch ...
An Improvement of Transient Current Response of Load
... transformer inrush reduction techniques have been technique is proposed and implemented in a presented, like controlling power-on angle and the voltage synchronous reference frame sag compensator magnitude [8], or actively controlling the transformer controller. The voltage sag compensator consists ...
... transformer inrush reduction techniques have been technique is proposed and implemented in a presented, like controlling power-on angle and the voltage synchronous reference frame sag compensator magnitude [8], or actively controlling the transformer controller. The voltage sag compensator consists ...
Solid-State Circuit Breakers and Current Limiters for
... Most semiconductor devices available today are asymmetric, because the on-state losses of existing symmetric semiconductors are high. Consequently, additional diodes have to be connected in series. The diodes always switch at 50 Hz and only against the on-state voltage of the semiconductor. Therefor ...
... Most semiconductor devices available today are asymmetric, because the on-state losses of existing symmetric semiconductors are high. Consequently, additional diodes have to be connected in series. The diodes always switch at 50 Hz and only against the on-state voltage of the semiconductor. Therefor ...
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.