Frequency Foldback Current Mode PWM
... proportional to input voltage and a resistor divider network is used to program the proportionality constant. At a given input voltage and constant load, under closed loop control, the operating duty cycle is a fixed value. The volt-second clamp duty cycle may then be set somewhat higher than this o ...
... proportional to input voltage and a resistor divider network is used to program the proportionality constant. At a given input voltage and constant load, under closed loop control, the operating duty cycle is a fixed value. The volt-second clamp duty cycle may then be set somewhat higher than this o ...
IOSR Journal of Electrical and Electronics Engineering (IOSRJEEE)
... (Professor, EEE Department, Loyola institute of technology/ Anna University, Tamil nadu, India) (M.E Student, EEE Department, Loyola institute of technology/ Anna University, Tamil nadu, India) ...
... (Professor, EEE Department, Loyola institute of technology/ Anna University, Tamil nadu, India) (M.E Student, EEE Department, Loyola institute of technology/ Anna University, Tamil nadu, India) ...
Tech Sheet - Alberta Governor Service
... functions and features for multiple application with up to 14 generators, each with a maximum individual rating of 16MW. Whether isolated or in parallel with the utility this device was designed for generators and switchgear equipment that require independent protection. The MFR 3 digitally measures ...
... functions and features for multiple application with up to 14 generators, each with a maximum individual rating of 16MW. Whether isolated or in parallel with the utility this device was designed for generators and switchgear equipment that require independent protection. The MFR 3 digitally measures ...
Optimal Efficiency Controller of AC Drive System
... [17] Rateb Issa ,Zeid Hijazin,Electric Motors Drive, AlMujtama’ Al-Arabi Publisher,Amman,Jordan, 2007. [18] Hussein Sarhan, Rateb Issa and Mohammad Alia, Optimal Power Factor Control of Three-Phase Induction Motor Drives Using PIC-Microcontroller, International Review of Automatic Control,2012, Vol. ...
... [17] Rateb Issa ,Zeid Hijazin,Electric Motors Drive, AlMujtama’ Al-Arabi Publisher,Amman,Jordan, 2007. [18] Hussein Sarhan, Rateb Issa and Mohammad Alia, Optimal Power Factor Control of Three-Phase Induction Motor Drives Using PIC-Microcontroller, International Review of Automatic Control,2012, Vol. ...
Topic 11: Electromagnetic induction
... Topic 11: Electromagnetic induction - AHL 11.2 – Power generation and transmission The AC vs. DC argument When electricity became available for distribution to households, various arguments as to which form it should be transmitted in were put forth by Edison (DC), Westinghouse (AC), and Tesla (AC ...
... Topic 11: Electromagnetic induction - AHL 11.2 – Power generation and transmission The AC vs. DC argument When electricity became available for distribution to households, various arguments as to which form it should be transmitted in were put forth by Edison (DC), Westinghouse (AC), and Tesla (AC ...
Recent Advances In RF Integrated Circuits
... ticular, if V ~ 0 2were at 400 MHz, then, similar to the case of loop and applying the baseband data to the control line of homodyne downconversion, self-mixing would corrupt the baseband signals by DC offsets [6, 71. For this reason, V L Ois~ the oscillator. Since the VCO is not phase-locked during ...
... ticular, if V ~ 0 2were at 400 MHz, then, similar to the case of loop and applying the baseband data to the control line of homodyne downconversion, self-mixing would corrupt the baseband signals by DC offsets [6, 71. For this reason, V L Ois~ the oscillator. Since the VCO is not phase-locked during ...
DDS-9850 Manual Experimenters version.
... However a lot of current is needed, to much in my opinion, to allow a simple 5v linear voltage regulator off of a 12 v supply. So a prototyping area is near the power input area. My board plus the LCD only draw about 25mA. But the DDS-9850 modules draw between 100 and 200 mA each. So with 2 modules ...
... However a lot of current is needed, to much in my opinion, to allow a simple 5v linear voltage regulator off of a 12 v supply. So a prototyping area is near the power input area. My board plus the LCD only draw about 25mA. But the DDS-9850 modules draw between 100 and 200 mA each. So with 2 modules ...
PUB‐NLH‐186 Island Interconnected System Supply Issues and Power Outages Page 1 of 4 Q.
... o Successful single pole reclosing on line to ground faults o Unsuccessful single pole reclosing on line to ground faults o Three phase faults except a three phase fault on, or near, the Bay d’Espoir 230 kV bus with tripping of a 230 kV transmission line o Loss of the largest generator on line o ...
