control of reactive power and voltage
... midpoint voltage at 1.0 pu when P = 1.4 Po) maximum power transfer capability increased to 1.58 pu of natural power (SIL); represents an increase of 0.16 pu over the uncompensated case voltage regulation is poor, i.e., the voltage magnitude is very sensitive to variations in power ...
... midpoint voltage at 1.0 pu when P = 1.4 Po) maximum power transfer capability increased to 1.58 pu of natural power (SIL); represents an increase of 0.16 pu over the uncompensated case voltage regulation is poor, i.e., the voltage magnitude is very sensitive to variations in power ...
File - ELECTRICAL ENGINEERING DEPT, DCE
... lap joints takes1/4 times as much reactive mmf as if required per meter of core. If Bm = 1.1 wb/m2, determine the following: (i) The number of turns on the 6600V winding (ii) The no load current. Assume an amplitude factor of 1.52 and that for given flux density mmf per meter = 232ac/m, specific los ...
... lap joints takes1/4 times as much reactive mmf as if required per meter of core. If Bm = 1.1 wb/m2, determine the following: (i) The number of turns on the 6600V winding (ii) The no load current. Assume an amplitude factor of 1.52 and that for given flux density mmf per meter = 232ac/m, specific los ...
Switch Debounce Filter
... In a typical switching circuit, a pull up or pull down resistor is connected to the wiper of the switch. In our case, a 20K-ohm resistor is connected between the switch wiper and –24V. The logic input circuit used in our test equipment is the Systran DID48 logic input module. This module has an inp ...
... In a typical switching circuit, a pull up or pull down resistor is connected to the wiper of the switch. In our case, a 20K-ohm resistor is connected between the switch wiper and –24V. The logic input circuit used in our test equipment is the Systran DID48 logic input module. This module has an inp ...
J.R.Warren, K.A. Rosowski, and D.J. Perreault, “Transistor Selection and Design of a VHF dc-dc Power Converter,” IEEE Transactions on Power Electronics , Vol. 23, No. 1, pp. 27-37, Jan. 2008.
... on operation at fixed switching frequency and duty ratio (with on/off control for regulation) rather than constant-off-time/variable-frequency control as in [27], we can employ sinusoidal resonant gating for efficient operation at VHF frequencies. Likewise, we need not rely on the switch body diode ...
... on operation at fixed switching frequency and duty ratio (with on/off control for regulation) rather than constant-off-time/variable-frequency control as in [27], we can employ sinusoidal resonant gating for efficient operation at VHF frequencies. Likewise, we need not rely on the switch body diode ...
MAX1636CPUEVKIT
... The MAX1636 CPU supply evaluation kit (EV kit) circuit is intended for converting high-voltage battery power into a low-voltage supply rail for next-generation notebook CPU cores. The output is digitally adjustable between 1.25V and 2V, in 50mV increments. The input range is +7V to +22V. It delivers ...
... The MAX1636 CPU supply evaluation kit (EV kit) circuit is intended for converting high-voltage battery power into a low-voltage supply rail for next-generation notebook CPU cores. The output is digitally adjustable between 1.25V and 2V, in 50mV increments. The input range is +7V to +22V. It delivers ...
IC30 Circuit Description
... The IC30 is a 30 watt mixer amplifier which operates on 230/240 VAC, 50Hz or 12 VDC via an external DC power supply source. The amplifier is supplied free standing with rubber feet but can be rack mounted via an optional rack mount kit (IC30RMK). The IC30 will deliver 30 watts into a load of 4 ohms, ...
... The IC30 is a 30 watt mixer amplifier which operates on 230/240 VAC, 50Hz or 12 VDC via an external DC power supply source. The amplifier is supplied free standing with rubber feet but can be rack mounted via an optional rack mount kit (IC30RMK). The IC30 will deliver 30 watts into a load of 4 ohms, ...
