Aalborg Universitet Rannestad, Bjørn; Thøgersen, Paul
... Fig. 10: Prototype board test measurement: (top) input Vce voltage, (middle) ambient temperature and (bottom) error voltage = Vce – Vout. The measurement circuit has been designed to achieve accuracy around 1mV. A ±5V 14-bit ADC with resolution of 0.61mV has been chosen. Analog circuitry has been d ...
... Fig. 10: Prototype board test measurement: (top) input Vce voltage, (middle) ambient temperature and (bottom) error voltage = Vce – Vout. The measurement circuit has been designed to achieve accuracy around 1mV. A ±5V 14-bit ADC with resolution of 0.61mV has been chosen. Analog circuitry has been d ...
A very high performance self-biased cascode current mirror for
... High compliance range is useful for accurate operation of CM with low power supply voltages. The accuracy of low voltage analog circuits will be enhanced when designed using these CMs. Let, VDSðminÞ ¼ VGS VT ¼ VON ðsayÞ ...
... High compliance range is useful for accurate operation of CM with low power supply voltages. The accuracy of low voltage analog circuits will be enhanced when designed using these CMs. Let, VDSðminÞ ¼ VGS VT ¼ VON ðsayÞ ...
Ion Pumps - at Hositrad
... discharge changes mode into a more diffuse form, the argon gets slowly pumped into other areas of the pump and the pressure slowly falls over a few minutes. At a certain point, the discharge shifts back into the confined Penning mode, and the pressure falls rapidly to the base pressure of the system ...
... discharge changes mode into a more diffuse form, the argon gets slowly pumped into other areas of the pump and the pressure slowly falls over a few minutes. At a certain point, the discharge shifts back into the confined Penning mode, and the pressure falls rapidly to the base pressure of the system ...
3.3V 5V ±12V housekeeping IC
... A capacitor from this pin to Gnd will delay the Fault signal when the Rem pin is used to shut down the power supply. The PG will signal a power failure warming immediately, but the Fault pin shut down of the power will be delayed. A capacitor from this pin to Gnd will provide the under voltage blank ...
... A capacitor from this pin to Gnd will delay the Fault signal when the Rem pin is used to shut down the power supply. The PG will signal a power failure warming immediately, but the Fault pin shut down of the power will be delayed. A capacitor from this pin to Gnd will provide the under voltage blank ...
Critical Points of Simplified Model for Ferroresonance Phenomenon in Single Phase Power Transformers
... The calculated results dictate a jump up in primary induced voltage V2 from 80.19V to 128.73V due to ferroresonance at supply voltage V1 of 42.59 V. The calculated results dictate a jump down in primary induced voltage V2 from 115.1V to 44.86V due to ferroresonance at supply voltage V1 of 30.42 ...
... The calculated results dictate a jump up in primary induced voltage V2 from 80.19V to 128.73V due to ferroresonance at supply voltage V1 of 42.59 V. The calculated results dictate a jump down in primary induced voltage V2 from 115.1V to 44.86V due to ferroresonance at supply voltage V1 of 30.42 ...
GaN Essentials - Richardson RFPD
... with RDSON as high as 500 milliohms in a SOT223-4 package. Larger 8mm and 16mm devices should use MOSFETs which keep RDSON below about 150 milliohms and be housed in a DPAK or similar package with sufficient heat sinking. Even larger 36mm devices require switches with sub-80 milliohm RDSON and packa ...
... with RDSON as high as 500 milliohms in a SOT223-4 package. Larger 8mm and 16mm devices should use MOSFETs which keep RDSON below about 150 milliohms and be housed in a DPAK or similar package with sufficient heat sinking. Even larger 36mm devices require switches with sub-80 milliohm RDSON and packa ...
linear regulators
... inductor is required. 2. Low noise/low ripple applications. For noise-sensitive applications, such as communication and radio devices, minimizing the supply noise is very critical. 3. Fast transient applications. The linear regulator feedback loop is usually internal, so no external compensation is ...
... inductor is required. 2. Low noise/low ripple applications. For noise-sensitive applications, such as communication and radio devices, minimizing the supply noise is very critical. 3. Fast transient applications. The linear regulator feedback loop is usually internal, so no external compensation is ...