... o Successful single pole reclosing on line to ground faults o Unsuccessful single pole reclosing on line to ground faults o Three phase faults except a three phase fault on, or near, the Bay d’Espoir 230 kV bus with tripping of a 230 kV transmission line o Loss of the largest generator on line o ...
Lecture 2 rev2
... and transistor sizing”, Symposium on VLSI Circuits 2002, pp. 218-219. [6] A. Keshavarzi et al, “Forward body bias for microprocessors in 130nm technology generation and beyond”, ...
... and transistor sizing”, Symposium on VLSI Circuits 2002, pp. 218-219. [6] A. Keshavarzi et al, “Forward body bias for microprocessors in 130nm technology generation and beyond”, ...
EE 1322832
... leakage inductance and winding capacitance are utilized as a part of resonant tank circuit elements[1].This configuration is well suited for low output voltage giving better performance in terms of efficiency and voltage regulation.The leakage inductance of HF transformer can be used as a part of re ...
... leakage inductance and winding capacitance are utilized as a part of resonant tank circuit elements[1].This configuration is well suited for low output voltage giving better performance in terms of efficiency and voltage regulation.The leakage inductance of HF transformer can be used as a part of re ...
Aalborg Universitet Permanent Magnet Synchronous Motors
... inductance is future reduced. Similar effect of the d, q currents on the q-axis inductance may be observed from Fig. 5. When the AC excitation frequency increases, both the d-axis and q-axis inductances decrease, as shown in Fig. 6. This is mainly due to the eddy current effects which cause the chan ...
... inductance is future reduced. Similar effect of the d, q currents on the q-axis inductance may be observed from Fig. 5. When the AC excitation frequency increases, both the d-axis and q-axis inductances decrease, as shown in Fig. 6. This is mainly due to the eddy current effects which cause the chan ...
HMC-AUH317 数据资料DataSheet下载
... General Description The HMC-AUH317 is a high dynamic range, three stage GaAs HEMT MMIC Medium Power Amplifier which operates between 81 and 86 GHz. The HMCAUH317 provides 22 dB of gain, and an output power of +17.5 dBm at 1 dB compression from a +4V supply voltage. All bond pads and the die backside ...
... General Description The HMC-AUH317 is a high dynamic range, three stage GaAs HEMT MMIC Medium Power Amplifier which operates between 81 and 86 GHz. The HMCAUH317 provides 22 dB of gain, and an output power of +17.5 dBm at 1 dB compression from a +4V supply voltage. All bond pads and the die backside ...
Aalborg Universitet FACTS Devices for Large Wind Power Plants Nath
... Integration of wind energy into power systems on such a large scale is not straightforward. Power system and its operation, was designed and developed around conventional power plants (CPP) with synchronous generators directly coupled to the grid. Wind power plants (WPP) have different characteristi ...
... Integration of wind energy into power systems on such a large scale is not straightforward. Power system and its operation, was designed and developed around conventional power plants (CPP) with synchronous generators directly coupled to the grid. Wind power plants (WPP) have different characteristi ...
Nov 2000 Infinite Sample-and-Hold Outperforms Many Legacy Sample-and-Hold Amplifiers
... Many applications requiring sample-and-hold amplifiers have been left high and dry by the dearth of these devices in today’s catalogs. The use of an ADC followed by a DAC can provide this function, as well as producing characteristics not possible with a conventional sample-and-hold. The circuit sho ...
... Many applications requiring sample-and-hold amplifiers have been left high and dry by the dearth of these devices in today’s catalogs. The use of an ADC followed by a DAC can provide this function, as well as producing characteristics not possible with a conventional sample-and-hold. The circuit sho ...
Utility frequency
The utility frequency, (power) line frequency (American English) or mains frequency (British English) is the frequency of the oscillations of alternating current (AC) in an electric power grid transmitted from a power plant to the end-user. In large parts of the world this is 50 Hz, although in the Americas and parts of Asia it is typically 60 Hz. Current usage by country or region is given in the list of mains power around the world.During the development of commercial electric power systems in the late 19th and early 20th centuries, many different frequencies (and voltages) had been used. Large investment in equipment at one frequency made standardization a slow process. However, as of the turn of the 21st century, places that now use the 50 Hz frequency tend to use 220–240 V, and those that now use 60 Hz tend to use 100–127 V. Both frequencies coexist today (Japan uses both) with no great technical reason to prefer one over the other and no apparent desire for complete worldwide standardization.Unless specified by the manufacturer to operate on both 50 and 60 Hz, appliances may not operate efficiently or even safely if used on anything other than the intended frequency.