The Short-Time-Scale Transient Processes in High-Voltage and High-Power Isolated Bidirectional DC–DC Converters
... Phase-shift error, or more generally, the error of pulse time sequence, is another important issue in the closed-loop system control, i.e., the real pulse applied to the devices may have a large deviation from the intended one, and therefore, cause the current to oscillate [18]. In traditional unidi ...
... Phase-shift error, or more generally, the error of pulse time sequence, is another important issue in the closed-loop system control, i.e., the real pulse applied to the devices may have a large deviation from the intended one, and therefore, cause the current to oscillate [18]. In traditional unidi ...
Model 12701 PEAK VOLTAGE CALIBRATOR OPERATING MANUAL
... Breaking Voltage is the potential below which a spark between an electrode and a metal object can no longer be sustained. Many factors contribute to the spark ceasing to jump across the gap. When the Peak Voltage Calibrator is used, the gap between electrodes can be increased by as much as 0.25 in. ...
... Breaking Voltage is the potential below which a spark between an electrode and a metal object can no longer be sustained. Many factors contribute to the spark ceasing to jump across the gap. When the Peak Voltage Calibrator is used, the gap between electrodes can be increased by as much as 0.25 in. ...
VRDC-Hz - Atkinson Electronics Inc
... frequency applications. The VRDC-Hz can be used in applications where a varying frequency is used to switch an adjustable relay such as in generator control or a frequency Hydro Power Plant load disconnect. The “cut-in” frequency, “cut-out” frequency, and the time delay value are adjusted on multi-t ...
... frequency applications. The VRDC-Hz can be used in applications where a varying frequency is used to switch an adjustable relay such as in generator control or a frequency Hydro Power Plant load disconnect. The “cut-in” frequency, “cut-out” frequency, and the time delay value are adjusted on multi-t ...
FMS6364A Four-Channel Standard
... TVs, and DVD players are at +70ºC; consideration must be given to providing an adequate heat sink for the device package for maximum heat dissipation. When designing a system board, determine how much power each device dissipates. Ensure that devices of high power are not placed in the same location ...
... TVs, and DVD players are at +70ºC; consideration must be given to providing an adequate heat sink for the device package for maximum heat dissipation. When designing a system board, determine how much power each device dissipates. Ensure that devices of high power are not placed in the same location ...
Presentation title here
... – High ESR (Effective Series Resistance) – High ESL – (Effective Series Inductance). ...
... – High ESR (Effective Series Resistance) – High ESL – (Effective Series Inductance). ...
CH7022 CH7022 SDTV/EDTV/HDTV Encoder
... The CH7022 is a Display Controller device which accepts a digital graphics high speed AC coupled serial differential RGB input signal, and encodes and transmits data through analog SDTV ports (analog composite, s-video, VGA or YPrPb) or an analog EDTV/HDTV port (YPrPb). The device is able to encode ...
... The CH7022 is a Display Controller device which accepts a digital graphics high speed AC coupled serial differential RGB input signal, and encodes and transmits data through analog SDTV ports (analog composite, s-video, VGA or YPrPb) or an analog EDTV/HDTV port (YPrPb). The device is able to encode ...
Man-1128
... connected to one power input of the control and indicating equipment and the connections OUT2 + and OUT2- should be connected to the other power input of the fire alarm control and indicating equipment. Only fire alarm control and indicating equipment with two separated 24V DC inputs is compatible w ...
... connected to one power input of the control and indicating equipment and the connections OUT2 + and OUT2- should be connected to the other power input of the fire alarm control and indicating equipment. Only fire alarm control and indicating equipment with two separated 24V DC inputs is compatible w ...
reading
... Vout = VEB3 + I*L*R = VEB3 + (kT/q)*Lln(K) Vout/T = VEB3/T + (k/q)*Lln(K) At room temperature, VEB3/T = ─2.2 mV/oC, k/q = +0.085 mV/oC. ...
... Vout = VEB3 + I*L*R = VEB3 + (kT/q)*Lln(K) Vout/T = VEB3/T + (k/q)*Lln(K) At room temperature, VEB3/T = ─2.2 mV/oC, k/q = +0.085 mV/oC. ...
Aalborg Universitet Flywheel Energy Storage System
... voltage charging stages. Since current and voltage only have relationship with battery, this system does not need any feedback signals from FCS. Additionally, a low bandwidth controller is commonly derived since it is not critical to control with a rapid response for EV charging process. Taking into ...
... voltage charging stages. Since current and voltage only have relationship with battery, this system does not need any feedback signals from FCS. Additionally, a low bandwidth controller is commonly derived since it is not critical to control with a rapid response for EV charging process. Taking into ...
BD9207FPS : LED / LCD Drivers
... connection with shortest pattern drawing, and the pattern shouldn’t interfere the electric characteristic. ...
... connection with shortest pattern drawing, and the pattern shouldn’t interfere the electric characteristic. ...