LM392 - Texas Instruments
... Due to proximity of external components, insure that coupling is not originating via the stray capacitance between these external parts. This typically can be detected as this type of capacitive coupling increases at higher frequencies. Positive excursions of input voltage may exceed the power suppl ...
... Due to proximity of external components, insure that coupling is not originating via the stray capacitance between these external parts. This typically can be detected as this type of capacitive coupling increases at higher frequencies. Positive excursions of input voltage may exceed the power suppl ...
bi-dirctional three-level front- end converter for
... IGBT based two-level converters as active front-end converter are very popular due to their bi-directional power flow capability, which is required by many industrial applications like grid integration of renewables, various motor drive applications, micro grid, uninterruptable power supply (UPS) et ...
... IGBT based two-level converters as active front-end converter are very popular due to their bi-directional power flow capability, which is required by many industrial applications like grid integration of renewables, various motor drive applications, micro grid, uninterruptable power supply (UPS) et ...
TS1107, TS1110 - uri=media.digikey
... 2.7.4 Circuit Efficiency and Power Dissipation IR loses in RSENSE can be large especially at high load currents. It is important to select the smallest, usable RSENSE value to minimize power dissipation and to keep the physical size of RSENSE small. If the external RSENSE is allowed to dissipate sig ...
... 2.7.4 Circuit Efficiency and Power Dissipation IR loses in RSENSE can be large especially at high load currents. It is important to select the smallest, usable RSENSE value to minimize power dissipation and to keep the physical size of RSENSE small. If the external RSENSE is allowed to dissipate sig ...
Electromagnetic Pulse Generator
... Any design will require constraints. For the sake of a research project for school, I have limited the effective range of my pulse generator to two feet to ensure I will not destroy any lab equipment in the process. Another limitation was that I have chosen a maximum voltage of 1000 volts for safety ...
... Any design will require constraints. For the sake of a research project for school, I have limited the effective range of my pulse generator to two feet to ensure I will not destroy any lab equipment in the process. Another limitation was that I have chosen a maximum voltage of 1000 volts for safety ...
ESAD_SVT - Jefferson Lab
... into 4 cylindrical coaxial regions. In order to operate the SVT, high voltage and low voltage are supplied to each module. All power supplies are rated as class 1. The high voltage for the module is 85 V (10 A). The required low voltage is 3.5 V (2 A) for the readout electronics. High voltage PS (3 ...
... into 4 cylindrical coaxial regions. In order to operate the SVT, high voltage and low voltage are supplied to each module. All power supplies are rated as class 1. The high voltage for the module is 85 V (10 A). The required low voltage is 3.5 V (2 A) for the readout electronics. High voltage PS (3 ...
White LED Power Supply Design Techniques
... gain of 1.0 and 1.5 shows far better results. The remaining problem with such a charge pump is the switchover point from a gain M=1.0 to M=1.5 because the efficiency will drop down to the 60% range. The overall efficiency is reduced w hen the efficiency drop (switchover) occurs at a point where the ...
... gain of 1.0 and 1.5 shows far better results. The remaining problem with such a charge pump is the switchover point from a gain M=1.0 to M=1.5 because the efficiency will drop down to the 60% range. The overall efficiency is reduced w hen the efficiency drop (switchover) occurs at a point where the ...
2.4.3 Capacitive Smoothing Word Document | GCE AS/A
... has a higher ripple value for the same smoothing capacitor and load resistor as only the positive half cycle is used. Full-wave rectification provides a lower ripple voltage as both positive and negative half cycles of the a.c. wave are used; ii. the value of the smoothing capacitor – the higher the ...
... has a higher ripple value for the same smoothing capacitor and load resistor as only the positive half cycle is used. Full-wave rectification provides a lower ripple voltage as both positive and negative half cycles of the a.c. wave are used; ii. the value of the smoothing capacitor – the higher the ...
inductive high voltage pulse generator based on resonance system
... A high voltage pulse generator based on inductive intermediate energy storage has been constructed. The current switching technique used in the generator is based on a resonance system. Opening switches for high currents are generally difficult to construct and the switch used here has proven to tur ...
... A high voltage pulse generator based on inductive intermediate energy storage has been constructed. The current switching technique used in the generator is based on a resonance system. Opening switches for high currents are generally difficult to construct and the switch used here has proven to tur ...
