File - Department of Electrical Engineering
... Describe Ratings, protection, Cooling, Commutation techniques, firing circuits, Series and Parallel operation of Thyristors. Describe applications of thyristors as static switches, voltage controllers, Converters, Inverters, Choppers and Cyclo converters. Understand how to start and control speed of ...
... Describe Ratings, protection, Cooling, Commutation techniques, firing circuits, Series and Parallel operation of Thyristors. Describe applications of thyristors as static switches, voltage controllers, Converters, Inverters, Choppers and Cyclo converters. Understand how to start and control speed of ...
PRESETTABLE UP/DOWN COUNTER BINARY OR BCD DECADE
... DOWN, PRESET ENABLE, and four individual JAM signals. Q1, Q2, Q3, Q4 and a CARRY OUT signal are provided as outputs. A high PRESET ENABLE signal allows information on the JAM INPUTS to preset the counter to any state asynchronously with the clock. A low on each JAM line, when the PRESET-ENABLE signa ...
... DOWN, PRESET ENABLE, and four individual JAM signals. Q1, Q2, Q3, Q4 and a CARRY OUT signal are provided as outputs. A high PRESET ENABLE signal allows information on the JAM INPUTS to preset the counter to any state asynchronously with the clock. A low on each JAM line, when the PRESET-ENABLE signa ...
Digital Transmission
... (like the one in the feedback loop) whose output rises or falls with each 1 or 0 received. The integrator itself constitutes a low-pass filter. ...
... (like the one in the feedback loop) whose output rises or falls with each 1 or 0 received. The integrator itself constitutes a low-pass filter. ...
Specification Sheet
... The AC input shall be a two-wire, universal voltage capable 120 thru 277 VAC, 50/60 Hz and be UL Classified to Category Control Number (CCN) FTBR, Emergency Lighting and Power Equipment, and FTBV, Emergency Light-Emitting-Diode Drivers for field installation. Maximum input power of the emergency dri ...
... The AC input shall be a two-wire, universal voltage capable 120 thru 277 VAC, 50/60 Hz and be UL Classified to Category Control Number (CCN) FTBR, Emergency Lighting and Power Equipment, and FTBV, Emergency Light-Emitting-Diode Drivers for field installation. Maximum input power of the emergency dri ...
Aalborg Universitet Model Predictive Current Control for High-Power Grid-Connected Converters with
... DC-link voltage control loop. A reactive power distortion can be observed in fig. 7(b) during the period the active power is changing. This distortion is due to the change in the LCL filter reactive power consumption under different operating points. In time t = 10 s, a change on reactive power dema ...
... DC-link voltage control loop. A reactive power distortion can be observed in fig. 7(b) during the period the active power is changing. This distortion is due to the change in the LCL filter reactive power consumption under different operating points. In time t = 10 s, a change on reactive power dema ...
Low power quad voltage comparator
... more than 0.3V. The upper end of the common-mode voltage range is VCC+ –1.5V, but either or both inputs can go to +30V without damage. 4. The response time specified is for a 100mV input step with 5mV overdrive. 5. Positive excursions of input voltage may exceed the power supply level. As long as th ...
... more than 0.3V. The upper end of the common-mode voltage range is VCC+ –1.5V, but either or both inputs can go to +30V without damage. 4. The response time specified is for a 100mV input step with 5mV overdrive. 5. Positive excursions of input voltage may exceed the power supply level. As long as th ...
CR26645650
... The test results of the prototype are shown in Fig. 10. The source current sensor displays the results in phase A with the measuring units of voltage source (v s ) , load current (iL ) , compensated current (ic ) , and source current (is ) . The performance of the active power filter is measured by ...
... The test results of the prototype are shown in Fig. 10. The source current sensor displays the results in phase A with the measuring units of voltage source (v s ) , load current (iL ) , compensated current (ic ) , and source current (is ) . The performance of the active power filter is measured by ...
Read More
... messy and cumbersome ancillary components, and nonintuitive interfaces that require the precise adjustment of imprecise controls, such as mechanical pressure regulators and variacs. Also, with more immediate concerns in the realm of defense, a pulsed-power system must become rugged, compact, reliabl ...
... messy and cumbersome ancillary components, and nonintuitive interfaces that require the precise adjustment of imprecise controls, such as mechanical pressure regulators and variacs. Also, with more immediate concerns in the realm of defense, a pulsed-power system must become rugged, compact, reliabl ...
cmos differential amplifier
... What if input CM level changes? Bias currents of M1 and M2 changes -> vary gm of devices (hence the gain) -> vary output CM level (lowers maximum allowable output swings) Example: If input CM is excessively low (b): Min values of Vin1 and Vin2 may turn off M1 and M2 • Lead to severe clipping ...
... What if input CM level changes? Bias currents of M1 and M2 changes -> vary gm of devices (hence the gain) -> vary output CM level (lowers maximum allowable output swings) Example: If input CM is excessively low (b): Min values of Vin1 and Vin2 may turn off M1 and M2 • Lead to severe clipping ...