UCx846/7 Current Mode PWM Controller (Rev. C)
... The UCx846/7 family of control devices provides the necessary features to implement off-line or DC-to-DC fixedfrequency, current-mode control schemes with a minimal external parts count. Internally implemented circuits include under-voltage lockout featuring start-up current less than 1 mA, a precis ...
... The UCx846/7 family of control devices provides the necessary features to implement off-line or DC-to-DC fixedfrequency, current-mode control schemes with a minimal external parts count. Internally implemented circuits include under-voltage lockout featuring start-up current less than 1 mA, a precis ...
A Control Plan for the Stable Operation of Microgrids during
... units can switch from the grid-connected mode to the islanded mode and vice versa using the corresponding switches in the proposed microgrid model. In addition, LC filters are used in the active and reactive power control loops to properly adjust the magnitude and frequency of the output voltage for ...
... units can switch from the grid-connected mode to the islanded mode and vice versa using the corresponding switches in the proposed microgrid model. In addition, LC filters are used in the active and reactive power control loops to properly adjust the magnitude and frequency of the output voltage for ...
Astable - godinweb
... Duty cycle describes the ratio of the time in the high state versus the overall period of the pulse. ...
... Duty cycle describes the ratio of the time in the high state versus the overall period of the pulse. ...
as a PDF - Takeoff Projects
... topology capable of inversion (dc–ac), boosting and bucking the voltage and MPPT. The basic idea behind the proposed integrated configuration is shown in Fig. 2(a). A detailed view of Fig. 2(a) is shown in Fig. 2(b) along with an example (electrolysis) application. A combination of PV and FC sources ...
... topology capable of inversion (dc–ac), boosting and bucking the voltage and MPPT. The basic idea behind the proposed integrated configuration is shown in Fig. 2(a). A detailed view of Fig. 2(a) is shown in Fig. 2(b) along with an example (electrolysis) application. A combination of PV and FC sources ...
A Stable DC Power Supply for Photovoltaic Systems
... The DC from photovoltaic cell need to be changed to AC using inverters for AC applications or when solar power is integrated with electric grid as additional source of electricity for commercial applications like in electric utilities [7], [8]. The instantaneous levels of output DC voltage of solar ...
... The DC from photovoltaic cell need to be changed to AC using inverters for AC applications or when solar power is integrated with electric grid as additional source of electricity for commercial applications like in electric utilities [7], [8]. The instantaneous levels of output DC voltage of solar ...
Agilent 81200 Measuring Jitter with the Agilent E4874A
... While the oscilloscope uses a slow but precise A/D converter (12 or more bits) behind the input sampling gate to reconstruct the waveform, the 81200's input stage only consists of a comparator with programmable threshold voltage (a 1bit A/D converter). The result of the comparison however, can be pr ...
... While the oscilloscope uses a slow but precise A/D converter (12 or more bits) behind the input sampling gate to reconstruct the waveform, the 81200's input stage only consists of a comparator with programmable threshold voltage (a 1bit A/D converter). The result of the comparison however, can be pr ...
10V Precision Voltage Reference (Rev. B)
... without a heater. This results in low power, fast warm-up, excellent stability, and low noise. The output voltage is extremely insensitive to both line and load variations and can be externally adjusted with minimal effect on drift and stability. Single-supply operation from 11.4V to 36V and excelle ...
... without a heater. This results in low power, fast warm-up, excellent stability, and low noise. The output voltage is extremely insensitive to both line and load variations and can be externally adjusted with minimal effect on drift and stability. Single-supply operation from 11.4V to 36V and excelle ...
excitation systems
... A modern excitation control system is much more than a simple voltage regulator ...
... A modern excitation control system is much more than a simple voltage regulator ...
BD9130NV
... 5. Consideration on Permissible Dissipation and Heat Generation Since this IC functions with high efficiency without significant heat generation in most applications, no special consideration is needed on permissible dissipation or heat generation. In case of extreme conditions, however, including l ...
... 5. Consideration on Permissible Dissipation and Heat Generation Since this IC functions with high efficiency without significant heat generation in most applications, no special consideration is needed on permissible dissipation or heat generation. In case of extreme conditions, however, including l ...
Design and implementation of a fiber optic RS232 link. 1987
... THE RS232 INTERFACE In order for two devices to communicate, they must be ...
... THE RS232 INTERFACE In order for two devices to communicate, they must be ...
MF3620902095
... to switch the transistors on and off providing a variable voltage and frequency to the motor. This type of switching is often referred to as six-step because it takes six 60° steps to complete one 360° cycle. Although the motor prefers a smooth sine wave, a six-step output can be satisfactorily used ...
... to switch the transistors on and off providing a variable voltage and frequency to the motor. This type of switching is often referred to as six-step because it takes six 60° steps to complete one 360° cycle. Although the motor prefers a smooth sine wave, a six-step output can be satisfactorily used ...
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.