VEGAWEB MONITORING SYSTEM
... The mini will operate on the GSM/GPRS and CDMA cellular networks. The large unit will also operate through the Orbcom satellite system. Communication modems are included in the pricing of the unit but price varies depending on the modem type. The Mini unit comes with an internal cellular antenna. Co ...
... The mini will operate on the GSM/GPRS and CDMA cellular networks. The large unit will also operate through the Orbcom satellite system. Communication modems are included in the pricing of the unit but price varies depending on the modem type. The Mini unit comes with an internal cellular antenna. Co ...
CIRCUIT FUNCTION AND BENEFITS
... application or use of the Circuits from the Lab circuits. Information furnished by Analog Devices is believed to be accurate and reliable. However, "Circuits from the Lab" are supplied "as is" and without warranties of any kind, express, implied, or statutory including, but not limited to, any impli ...
... application or use of the Circuits from the Lab circuits. Information furnished by Analog Devices is believed to be accurate and reliable. However, "Circuits from the Lab" are supplied "as is" and without warranties of any kind, express, implied, or statutory including, but not limited to, any impli ...
— mWSaver™ PWM Controller FAN6757 FAN 6
... Feedback. The output voltage feedback information from the external compensation circuit is fed into this pin. The PWM duty cycle is determined from this pin and the current-sense signal from Pin 6. The FAN6757 performs open-loop protection: if the FB voltage is higher than a threshold voltage (arou ...
... Feedback. The output voltage feedback information from the external compensation circuit is fed into this pin. The PWM duty cycle is determined from this pin and the current-sense signal from Pin 6. The FAN6757 performs open-loop protection: if the FB voltage is higher than a threshold voltage (arou ...
2016 China International Conference on Electricity Distribution
... application fields of PLC technology will not be limited to the production and operation of power system, it also can be used for broadband communication applied to the fields such as smart grid, smart home, broadband access and lighting control. Compared with the medium such as Ethernet, ADSL and w ...
... application fields of PLC technology will not be limited to the production and operation of power system, it also can be used for broadband communication applied to the fields such as smart grid, smart home, broadband access and lighting control. Compared with the medium such as Ethernet, ADSL and w ...
The high power active filter system for harmonic compensation of
... Active filters can be divided as serial connection to load type (voltage source type), parallel connection to load type (current source type), compound connection to load type (hybrid type).[2,8] The latter type is the most complex to materialize but it proved its appropriateness, so we applied into ...
... Active filters can be divided as serial connection to load type (voltage source type), parallel connection to load type (current source type), compound connection to load type (hybrid type).[2,8] The latter type is the most complex to materialize but it proved its appropriateness, so we applied into ...
6441-045 Mounting Directions for Magnetic Reed
... MOUNTING DIRECTIONS for Magnetic Reed Switch Assemblies 1. Insert switch cable through top of mounting bracket. 2 .Orient bracket with respect to cylinder so that set screws are located on side most convenient. 3 .Slide switch into bracket with end containing indicator light towards center of cylind ...
... MOUNTING DIRECTIONS for Magnetic Reed Switch Assemblies 1. Insert switch cable through top of mounting bracket. 2 .Orient bracket with respect to cylinder so that set screws are located on side most convenient. 3 .Slide switch into bracket with end containing indicator light towards center of cylind ...
Ultra-Low-Voltage Input Power Converters Support Energy Harvesting
... cesses, remote field installations, and building HVAC systems. Energy harvesters are intended for applications that require In addition, otherwise wasted energy from industrial processes, very low average power but also need periodic pulses of higher solar panels, or internal combustion engines can ...
... cesses, remote field installations, and building HVAC systems. Energy harvesters are intended for applications that require In addition, otherwise wasted energy from industrial processes, very low average power but also need periodic pulses of higher solar panels, or internal combustion engines can ...
sppcx7450-rev3Current 6-20-08b.pub
... current pulses variable from 20A to 150A, pulse widths variable from 15µS to 5mS, with rise times and fall times of 5µS to 1mS, and pulse repetition frequencies variable from single shot to 5 KHz with duty cycles limited by total power dissipation. A microprocessor-controlled front-panel and RS-232 ...
... current pulses variable from 20A to 150A, pulse widths variable from 15µS to 5mS, with rise times and fall times of 5µS to 1mS, and pulse repetition frequencies variable from single shot to 5 KHz with duty cycles limited by total power dissipation. A microprocessor-controlled front-panel and RS-232 ...