Project Statement - ECE Senior Design
... circuit that will improve the power factor input for a VFD Lenze will provide for us. By studying various topologies for power factor correction, we would be able to determine which is appropriate for our project. Research papers and textbooks are resources available to us. There are numerous resear ...
... circuit that will improve the power factor input for a VFD Lenze will provide for us. By studying various topologies for power factor correction, we would be able to determine which is appropriate for our project. Research papers and textbooks are resources available to us. There are numerous resear ...
Ensuring Power integrity
... Rule1: Reduce noise from clock or PWM signals by using Spread Spectrum Frequency Modulation (SSFM) Principle: Unmodulated clock (carrier) ...
... Rule1: Reduce noise from clock or PWM signals by using Spread Spectrum Frequency Modulation (SSFM) Principle: Unmodulated clock (carrier) ...
General-Purpose Technology for a General
... a brief stimulus pulse is determined by its integrated charge, regardless of waveform. This is the same parameter that determines the electrochemical safety of the stimulation. If stimulus charge can be controlled directly, it is possible simultaneously to optimize both power efficiency and safety. ...
... a brief stimulus pulse is determined by its integrated charge, regardless of waveform. This is the same parameter that determines the electrochemical safety of the stimulation. If stimulus charge can be controlled directly, it is possible simultaneously to optimize both power efficiency and safety. ...
AIC3412
... The AIC3412 is a synchronous step-up DC/DC converter. That is base on constant Off Time/PSM controller topology. The IC enters PSM mode automatically at light load, the goal is to improve efficiency and reduce quiescent current. The AIC3412 provide a complete power supply solution for products power ...
... The AIC3412 is a synchronous step-up DC/DC converter. That is base on constant Off Time/PSM controller topology. The IC enters PSM mode automatically at light load, the goal is to improve efficiency and reduce quiescent current. The AIC3412 provide a complete power supply solution for products power ...
see note 1
... 2. The minimum anode takeover voltage is the applied anode voltage below which the HX3002 may fail to start to conduct when triggered with the minimum specified trigger pulse. Also, in order for the initial plasma discharge to transfer to a copper arc for full conduction, the circuit must provide mo ...
... 2. The minimum anode takeover voltage is the applied anode voltage below which the HX3002 may fail to start to conduct when triggered with the minimum specified trigger pulse. Also, in order for the initial plasma discharge to transfer to a copper arc for full conduction, the circuit must provide mo ...
DC Motors - Anne Arundel Community College
... rated at 600 V and supplies one of two possible loads. Load 1: P = 120 kW, FP = 1 Load 2: P = 120 kW, FP = 0.6 How much current (I) is the generator required to supply in each case? I ...
... rated at 600 V and supplies one of two possible loads. Load 1: P = 120 kW, FP = 1 Load 2: P = 120 kW, FP = 0.6 How much current (I) is the generator required to supply in each case? I ...
open switch fault diagnosis in three phase inverter using
... Bipolar Transistors (IGBTs) which can be on or off Sinusoidal pulse width modulation (SPWM) is a common technique for controlling the switches. The average value of voltage fed to the load is controlled by turning the switch between supply and load on and off at a high frequency. ...
... Bipolar Transistors (IGBTs) which can be on or off Sinusoidal pulse width modulation (SPWM) is a common technique for controlling the switches. The average value of voltage fed to the load is controlled by turning the switch between supply and load on and off at a high frequency. ...
SC4524C - Semtech
... Figure 4 — Variation of Minimum On Time with Ambient Temperature Minimum Off Time Limitation The PWM latch in Figure 2 is reset every cycle by the clock. The clock also turns off the power transistor to refresh the bootstrap capacitor. This minimum off time limits the attainable duty cycle of the re ...
... Figure 4 — Variation of Minimum On Time with Ambient Temperature Minimum Off Time Limitation The PWM latch in Figure 2 is reset every cycle by the clock. The clock also turns off the power transistor to refresh the bootstrap capacitor. This minimum off time limits the attainable duty cycle of the re ...
fast pulser for high-altitude ignition research
... outside of the core. Note, however, that the stray inductance becomes increasingly important as the discharge time becomes faster. The design of a magnetic pulse compression system also depends on the losses; these are particularly significant for the low pulse energy in this design. C. Magnetic Pul ...
... outside of the core. Note, however, that the stray inductance becomes increasingly important as the discharge time becomes faster. The design of a magnetic pulse compression system also depends on the losses; these are particularly significant for the low pulse energy in this design. C. Magnetic Pul ...
QC2326552659
... do not improve the power factor and reduce the THD as much as their conventional two-stage counterpart. The power factor could be as low as 0.8, however, they still meet the regulation. The single-stage scheme is especially attractive in low cost and low power applications due to its simplified powe ...
... do not improve the power factor and reduce the THD as much as their conventional two-stage counterpart. The power factor could be as low as 0.8, however, they still meet the regulation. The single-stage scheme is especially attractive in low cost and low power applications due to its simplified powe ...
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.