LECTURE 11 Introduction to Feedback I. Feedback on PWM
... Recall from op amp design and control theory, one designs the feedback loop carefully such that undesired loop oscillation does not occur at any frequency. In some server computer power supplies or system tape drives, safe reliable operation is as important as speed - ultrasafe case. Ultra-safe case ...
... Recall from op amp design and control theory, one designs the feedback loop carefully such that undesired loop oscillation does not occur at any frequency. In some server computer power supplies or system tape drives, safe reliable operation is as important as speed - ultrasafe case. Ultra-safe case ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) e-ISSN: 2278-1676,p-ISSN: 2320-3331
... popularity of distributed generation have resulted in increasing fault current levels. A dynamic voltage restorer (DVR) could generate a compensation voltage, which is inserted into the grid through a series transformer [3-5], and could help to minimize any voltage fluctuations. However, a large sho ...
... popularity of distributed generation have resulted in increasing fault current levels. A dynamic voltage restorer (DVR) could generate a compensation voltage, which is inserted into the grid through a series transformer [3-5], and could help to minimize any voltage fluctuations. However, a large sho ...
Power System Harmonic Mitigation for Water
... conjunction with single-tuned filters to target the lower frequencies. They usually include resistors, which can be an operating problem. A series broadband filter improves upon former broadband harmonic filtering techniques and broadens the range of suitable applications. This is a conventional low ...
... conjunction with single-tuned filters to target the lower frequencies. They usually include resistors, which can be an operating problem. A series broadband filter improves upon former broadband harmonic filtering techniques and broadens the range of suitable applications. This is a conventional low ...
KPT 11 KD KPT 31 KD - Schleicher Electronic
... 1 function: KPT 11 KD: repeat cycle starting with OFF (TP) KPT 31 KD: repeat cycle starting with ON (TI) Setting range from 0.05 s to 10 h divided into 10 time ranges 1 change-over contact 2 LEDs for function display ...
... 1 function: KPT 11 KD: repeat cycle starting with OFF (TP) KPT 31 KD: repeat cycle starting with ON (TI) Setting range from 0.05 s to 10 h divided into 10 time ranges 1 change-over contact 2 LEDs for function display ...
Slide 1
... When a TV panel goes beyond 32 inches, the CCFL (cold cathode fluorescent) backlighting is driven directly from the 400VDC. Another example of the demand for higher voltages and energy efficiency. The larger the panel the more voltage required and energy consumed!!! ...
... When a TV panel goes beyond 32 inches, the CCFL (cold cathode fluorescent) backlighting is driven directly from the 400VDC. Another example of the demand for higher voltages and energy efficiency. The larger the panel the more voltage required and energy consumed!!! ...
Aalborg Universitet Low Voltage Ride-Through of Single-Phase Transformerless Photovoltaic Inverters
... systems due to anti-islanding protection may contribute to grid disturbances. Thus, standards featuring with ancillary services for the next generation PV systems are under a revision in some countries. The future PV systems have to provide a full range of services as what the conventional power pla ...
... systems due to anti-islanding protection may contribute to grid disturbances. Thus, standards featuring with ancillary services for the next generation PV systems are under a revision in some countries. The future PV systems have to provide a full range of services as what the conventional power pla ...
Aalborg Universitet
... reactive power. In addition, compensation of power quality problems, such as voltage unbalance, can be achieved through proper control strategies. In [2]-[8], some approaches are presented to apply the DG for power quality compensation purposes. The control method presented in [2] and [3] is based o ...
... reactive power. In addition, compensation of power quality problems, such as voltage unbalance, can be achieved through proper control strategies. In [2]-[8], some approaches are presented to apply the DG for power quality compensation purposes. The control method presented in [2] and [3] is based o ...
How to Select the Frequency Foldback Product Option When
... 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−Marking.pdf. SCILLC reserves the right to make changes without further notice to any ...
... 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−Marking.pdf. SCILLC reserves the right to make changes without further notice to any ...
Spectral analysis of a new six-phase pole
... can readily be deduced from (10). In the case 4P1, there are no phase differences between the two references and between the two carriers, the phase voltage is identical to the phase voltage. In the case 4P2, due to the phase differences of 180 between the two carriers, the second term of becomes ou ...
... can readily be deduced from (10). In the case 4P1, there are no phase differences between the two references and between the two carriers, the phase voltage is identical to the phase voltage. In the case 4P2, due to the phase differences of 180 between the two carriers, the second term of becomes ou ...
Novel Circuit Breaker Modeling in 275kV Substation Hamid Radmanesh Razieh Salimi Atani
... In this case, the system which was considered for simulation is shown in Fig.2.The value of impedance required for neutral earth connection is easily calculated to a reasonable approximation by dividing the rated phase voltage by the rated phase current of the transformer. Neutral earth impedance is ...
