HVDC Technology Line Commutated Converters
... • MRTB – metallic return transfer breaker, used for switching from ground return to metallic return • GRTS – ground return transfer switch, used for switching from metallic return to earth return in preparation for restarting pole (NRTS for systems with continuous metallic neutral) • BPS – bypass s ...
... • MRTB – metallic return transfer breaker, used for switching from ground return to metallic return • GRTS – ground return transfer switch, used for switching from metallic return to earth return in preparation for restarting pole (NRTS for systems with continuous metallic neutral) • BPS – bypass s ...
LT Spice – Getting Started Very Quickly First Get the Latest Software
... You should see 10 sine waves as found in the following graphic. This is because we set the Transient simulation time to be 10 msec and the period of our sine is 1 msec. i.e. T= 1/Freq, T= 1/1000 Hz = 1 msec. Notice that the dc offset for the sine waves is ~ 1.65V which we created with our re ...
... You should see 10 sine waves as found in the following graphic. This is because we set the Transient simulation time to be 10 msec and the period of our sine is 1 msec. i.e. T= 1/Freq, T= 1/1000 Hz = 1 msec. Notice that the dc offset for the sine waves is ~ 1.65V which we created with our re ...
Power Electronic Devices For Railway Vehicles
... power supply equipped with dual-redundant inverters and controllers, and the unit itself has a standby redundancy system configuration for improved redundancy. When a failure occurs, the failed unit and standby unit are switched over so that operation will continue. During the system design phase, p ...
... power supply equipped with dual-redundant inverters and controllers, and the unit itself has a standby redundancy system configuration for improved redundancy. When a failure occurs, the failed unit and standby unit are switched over so that operation will continue. During the system design phase, p ...
reactive power control of isolated wind
... reactive power flow on the transmission lines so that maximum power can be exported with minimum transmission loses. In hybrid systems the load is directly connected to the generator terminals itself. Therefore the objective of the reactive power device in this case is to supply the reactive power r ...
... reactive power flow on the transmission lines so that maximum power can be exported with minimum transmission loses. In hybrid systems the load is directly connected to the generator terminals itself. Therefore the objective of the reactive power device in this case is to supply the reactive power r ...
Matlab simulations for power factor correction of switching power 8
... current control is suitable to be used in occasions of high and medium voltage and it most widely used in APFC currently because that its THD（Total Harmonic Distortion）and EMI（ Electro Magnetic Interference）is small, it is not sensitive to noise, the switching frequency is fixed, and the error betwe ...
... current control is suitable to be used in occasions of high and medium voltage and it most widely used in APFC currently because that its THD（Total Harmonic Distortion）and EMI（ Electro Magnetic Interference）is small, it is not sensitive to noise, the switching frequency is fixed, and the error betwe ...
galvanic coupling - emc of electrical systems (part iv.)
... fact that electrical components are not ideal and so they are containing certain parasitic capacitances, inductances and real resistances, is valid. Due to existence of the contents of higher harmonics in currents that flow across the common conductors, such circuits must be taken as circuits with d ...
... fact that electrical components are not ideal and so they are containing certain parasitic capacitances, inductances and real resistances, is valid. Due to existence of the contents of higher harmonics in currents that flow across the common conductors, such circuits must be taken as circuits with d ...
PD54008L-E: 8 W - 7 V LDMOS in PowerFLAT
... Characterization results As we can see from Figure 9, 10 and 11, we can achieve a minimum gain of 12 dB with an input return loss better than 5 dB and a drain efficiency between 55% and 65% over the frequency band 445 ÷ 475 MHz. Even so the output power can be controlled through Vgs, a minimum of 15 ...
... Characterization results As we can see from Figure 9, 10 and 11, we can achieve a minimum gain of 12 dB with an input return loss better than 5 dB and a drain efficiency between 55% and 65% over the frequency band 445 ÷ 475 MHz. Even so the output power can be controlled through Vgs, a minimum of 15 ...
EE362L, Fall 2006 Isolated Firing Circuit for H
... • 24V control signals from the comparators, less 3.2V drop across two series optocoupler LEDs, and with 14mA, requires about 1.5kΩ of resistance in series with the daisy-chained optocouplers • If applied half the time, 24V across a 1.5kΩ resistor would produce about 0.2W. So, it is a good idea to si ...
... • 24V control signals from the comparators, less 3.2V drop across two series optocoupler LEDs, and with 14mA, requires about 1.5kΩ of resistance in series with the daisy-chained optocouplers • If applied half the time, 24V across a 1.5kΩ resistor would produce about 0.2W. So, it is a good idea to si ...
UCCx813-x Low-Power Economy BiCMOS
... Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions. Exposure to absol ...
... Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions. Exposure to absol ...
AND8177/D Audio Circuits Using the NE5532/4
... amplifiers, such as TL083, they show better noise performance, improved output drive capability and considerably higher small--signal and power bandwidths. This makes the devices especially suitable for application in high quality and professional audio equipment, instrumentation and control circuit ...
... amplifiers, such as TL083, they show better noise performance, improved output drive capability and considerably higher small--signal and power bandwidths. This makes the devices especially suitable for application in high quality and professional audio equipment, instrumentation and control circuit ...
MP4460 - Monolithic Power System
... of 150mV. The bootstrap capacitor is charged and regulated to about 5V by the dedicated internal bootstrap regulator. When the voltage between the BST and SW nodes is lower than its regulation, a PMOS pass transistor connected from VIN to BST is turned on. The charging current path is from VIN, BST ...
