logical_circuits - Kent State University
... Kent State University. The complete set of comments are available on his Web site: http://www.cs.kent.edu/~batcher/4_3_2/. As Prof. Batcher explains, the problem with diagrams 4.16-4.18 is "There are no resistors in these diagrams to limit the current through the transistors–when a transistor is tur ...
... Kent State University. The complete set of comments are available on his Web site: http://www.cs.kent.edu/~batcher/4_3_2/. As Prof. Batcher explains, the problem with diagrams 4.16-4.18 is "There are no resistors in these diagrams to limit the current through the transistors–when a transistor is tur ...
Examples #4 - ECE at Utah
... 4.. Design the circuit shown below to obtain a dc voltage of +2V aatt each of the drains of Q1 and Q2 when VG1=VG2=0V. Operate allll transistors at Vov=0.2V and assume that for the process technology in which the th circuit is fabricated, Vtn=0.5V and kn’=250µA/V2. Neglect channel-length length modu ...
... 4.. Design the circuit shown below to obtain a dc voltage of +2V aatt each of the drains of Q1 and Q2 when VG1=VG2=0V. Operate allll transistors at Vov=0.2V and assume that for the process technology in which the th circuit is fabricated, Vtn=0.5V and kn’=250µA/V2. Neglect channel-length length modu ...
MS Word
... (b) Now suppose we switch transistors where the new transistor has a 50% higher value for kn. By what percentage does drain current ID change as a result? ...
... (b) Now suppose we switch transistors where the new transistor has a 50% higher value for kn. By what percentage does drain current ID change as a result? ...
A lot thanks go to Head of Computer Department Dr. Luai Malhis
... the rotation of the rotor and applied to the armature windings. The motor speed is then proportional to the root-mean-square (RMS) value of the armature voltage and is set by the ESC in response to a pulse width modulated control signal. The relationship between the control signal and the voltage le ...
... the rotation of the rotor and applied to the armature windings. The motor speed is then proportional to the root-mean-square (RMS) value of the armature voltage and is set by the ESC in response to a pulse width modulated control signal. The relationship between the control signal and the voltage le ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
... modern commercial and industrial environment particularly in applications for AC-DC conversions.The AC-DC converters (rectifier) are by far the largest group of power switching circuits applied in industrial applications. These type of converters are widely used in adjustable-speed drives (ASD), swi ...
... modern commercial and industrial environment particularly in applications for AC-DC conversions.The AC-DC converters (rectifier) are by far the largest group of power switching circuits applied in industrial applications. These type of converters are widely used in adjustable-speed drives (ASD), swi ...
J0460455055
... Abstract Power electronic converters, especially DC/AC Sinusoidal Pulse Width Modulation inverters have been extending their range of use in industry because of their numerous advantages. They typically synthesize the stair –case voltage waveform (from several dc sources) which has reduced harmonic ...
... Abstract Power electronic converters, especially DC/AC Sinusoidal Pulse Width Modulation inverters have been extending their range of use in industry because of their numerous advantages. They typically synthesize the stair –case voltage waveform (from several dc sources) which has reduced harmonic ...
analysis and simulation of a new shunt active power filter using
... harmonic problems. One of these methods, the Active Power Filters (APFs) technique has been studied and developed in the recent years to solve the harmonic problems. The main objective of this paper is to model a new shunt active power filter using a three-phase 11-level cascaded multi level inverte ...
... harmonic problems. One of these methods, the Active Power Filters (APFs) technique has been studied and developed in the recent years to solve the harmonic problems. The main objective of this paper is to model a new shunt active power filter using a three-phase 11-level cascaded multi level inverte ...
Voltage-Source Active Power Filter Based on Multilevel Converter
... the proposed topology for a shunt APF using the multilevel converter described before. It can be seen that the voltage generated by this filter is quite similar to a sinusoidal waveform. The small steps of each level are almost negligible. The contrast between these two technologies is evident. One ...
... the proposed topology for a shunt APF using the multilevel converter described before. It can be seen that the voltage generated by this filter is quite similar to a sinusoidal waveform. The small steps of each level are almost negligible. The contrast between these two technologies is evident. One ...
EA20 SEriES EA20 SEriES
... iris, and the sensor must be at least 1/2” from any conductors, as enclosure can reach 87°C during operation (at 200A and 60°C ambient temperature). Use wire rated at a minimum of 90°C. 3. Install the adjustable mounting bracket to the back of the enclosure using the ...
... iris, and the sensor must be at least 1/2” from any conductors, as enclosure can reach 87°C during operation (at 200A and 60°C ambient temperature). Use wire rated at a minimum of 90°C. 3. Install the adjustable mounting bracket to the back of the enclosure using the ...
3. starting a permanent split-capacitor motor
... type of motor has a capacitor (C) permanently connected in series with the auxiliary windings. This is the main reason why this motor is called single-phase with capacitor motor. This type of motor has not a starting switch and operates in the same way as a capacitor-start capacitor-run induction mo ...
... type of motor has a capacitor (C) permanently connected in series with the auxiliary windings. This is the main reason why this motor is called single-phase with capacitor motor. This type of motor has not a starting switch and operates in the same way as a capacitor-start capacitor-run induction mo ...
Single phase controller with digital interface
... magnitude, and all the output voltage related thresholds (PG, UV, OV). When the external reference is selected, the remote ground compensation is disabled. It is assumed that the external reference is referred to the remote feedback. When the REFIN < 0.4 V (direct) or < 0.8 V (divided by 2), the UV ...