... In this case, the system which was considered for simulation is shown in Fig.2.The value of impedance required for neutral earth connection is easily calculated to a reasonable approximation by dividing the rated phase voltage by the rated phase current of the transformer. Neutral earth impedance is ...
to notes
... side, but substations supplying large amounts of load may have protection devices on both sides of the transformer. Special substation designs to achieve high reliability may utilize multiple circuit breakers, as shown in Fig. 1. Less expensive designs may use protection only in series with the feed ...
... side, but substations supplying large amounts of load may have protection devices on both sides of the transformer. Special substation designs to achieve high reliability may utilize multiple circuit breakers, as shown in Fig. 1. Less expensive designs may use protection only in series with the feed ...
Electro-magnetic flow meters
... with our original formulation of Faraday’s law: voltage is proportional to the rate of change of flux. Consider also how useful this integration method is in practical inductor design; if you know the number of turns on a winding and the voltage waveform on it then you integrate with regard to time ...
... with our original formulation of Faraday’s law: voltage is proportional to the rate of change of flux. Consider also how useful this integration method is in practical inductor design; if you know the number of turns on a winding and the voltage waveform on it then you integrate with regard to time ...
1-MHz, 3.3-V High-Efficiency Synchronous Buck
... orders and should verify that such information is current and complete. All products are sold subject to TI’s terms and conditions of sale supplied at the time of order acknowledgment. TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance ...
... orders and should verify that such information is current and complete. All products are sold subject to TI’s terms and conditions of sale supplied at the time of order acknowledgment. TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance ...
RF2480
... Same as pin 3. Same as pin 3. The input of the phase shifting network. This pin has an internal DC blocking capacitor. This port is voltage driven so matching at different frequencies is not required. Power supply for all circuits except the RF output stage. An external capacitor is needed if no oth ...
... Same as pin 3. Same as pin 3. The input of the phase shifting network. This pin has an internal DC blocking capacitor. This port is voltage driven so matching at different frequencies is not required. Power supply for all circuits except the RF output stage. An external capacitor is needed if no oth ...
SPD terminology, references SPD terminology
... Environmental protective rating (IP) : the protective rating of the SPD enclosure against the environment (e.g. water, dust, etc.) Disconnector: a device, internal or external to the SPD, which is used to provide safe disconnection under fault conditions. Disconnectors may provide isolation by opera ...
... Environmental protective rating (IP) : the protective rating of the SPD enclosure against the environment (e.g. water, dust, etc.) Disconnector: a device, internal or external to the SPD, which is used to provide safe disconnection under fault conditions. Disconnectors may provide isolation by opera ...
instructions for preparation of papers
... Some studies related to PV systems connected to the grid already show the mutual interaction of PV systems and the grid. a) The impact of PV systems on the grid From a quality point of view, utility specialists’ opinion is that PV private installations do not have any impact on the grid due to the l ...
... Some studies related to PV systems connected to the grid already show the mutual interaction of PV systems and the grid. a) The impact of PV systems on the grid From a quality point of view, utility specialists’ opinion is that PV private installations do not have any impact on the grid due to the l ...
IC30 Circuit Description
... Three universal microphone/line inputs are provided. Microphone inputs are via the 3 pin XLR connectors while line inputs are via the RCA style connectors (one of each is provided per channel). All three inputs can be used for microphone and auxiliary input sources. It is also possible to connect bo ...
... Three universal microphone/line inputs are provided. Microphone inputs are via the 3 pin XLR connectors while line inputs are via the RCA style connectors (one of each is provided per channel). All three inputs can be used for microphone and auxiliary input sources. It is also possible to connect bo ...
L297 L297D
... The principal functions are a translator, which generates the motor phase sequences, and a dual PWM chopper circuit which regulates the current in the motor windings.The translator generatesthree different sequences, selected by the HALF/FULL input. These are normal (two phases energised), wave driv ...
... The principal functions are a translator, which generates the motor phase sequences, and a dual PWM chopper circuit which regulates the current in the motor windings.The translator generatesthree different sequences, selected by the HALF/FULL input. These are normal (two phases energised), wave driv ...
Power inverter
A power inverter, or inverter, is an electronic device or circuitry that changes direct current (DC) to alternating current (AC).The input voltage, output voltage and frequency, and overall power handling depend on the design of the specific device or circuitry. The inverter does not produce any power; the power is provided by the DC source.A power inverter can be entirely electronic or may be a combination of mechanical effects (such as a rotary apparatus) and electronic circuitry.Static inverters do not use moving parts in the conversion process.