Aalborg Universitet Generic inertia emulation controller for multi-terminal voltage-source-converter high
... MVA each). The WTG step-up transformers raise the 690 Volts nominal generator terminal voltage to 11kV, the offshore AC wind farm network voltage. This voltage is further raised to 150kV by the WVSC transformers before conversion to the DC network voltage of ±150kV by the WVSC converters. While the ...
... MVA each). The WTG step-up transformers raise the 690 Volts nominal generator terminal voltage to 11kV, the offshore AC wind farm network voltage. This voltage is further raised to 150kV by the WVSC transformers before conversion to the DC network voltage of ±150kV by the WVSC converters. While the ...
Design Challenges in Backlighting LCD TVs
... best suited for applications that require a very wide dc supply voltage range (Fig. 2). Almost all notebook PCs use a fullbridge approach because of the wide dc supply range. The inverter dc supply is tied directly to the notebook’s main dc power source, which can vary from 7 V—low battery—to 21 V—a ...
... best suited for applications that require a very wide dc supply voltage range (Fig. 2). Almost all notebook PCs use a fullbridge approach because of the wide dc supply range. The inverter dc supply is tied directly to the notebook’s main dc power source, which can vary from 7 V—low battery—to 21 V—a ...
Reducing Conducted Transients in Automotive Windsheild Wiper
... Hand calculations were done using the same model as used in PSPICE. The following calculation is done to find the approximate magnitude of the negative transient spike Finding the decay takes considerably more ...
... Hand calculations were done using the same model as used in PSPICE. The following calculation is done to find the approximate magnitude of the negative transient spike Finding the decay takes considerably more ...
MAX1968/MAX1969 Power Drivers for Peltier TEC Modules General Description Features
... The MAX1968/MAX1969 are highly integrated and costeffective, high-efficiency, switch-mode drivers for Peltier thermoelectric cooler (TEC) modules. Both devices utilize direct current control to eliminate current surges in the TEC. On-chip FETs minimize external components while providing high effici ...
... The MAX1968/MAX1969 are highly integrated and costeffective, high-efficiency, switch-mode drivers for Peltier thermoelectric cooler (TEC) modules. Both devices utilize direct current control to eliminate current surges in the TEC. On-chip FETs minimize external components while providing high effici ...
Inductors - La Salle University
... • We are receiving/detecting the signal. • But lots of other people are sending signals and we are receiving their signal as well. • Fortunately there is a large range of possible carrier frequencies and we can use these to distinguish one signal from another. PHY 202 (Blum) ...
... • We are receiving/detecting the signal. • But lots of other people are sending signals and we are receiving their signal as well. • Fortunately there is a large range of possible carrier frequencies and we can use these to distinguish one signal from another. PHY 202 (Blum) ...
Oscillator
... If we measure the phase-shift per RC section, each section would not provide the same phase shift (although the overall phase shift is 180o). In order to obtain exactly 60o phase shift for each of three stages, emitter follower stages would be needed for each RC section. The gain must be at leas ...
... If we measure the phase-shift per RC section, each section would not provide the same phase shift (although the overall phase shift is 180o). In order to obtain exactly 60o phase shift for each of three stages, emitter follower stages would be needed for each RC section. The gain must be at leas ...
section 262923 - variable-frequency motor
... Starting Torque: Minimum 100 percent of rated torque from 3 to 60 Hz. Speed Regulation: Plus or minus [5] [10] percent. Output Carrier Frequency: Selectable; 0.5 to [15] kHz.
Stop Modes: Programmable; includes fast, free-wheel, and dc injection braking.
...
... Starting Torque: Minimum 100 percent of rated torque from 3 to 60 Hz. Speed Regulation: Plus or minus [5] [10] percent. Output Carrier Frequency: Selectable; 0.5 to [15]
ECE 301 – Digital Electronics
... Furthermore, voltage ranges, for logic 1 and logic 0, are specified for both the input and the output of a logic gate. They are defined in terms of four parameters ...
... Furthermore, voltage ranges, for logic 1 and logic 0, are specified for both the input and the output of a logic gate. They are defined in terms of four parameters ...
Comparative Study of Soft Switching and Hard Switching For
... another possibility to reduce losses in power electronic switches. Actually, the operation of power electronic switches in ZVS-mode (zero-voltage-switch) or ZCS-mode (zero-current-switch) is called “soft switching“ Soft commutation techniques have been of great interest within the last few years in ...