ECE 2205 Lab 4 Operational amplifier circuits
... In the lab, we will use the 741 operational amplifier, which has been around for decades. It is an integrated circuit (meaning that all of its components are built into a single piece of silicon) that can be packaged in a variety of ways. The package we will use is the 8-pin DIP (dual in-line packag ...
... In the lab, we will use the 741 operational amplifier, which has been around for decades. It is an integrated circuit (meaning that all of its components are built into a single piece of silicon) that can be packaged in a variety of ways. The package we will use is the 8-pin DIP (dual in-line packag ...
ILD4180 1.8A DC/DC Step-Down Converter LED Driver for Industrial Applications
... Enable Function: With the enable pin (EN) the device can be set in off-state reducing the current consumption to typ. 0.1µA. The enable function features an integrated pull down resistor which ensures that the IC is shut down and the power-switch is off in case the pin EN is not connected. Device Wa ...
... Enable Function: With the enable pin (EN) the device can be set in off-state reducing the current consumption to typ. 0.1µA. The enable function features an integrated pull down resistor which ensures that the IC is shut down and the power-switch is off in case the pin EN is not connected. Device Wa ...
Synchronous Voltage Source Inverter Using FCMLI
... A STATCOM is connected at the midpoint of the transmission line. The transmission line discussed in the previous section has been again taken in this case. The PSCAD/EMTDC simulation diagram of a STATCOM connected to transmission line at the midpoint line through a coupling transformer and a smoothi ...
... A STATCOM is connected at the midpoint of the transmission line. The transmission line discussed in the previous section has been again taken in this case. The PSCAD/EMTDC simulation diagram of a STATCOM connected to transmission line at the midpoint line through a coupling transformer and a smoothi ...
A New Harmonic Detection Method for Shunt Active
... power, and power losses pertaining to the former two [1 ]. Different solutions to minimize the effects of nonlinear loads in electric power systems (nonsinusoidal voltages, harmonic currents, nonbalanced conditions) have been proposed. As a mater of fact, there is various types of compensators propo ...
... power, and power losses pertaining to the former two [1 ]. Different solutions to minimize the effects of nonlinear loads in electric power systems (nonsinusoidal voltages, harmonic currents, nonbalanced conditions) have been proposed. As a mater of fact, there is various types of compensators propo ...
Frequency Switching Speed in Microwave Signal
... high spurious content. So whatever speed advantages are gained in the synthesizer, elements such as banks of switched banded multipliers to get to higher frequencies, (more details on these later), and filters to help attenuate its spurious signals contribute to a degradation in overall switching s ...
... high spurious content. So whatever speed advantages are gained in the synthesizer, elements such as banks of switched banded multipliers to get to higher frequencies, (more details on these later), and filters to help attenuate its spurious signals contribute to a degradation in overall switching s ...
COMMON EMITTER RC COUPLED AMPLIFIER
... The common emitter RC coupled amplifier is one of the simplest and elementary transistor amplifier that can be made. Don’t expect much boom from this little circuit, the main purpose of this circuit is pre-amplification i.e to make weak signals strong enough for further processing or amplification. ...
... The common emitter RC coupled amplifier is one of the simplest and elementary transistor amplifier that can be made. Don’t expect much boom from this little circuit, the main purpose of this circuit is pre-amplification i.e to make weak signals strong enough for further processing or amplification. ...
emergency power – storage batteries
... Mechanical Frequency Regulation – This traditional class of generator creates 60 Hz AC current by spinning the armature at 3600 RPM or 60 revolutions per second. Special armatures are used by diesel generators that spin at 1800 RPM. A mechanical regulator on the motor throttle maintains a constant R ...
... Mechanical Frequency Regulation – This traditional class of generator creates 60 Hz AC current by spinning the armature at 3600 RPM or 60 revolutions per second. Special armatures are used by diesel generators that spin at 1800 RPM. A mechanical regulator on the motor throttle maintains a constant R ...