... of 150mV. The bootstrap capacitor is charged and regulated to about 5V by the dedicated internal bootstrap regulator. When the voltage between the BST and SW nodes is lower than its regulation, a PMOS pass transistor connected from VIN to BST is turned on. The charging current path is from VIN, BST ...
AP1603 STEP-UP DC/DC CONVERTER Description
... through the diode to the output capacitor and load. As the stored energy is depleted, the current ramp down until the diode turns off. At this point, inductor may ring due to residual energy and stray capacitance. The output capacitor stores charge when current flow through the diode is high, and re ...
... through the diode to the output capacitor and load. As the stored energy is depleted, the current ramp down until the diode turns off. At this point, inductor may ring due to residual energy and stray capacitance. The output capacitor stores charge when current flow through the diode is high, and re ...
experiment 1 - Portal UniMAP
... The apparent power supplied to a load equals the product of the load voltage and current. In ac circuits, apparent power is always greater than active power when the load contains reactance, because reactive power must be supplied by the source. The reactive power may be inductive or capacitive, but ...
... The apparent power supplied to a load equals the product of the load voltage and current. In ac circuits, apparent power is always greater than active power when the load contains reactance, because reactive power must be supplied by the source. The reactive power may be inductive or capacitive, but ...
Chapter no - WordPress.com
... flowing through it whenever the current tends to change a back emf is induced in the inductor. As inductor filter is connected in series with load resistor RL. This offers high reactance to a.c. components of frequency 2w, 4w, 6w etc. and small reactance to D.C. components. Amplitude of a.c. compone ...
... flowing through it whenever the current tends to change a back emf is induced in the inductor. As inductor filter is connected in series with load resistor RL. This offers high reactance to a.c. components of frequency 2w, 4w, 6w etc. and small reactance to D.C. components. Amplitude of a.c. compone ...
WECC PV PLant Power Flow Modeling Guidelines
... Interconnection requirements and performance standards addressing reactive power capability from large PV systems are still evolving. Distribution-connected PV systems at generally operated at unity power factor over their entire active power output range. Most inverters designed for residential and ...
... Interconnection requirements and performance standards addressing reactive power capability from large PV systems are still evolving. Distribution-connected PV systems at generally operated at unity power factor over their entire active power output range. Most inverters designed for residential and ...
ICS252 - Integrated Device Technology
... “LF” suffix to the part number are the Pb-Free configuration and are RoHS compliant. The 252M-XXLF and 252MI-XXLF are factory programmed versions of the 252PMLF and 252PMILF. A unique “-XX” suffix is assigned by the factory for each custom configuration, and a separate data sheet is kept on file. Fo ...
... “LF” suffix to the part number are the Pb-Free configuration and are RoHS compliant. The 252M-XXLF and 252MI-XXLF are factory programmed versions of the 252PMLF and 252PMILF. A unique “-XX” suffix is assigned by the factory for each custom configuration, and a separate data sheet is kept on file. Fo ...
solidstatelcd
... enable option - elapsed time is activated when power is applied to pins 1 & 2. For models with enable option - apply signal to pin 4. Note: Power (to pins 1 & 2) must be applied before or at the same time as signal to pin 4. Operation: Apply DC+ to pin 4 for 1 millisecond minimum. Activation (accumu ...
... enable option - elapsed time is activated when power is applied to pins 1 & 2. For models with enable option - apply signal to pin 4. Note: Power (to pins 1 & 2) must be applied before or at the same time as signal to pin 4. Operation: Apply DC+ to pin 4 for 1 millisecond minimum. Activation (accumu ...
Manual R800
... The microprocessor controller circuit uses an advanced eight bit processor and several support chips. The processor U15 includes EE memory for channel frequencies, tones and other information. It also has an asynchronous serial port, a synchronous serial port and an analog to digital convertor. The ...
... The microprocessor controller circuit uses an advanced eight bit processor and several support chips. The processor U15 includes EE memory for channel frequencies, tones and other information. It also has an asynchronous serial port, a synchronous serial port and an analog to digital convertor. The ...
sr 2-125 two-channel amplifier
... non buffered. The maximum number of amplifiers that can be looped together will depend on the output capability of your source component. The digital outputs are buffered and can support multiple amplifiers. Only one output can be used at a time. • Full array of input/output connectivity f ...
... non buffered. The maximum number of amplifiers that can be looped together will depend on the output capability of your source component. The digital outputs are buffered and can support multiple amplifiers. Only one output can be used at a time. • Full array of input/output connectivity f ...
Part 1 Identify Type of Output Module
... As with input modules, output modules rarely supply any power, but instead act as switches. External power supplies are connected to the output card and the card will switch the power on or off for each output. These cards typically have 8 to 16 outputs of the same type and can be purchased with dif ...
... As with input modules, output modules rarely supply any power, but instead act as switches. External power supplies are connected to the output card and the card will switch the power on or off for each output. These cards typically have 8 to 16 outputs of the same type and can be purchased with dif ...
Tutorial - BIT Mesra
... equations to determine the output voltage vo(t). Simplify these equations for the symmetrical square wave with zero average value and obtain the solution. (b) For voltage square wave input of part (a), sketch the output waveform vo(t) for the following cases (i) RC << T (ii) RC T and (iii) RC >> T ...
... equations to determine the output voltage vo(t). Simplify these equations for the symmetrical square wave with zero average value and obtain the solution. (b) For voltage square wave input of part (a), sketch the output waveform vo(t) for the following cases (i) RC << T (ii) RC T and (iii) RC >> T ...
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.