... another possibility to reduce losses in power electronic switches. Actually, the operation of power electronic switches in ZVS-mode (zero-voltage-switch) or ZCS-mode (zero-current-switch) is called “soft switching“ Soft commutation techniques have been of great interest within the last few years in ...
wire and cable terminology
... Decibel (dB): A unit to express differences of power level. A term that expresses two power levels used to indicate gains or losses in a system. Derating Factor: A factor used to reduce the current carrying capacity of a wire when used in environments other than that for which the value was es ...
... Decibel (dB): A unit to express differences of power level. A term that expresses two power levels used to indicate gains or losses in a system. Derating Factor: A factor used to reduce the current carrying capacity of a wire when used in environments other than that for which the value was es ...
... are given in [15]. Performance of various magnetic core models in comparison with the laboratory test results of a ferroresonance test on a 33 kV voltage transformer investigated in [16]. Mitigating ferroresonance in voltage transformers in ungrounded MV networks has been reported in [17]. An approa ...
- Bangladesh Amateur Radio League
... a. Very high fidelity voice modulation b. Less bandwidth used and high power efficiency** c. Ease of tuning on receive d. Less subject to static crashes (atmospherics) 49. Which of the following statements is true of single sideband (SSB) voice mode? a. It is a form of amplitude modulation in which ...
... a. Very high fidelity voice modulation b. Less bandwidth used and high power efficiency** c. Ease of tuning on receive d. Less subject to static crashes (atmospherics) 49. Which of the following statements is true of single sideband (SSB) voice mode? a. It is a form of amplitude modulation in which ...
Non-Intercepting Monitor of Beam Current and Position
... Hy per cm, and that the decay is not simply expon&tial, For a 0.1 R Rs, the decay is shown In Fig. 6, and is sufficiently slow to be used with our < 45 ns beams, If the Ld/Rs ratio is not high, the difference current might have a waveshape as shown in Fig. 2C, Second, if there is an external ground ...
... Hy per cm, and that the decay is not simply expon&tial, For a 0.1 R Rs, the decay is shown In Fig. 6, and is sufficiently slow to be used with our < 45 ns beams, If the Ld/Rs ratio is not high, the difference current might have a waveshape as shown in Fig. 2C, Second, if there is an external ground ...
Organic electrochemical transistors for signal amplification in fast scan cyclic voltammetry
... The detection and quantification of neurochemical species in vitro and in vivo is of great importance within neuroscience. Such measurements have made a large contribution to our understanding of the signaling cascades of the brain and its associated diseases.[1] Further, real time measurements of n ...
... The detection and quantification of neurochemical species in vitro and in vivo is of great importance within neuroscience. Such measurements have made a large contribution to our understanding of the signaling cascades of the brain and its associated diseases.[1] Further, real time measurements of n ...
Introduction to RT1650 Wireless Power Receiver
... Although WPC1.1 is based on magnetic induction, both transmitter and receiver make use of series LC circuits tuned to the same 100kHz frequency, but the operation frequency lies above the series resonance. This is not the same as magnetic resonance operation where the operation frequency is equal to ...
... Although WPC1.1 is based on magnetic induction, both transmitter and receiver make use of series LC circuits tuned to the same 100kHz frequency, but the operation frequency lies above the series resonance. This is not the same as magnetic resonance operation where the operation frequency is equal to ...
UCC29950 CCM PFC and LLC Combo Controller
... switching if this pin is driven above VFB_LLC(off) (typically 3.75 V) and resume operation when it falls below VFB(max) (typically 3.0 V). If this pin is held below VFB(min) (typically 200 mV) the GD1 and GD2 outputs runs at their minimum frequency. 5.1.9 PFC_GD PFC_GD is the gate-driver output for ...
... switching if this pin is driven above VFB_LLC(off) (typically 3.75 V) and resume operation when it falls below VFB(max) (typically 3.0 V). If this pin is held below VFB(min) (typically 200 mV) the GD1 and GD2 outputs runs at their minimum frequency. 5.1.9 PFC_GD PFC_GD is the gate-driver output for ...
Opto-isolator
In electronics, an opto-isolator, also called an optocoupler, photocoupler, or optical isolator, is a component that transfers electrical signals between two isolated circuits by using light. Opto-isolators prevent high voltages from affecting the system receiving the signal. Commercially available opto-isolators withstand input-to-output voltages up to 10 kV and voltage transients with speeds up to 10 kV/μs.A common type of opto-isolator consists of an LED and a phototransistor in the same opaque package. Other types of source-sensor combinations include LED-photodiode, LED-LASCR, and lamp-photoresistor pairs. Usually opto-isolators transfer digital (on-off) signals, but some techniques allow them to be used with analog signals.