HFA3101 - Intersil
... carrier ports. The output frequency will be the sum of ωC and ωM which is equivalent to the product of the input frequency by 2 and a zero Hz or DC frequency equivalent to the difference of ωC and ωM . Figure 2 also shows one technique in use today where a process of down conversion named zero IF is ...
... carrier ports. The output frequency will be the sum of ωC and ωM which is equivalent to the product of the input frequency by 2 and a zero Hz or DC frequency equivalent to the difference of ωC and ωM . Figure 2 also shows one technique in use today where a process of down conversion named zero IF is ...
NCL30000LED1GEVB 90-135 Vac up to 15 Watt Dimmable LED Driver Evaluation Board
... The evaluation board regulates constant current and therefore the output voltage is determined by the LED load characteristics at the set current level. Energy storage to maintain high power factor and low output ripple current requires relatively large output filter capacitors. The LED load can be ...
... The evaluation board regulates constant current and therefore the output voltage is determined by the LED load characteristics at the set current level. Energy storage to maintain high power factor and low output ripple current requires relatively large output filter capacitors. The LED load can be ...
Powering Microcontrollers from Industrial Supply Rails
... The simplest way to step down voltage is using a linear voltage regulator. In many cases this is a good solution if load current is low and efficiency is not important. But when the difference between Input and output voltage becomes higher, the regulator dissipation can still become a critical fact ...
... The simplest way to step down voltage is using a linear voltage regulator. In many cases this is a good solution if load current is low and efficiency is not important. But when the difference between Input and output voltage becomes higher, the regulator dissipation can still become a critical fact ...
9 – The Power MOSFET 3
... FIGURE 4.17 (a) Simplified equivalent circuit used to study turn-on and turn-off characteristics of the MOSFET and (b) simplified equivalent circuit. A. Turn-on Analysis Let us assume initially the device is off, the load current, I0, flows through D as shown in the Fig. 4.18a vGG = 0. The voltage ...
... FIGURE 4.17 (a) Simplified equivalent circuit used to study turn-on and turn-off characteristics of the MOSFET and (b) simplified equivalent circuit. A. Turn-on Analysis Let us assume initially the device is off, the load current, I0, flows through D as shown in the Fig. 4.18a vGG = 0. The voltage ...
- Melexis
... The above information is “as is” and believed to be correct and accurate. Melexis disclaims any and all liability in connection with or arising out of the furnishing, application or use of the information or products; any and all liability, including without limitation, special, consequential or inc ...
... The above information is “as is” and believed to be correct and accurate. Melexis disclaims any and all liability in connection with or arising out of the furnishing, application or use of the information or products; any and all liability, including without limitation, special, consequential or inc ...
Document
... by means of a dip switch. ■ Safety : Choose whether or not to activate the fault memorisation ...
... by means of a dip switch. ■ Safety : Choose whether or not to activate the fault memorisation ...
hmrp - Mirus International
... triplen (3rd and 9th) harmonics from the neutral and by canceling the 5th and 7th harmonics through phase-shifting. Overheating of distribution transformers and their neutral conductors is no longer a problem. Voltage distortion is kept well within IEEE Std 519 limits thereby increasing the reliabil ...
... triplen (3rd and 9th) harmonics from the neutral and by canceling the 5th and 7th harmonics through phase-shifting. Overheating of distribution transformers and their neutral conductors is no longer a problem. Voltage distortion is kept well within IEEE Std 519 limits thereby increasing the reliabil ...
MOTOR BOARD
... direct acquisition of speed and direction of rotation - Built-in sight window for optical recognition of speed and direction of rotation and stroboscopic scanning A DC power amplifier is built into the MOTOR BOARD for direct connection to a controller or a PLL circuit. It is possible to plug this am ...
... direct acquisition of speed and direction of rotation - Built-in sight window for optical recognition of speed and direction of rotation and stroboscopic scanning A DC power amplifier is built into the MOTOR BOARD for direct connection to a controller or a PLL circuit. It is possible to plug this am ...
Word - University of California, Berkeley
... approaches infinity? Why is the energy-delay product for N=1 different than that of a standard CMOS inverter (neglecting short circuit current and static dissipation)? ...
... approaches infinity? Why is the energy-delay product for N=1 different than that of a standard CMOS inverter (neglecting short circuit current and static dissipation)? ...
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.