Giving Delta-Sigma Converters a Gain Boost with a Front End Analog Gain Stage
... Of the sensors discussed, the thermocouple and strain gage present the most challenging issues in digitizing the signal due to the extremely low ranges at their outputs. A circuit designed to sense the voltage changes of a thermocouple is shown in Figure 1. The single supply temperature sensing syst ...
... Of the sensors discussed, the thermocouple and strain gage present the most challenging issues in digitizing the signal due to the extremely low ranges at their outputs. A circuit designed to sense the voltage changes of a thermocouple is shown in Figure 1. The single supply temperature sensing syst ...
Bulletin 64-3-*Voltage rating of a photovoltaic source circuit
... Rule 64-202(1) requires the open circuit voltage marked on a PV module to be multiplied by a 125% factor for the temperature adjustment. This adjustment factor is based on a minimum module temperature of – 40 °C. In addition, Rule 64-202(2) recognizes the use of the temperature coefficient factor li ...
... Rule 64-202(1) requires the open circuit voltage marked on a PV module to be multiplied by a 125% factor for the temperature adjustment. This adjustment factor is based on a minimum module temperature of – 40 °C. In addition, Rule 64-202(2) recognizes the use of the temperature coefficient factor li ...
IOSR Journal of Electronics and Communication Engineering (IOSR-JECE)
... electronics and energy saving lamp and so on. The development of power MOSFETS began in 1970s VMOS (vertical MOSFET), after a decade DDMOS (double diffused MOSFET) technology was introduced. The VDMOS (vertically diffused MOSFET and LDMOS (laterally diffused MOSFET) were derived from the DDMOS techn ...
... electronics and energy saving lamp and so on. The development of power MOSFETS began in 1970s VMOS (vertical MOSFET), after a decade DDMOS (double diffused MOSFET) technology was introduced. The VDMOS (vertically diffused MOSFET and LDMOS (laterally diffused MOSFET) were derived from the DDMOS techn ...
Torque, Moment of Inertia and angular motion
... ** In an equation, if the symbol is for a rotational quantity, it must be in radians. Sometimes radians "just appears" or simply "disappears" do not be alarmed by this. This is due to the definition of radians. ...
... ** In an equation, if the symbol is for a rotational quantity, it must be in radians. Sometimes radians "just appears" or simply "disappears" do not be alarmed by this. This is due to the definition of radians. ...
PLL synthesizing oscillator (3)
... It is the crystal oscillator by the inverter circuit. The reference frequency this time is 4.096 MHz. It divides the reference frequency in 4096(2 12) and it makes the phase comparison frequency of 1KHz. It compares the reference frequency by 4060 and the comparison frequency by 4522 by the phase. W ...
... It is the crystal oscillator by the inverter circuit. The reference frequency this time is 4.096 MHz. It divides the reference frequency in 4096(2 12) and it makes the phase comparison frequency of 1KHz. It compares the reference frequency by 4060 and the comparison frequency by 4522 by the phase. W ...
Variable-frequency drive
A variable-frequency drive (VFD) (also termed adjustable-frequency drive, variable-speed drive, AC drive, micro drive or inverter drive) is a type of adjustable-speed drive used in electro-mechanical drive systems to control AC motor speed and torque by varying motor input frequency and voltage.VFDs are used in applications ranging from small appliances to the largest of mine mill drives and compressors. However, around 25% of the world's electrical energy is consumed by electric motors in industrial applications, which are especially conducive for energy savings using VFDs in centrifugal load service, and VFDs' global market penetration for all applications is still relatively small. That lack of penetration highlights significant energy efficiency improvement opportunities for retrofitted and new VFD installations.Over the last four decades, power electronics technology has reduced VFD cost and size and has improved performance through advances in semiconductor switching devices, drive topologies, simulation and control techniques, and control hardware and software.VFDs are available in a number of different low- and medium-voltage AC-AC and DC-AC topologies.