... magnitude, and all the output voltage related thresholds (PG, UV, OV). When the external reference is selected, the remote ground compensation is disabled. It is assumed that the external reference is referred to the remote feedback. When the REFIN < 0.4 V (direct) or < 0.8 V (divided by 2), the UV ...
PDF File
... approaches immediately. Among them, the most applicable approach in high-power systems is using pulse width modulation (PWM) dc–dc converters to generate PV characteristics. However, shunt resistors are required to limit output voltage at extremely high duty-ratio, and serial resistors are used to i ...
... approaches immediately. Among them, the most applicable approach in high-power systems is using pulse width modulation (PWM) dc–dc converters to generate PV characteristics. However, shunt resistors are required to limit output voltage at extremely high duty-ratio, and serial resistors are used to i ...
Power Supply Specifications (1746-P1, -P2, -P3, and -P4)
... CE(7), European Union 89/336/EEC EMC Directive, compliant with: EN 50082-2 Industrial Immunity and EN50081-2 Industrial Emissions European Union 73/23/EEC LVD Directive, compliant with: EN61131-2 Programmable Controllers C-Tick, Australian Radio Communications Act, compliant with: AS/NZS 2064 Indust ...
... CE(7), European Union 89/336/EEC EMC Directive, compliant with: EN 50082-2 Industrial Immunity and EN50081-2 Industrial Emissions European Union 73/23/EEC LVD Directive, compliant with: EN61131-2 Programmable Controllers C-Tick, Australian Radio Communications Act, compliant with: AS/NZS 2064 Indust ...
DS3991 General Description Features
... The DS3991 uses burst dimming to control the lamp brightness. During the high period of the DPWM cycle, the lamp is driven at the selected lamp frequency (40kHz to 80kHz) as shown in Figure 1. This part of the cycle is also called the burst period because of the lamp-frequency burst that occurs duri ...
... The DS3991 uses burst dimming to control the lamp brightness. During the high period of the DPWM cycle, the lamp is driven at the selected lamp frequency (40kHz to 80kHz) as shown in Figure 1. This part of the cycle is also called the burst period because of the lamp-frequency burst that occurs duri ...
Solid-State Relays 31
... ➌ Inrush current resistivity is the ability of an SSR to withstand a large surge current for a short period of time. Surges are considered non-repetitive (max. repeatability once every 5 seconds). Keep the inrush current to half the rated value if it occurs repetitively. Exceeding the non-repetitive ...
... ➌ Inrush current resistivity is the ability of an SSR to withstand a large surge current for a short period of time. Surges are considered non-repetitive (max. repeatability once every 5 seconds). Keep the inrush current to half the rated value if it occurs repetitively. Exceeding the non-repetitive ...
MAX8896 Dual PWM Step-Down Converter in a 2mm x General Description
... (typ) bypass FET to power the PA directly from the battery during high-power transmission. A second highefficiency PWM step-down converter (OUT2) supplies power directly to a high PSRR, low output noise, 200mA low-dropout linear regulator (LDO) to power the RF transceiver. Fast switching allows the ...
... (typ) bypass FET to power the PA directly from the battery during high-power transmission. A second highefficiency PWM step-down converter (OUT2) supplies power directly to a high PSRR, low output noise, 200mA low-dropout linear regulator (LDO) to power the RF transceiver. Fast switching allows the ...
What is a Silicon Transient Voltage Suppressor and how does it
... that caused by electrostatic discharge, inductive load switching and induced lightning. Within the TVS, damaging voltage spikes are limited by clamping or avalanche action of a rugged silicon pn junction which reduces the amplitude of the transient to a nondestructive level. In a circuit, the TVS sh ...
... that caused by electrostatic discharge, inductive load switching and induced lightning. Within the TVS, damaging voltage spikes are limited by clamping or avalanche action of a rugged silicon pn junction which reduces the amplitude of the transient to a nondestructive level. In a circuit, the TVS sh ...
ATA1602_miniaturising the power circuit in
... This approach is the enemy of miniaturization, requiring a large board footprint for the devices themselves and for the board traces connecting them to the rest of the system. This is without even considering the potential board layout difficulties associated with the management of radiated emission ...
... This approach is the enemy of miniaturization, requiring a large board footprint for the devices themselves and for the board traces connecting them to the rest of the system. This is without even considering the potential board layout difficulties associated with the management of radiated emission ...
HCF4066BEY
... Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implicatio ...
... Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implicatio ...
T4900 VAr Load Sharer
... The T4900 calculates I x sin f, represen ting the reactive kVAr load. The reactive load on each generator is compared with the reactive load on the other generators. Contact signals for increase and decrease with proportional pulses are obtained as output. These pulses regulate the voltage and ...
... The T4900 calculates I x sin f, represen ting the reactive kVAr load. The reactive load on each generator is compared with the reactive load on the other generators. Contact signals for increase and decrease with proportional pulses are obtained as output. These pulses regulate the voltage and ...
The black start procedures should contain the following
... should be started up and islands formed around these generating stations by connecting essential loads. These islands are then interconnected at predefined locations where synchronizing facilities are available. The speed of restoration enhances with increase in number of black start facilities and ...
... should be started up and islands formed around these generating stations by connecting essential loads. These islands are then interconnected at predefined locations where synchronizing facilities are available. The speed of restoration enhances with increase in number of black start facilities and ...
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.