The Experiences of a (Relatively) Young Ham with Vintage Radios
... the oscillator. It was the wrong color code according to the schematic, 4700 ohms in place of 680. That would not show up as a resistance change because the parallel RF choke is a near short circuit at DC. But that parallel resistor passes RF, which the choke does not. We checked the manual for any ...
... the oscillator. It was the wrong color code according to the schematic, 4700 ohms in place of 680. That would not show up as a resistance change because the parallel RF choke is a near short circuit at DC. But that parallel resistor passes RF, which the choke does not. We checked the manual for any ...
Design Optimization of Bulk Capacitor
... Bulk Capacitor – Definition / Function Definition Bulk Capacitor is combination of capacitors which have different design purpose. It is called as DC Link, since basic function is filtering of DC flow. Y-Capacitor, X Capacitor and bus bars are located inside Power Inverter under certain Purpose. ...
... Bulk Capacitor – Definition / Function Definition Bulk Capacitor is combination of capacitors which have different design purpose. It is called as DC Link, since basic function is filtering of DC flow. Y-Capacitor, X Capacitor and bus bars are located inside Power Inverter under certain Purpose. ...
File u208b | allcomponents.ru
... determined by the value of C2 (the value of C2 and hence the pulse width can be evaluated by assuming 8 ms/nF). The current sensor on Pin 8 ensures that, for operation with inductive loads, no pulse will be generated in a new half cycle as long as the current from the previous half cycle is still fl ...
... determined by the value of C2 (the value of C2 and hence the pulse width can be evaluated by assuming 8 ms/nF). The current sensor on Pin 8 ensures that, for operation with inductive loads, no pulse will be generated in a new half cycle as long as the current from the previous half cycle is still fl ...
capacitors
... - the oldest ceramics (1930): were based on oxides of titan and manganum (εr ~ 10 - 100, TCC from -750 to +100x10-6 /°C). - titan based ceramics: BaTiO3, CaTiO3, SrTiO3, MgTiO3) have εr in range 1000 – 20000 but they are ferroelectric – exhibit Curie’s temperature, dielectric hysteresis and they are ...
... - the oldest ceramics (1930): were based on oxides of titan and manganum (εr ~ 10 - 100, TCC from -750 to +100x10-6 /°C). - titan based ceramics: BaTiO3, CaTiO3, SrTiO3, MgTiO3) have εr in range 1000 – 20000 but they are ferroelectric – exhibit Curie’s temperature, dielectric hysteresis and they are ...
Microgrids operation and control
... Synchronous generators control • Effect of varying field excitation in synchronous generators: • When loaded there are two sources of excitation: • ac current in armature (stator) • dc current in field winding (rotor) • If the field current is enough to generate the necessary mmf, then no magnetizi ...
... Synchronous generators control • Effect of varying field excitation in synchronous generators: • When loaded there are two sources of excitation: • ac current in armature (stator) • dc current in field winding (rotor) • If the field current is enough to generate the necessary mmf, then no magnetizi ...
2.3resonance damping by the AHR
... capaciotor and line inductance will cause over current/voltage and endanger the safety of power capacitor. This paper focus on the active resonance damping for power capacitor in distribution grid. With a specific current-controlled method, the AHR (active harmonic resistor) perform as positive resi ...
... capaciotor and line inductance will cause over current/voltage and endanger the safety of power capacitor. This paper focus on the active resonance damping for power capacitor in distribution grid. With a specific current-controlled method, the AHR (active harmonic resistor) perform as positive resi ...
Triode
A triode is an electronic amplifying vacuum tube (or valve in British English) consisting of three electrodes inside an evacuated glass envelope: a heated filament or cathode, a grid, and a plate (anode). Invented in 1906 by Lee De Forest by adding a grid to the Fleming valve, the triode was the first electronic amplification device and the ancestor of other types of vacuum tubes such as the tetrode and pentode. Its invention founded the electronics age, making possible amplified radio technology and long-distance telephony. Triodes were widely used in consumer electronics devices such as radios and televisions until the 1970s, when transistors replaced them. Today, their main remaining use is in high-power RF amplifiers in radio transmitters and industrial RF heating devices. The word is derived from the Greek τρίοδος, tríodos, from tri- (three) and hodós (road, way), originally meaning the place where three roads meet.