wireless energy meter reading system using zigbee
... designed to operate from lower voltages. Most ICs (chips) cannot operate with this small current. Thus a transistor is usually used to amplify the small IC current to the larger value required for the relay coil. The maximum output current for the popular 555 timer IC is 200mA so these devices can s ...
... designed to operate from lower voltages. Most ICs (chips) cannot operate with this small current. Thus a transistor is usually used to amplify the small IC current to the larger value required for the relay coil. The maximum output current for the popular 555 timer IC is 200mA so these devices can s ...
IMPLEMENTATION OF NEW H- BRIDGE MULTILEVEL INVERTER
... of the multilevel inverter. Fundamental frequency switching control algorithm is used to drive the low frequency part of the multilevel inverter. This proposed topology can be used in power applications such as FACTS, HVDC, PV systems integration with grids, UPS, etc. The switching operation is sepa ...
... of the multilevel inverter. Fundamental frequency switching control algorithm is used to drive the low frequency part of the multilevel inverter. This proposed topology can be used in power applications such as FACTS, HVDC, PV systems integration with grids, UPS, etc. The switching operation is sepa ...
AC Power Local Network with Multiple Power Routers
... system is strongly affected by weather conditions that cause fluctuations in frequency and voltage. In 1998, Toyoda et al. proposed the concept of an open-electric-energy-network (OEEN) where power flow is controlled by multiple electric-energy-routers [1]. This power routing makes it possible for m ...
... system is strongly affected by weather conditions that cause fluctuations in frequency and voltage. In 1998, Toyoda et al. proposed the concept of an open-electric-energy-network (OEEN) where power flow is controlled by multiple electric-energy-routers [1]. This power routing makes it possible for m ...
MAX2880 General Description Benefits and Features
... accepting RF input frequencies of up to 12.4GHz. ...
... accepting RF input frequencies of up to 12.4GHz. ...
Chapter 5 ELECTRIC CURRENTS
... other forms of energy. For example, a ilament lamp converts electrical energy into heat and light energy. As charges move in the circuit, they gain energy supplied by the energy source. For a charge to move from one point to another in a circuit, there has to be a potential ...
... other forms of energy. For example, a ilament lamp converts electrical energy into heat and light energy. As charges move in the circuit, they gain energy supplied by the energy source. For a charge to move from one point to another in a circuit, there has to be a potential ...
Seminar Report
... devices, harmonic overloads, high levels of voltage and current distortion, temperature rise in conductors and all contributeto reducing the quality and the reliability of a low-voltage AC system. The above disturbances are well and directly related to the proliferationof loads consuming non-sinusoi ...
... devices, harmonic overloads, high levels of voltage and current distortion, temperature rise in conductors and all contributeto reducing the quality and the reliability of a low-voltage AC system. The above disturbances are well and directly related to the proliferationof loads consuming non-sinusoi ...
PowerDsine™ PoE Midspans & LED Lighting
... Also saves on design of PD (NO need for a AC power jack on each devices, as well as you can use Buck instead of Flyback on DC/DC Topology) ...
... Also saves on design of PD (NO need for a AC power jack on each devices, as well as you can use Buck instead of Flyback on DC/DC Topology) ...
SuperIOr™ Controller - Digital Dynamics, Inc.
... heaters, RF generators, turbo pumps, liquid baths, mechanical hoists and robot transfer arms. A supervisory computer may orchestrate the overall activity by sending commands to I/O controllers which, in turn, activate the various pumps, valves and generators. These controllers must always operate s ...
... heaters, RF generators, turbo pumps, liquid baths, mechanical hoists and robot transfer arms. A supervisory computer may orchestrate the overall activity by sending commands to I/O controllers which, in turn, activate the various pumps, valves and generators. These controllers must always operate s ...
INVESTIGATION OF HEAT TRANSFER IN INTEGRATED CIRCUITS
... Thermal issues in semiconductors were investigated and modeled since the 70’s, beginning from single elements [7] to quite complex systems nowadays. As an effect it is a quite well-described area of research. An early concept to model the integrated circuits are R-C networks [8, 9]. Despite their li ...
... Thermal issues in semiconductors were investigated and modeled since the 70’s, beginning from single elements [7] to quite complex systems nowadays. As an effect it is a quite well-described area of research. An early concept to model the integrated circuits are R-C networks [8, 9]. Despite their li ...
Transmission Line Design Information In these notes, I would like to
... 765kV line (see example above) is computed to have an ampacity of about 860 amperes at 75 °C conductor temperature, 25 °C ambient temperature, and 2 ft/sec wind speed. At 6 conductors per phase, this allows for 6×860=5160 amperes, which would correspond to a power transfer of √3 * 765000 * 5160=6837 ...
... 765kV line (see example above) is computed to have an ampacity of about 860 amperes at 75 °C conductor temperature, 25 °C ambient temperature, and 2 ft/sec wind speed. At 6 conductors per phase, this allows for 6×860=5160 amperes, which would correspond to a power transfer of √3 * 765000 * 5160=6837 ...
Chapter 7 — Charge Controllers
... Long conductors between a charge controller and a battery bank have resistance that causes voltage drops. Voltage drops affect the voltage measured at the charge controller, which triggers overcharge and overdischarge protections too early. ...
... Long conductors between a charge controller and a battery bank have resistance that causes voltage drops. Voltage drops affect the voltage measured at the charge controller, which triggers overcharge and overdischarge protections too early. ...
Cyclone IV Device Family Pin Connection Guidelines
... When using this pin, connect it to an external 10-KΩ pull-up resistor to an acceptable voltage for all devices in the chain that configuration SRAM bits. This pin is optional and is used when the CRC error detection circuit is satisfies the input voltage of the receiving device. When not using this ...
... When using this pin, connect it to an external 10-KΩ pull-up resistor to an acceptable voltage for all devices in the chain that configuration SRAM bits. This pin is optional and is used when the CRC error detection circuit is satisfies the input voltage of the receiving device. When not using this ...
Factor Affecting Characteristic of Voltage Sag Due to Fault in the
... noted that this network represents a typical distribution network with several hundred nodes spread along the main feeder and lateral but only the node supplying the most critical customer needs to be examined. The equivalent transmission system consists of three 150 kV lines and is relatively of la ...
... noted that this network represents a typical distribution network with several hundred nodes spread along the main feeder and lateral but only the node supplying the most critical customer needs to be examined. The equivalent transmission system consists of three 150 kV lines and is relatively of la ...
Axial-Flux PM Wind Generator with a Soft Magnetic Composite Core
... machines with other topologies in many aspects, such as high efficiency, short length and high torque /volume ratio [1]. The crucial issue to build this kind of machine is to form the armature core with slots and teeth. Solid steel cannot be used because of eddy currents. If common electrical steel ...
... machines with other topologies in many aspects, such as high efficiency, short length and high torque /volume ratio [1]. The crucial issue to build this kind of machine is to form the armature core with slots and teeth. Solid steel cannot be used because of eddy currents. If common electrical steel ...
AL80B manual
... eliminates "motor-boating" (a slow rhythmic fluctuation) in the transmitted signal. These problems are caused by excessive transceiver ALC attack time delay. This control sets the maximum voltage level available from the ALC circuit. Adjustment details are given on page 15. Dynamic Bias Conventional ...
... eliminates "motor-boating" (a slow rhythmic fluctuation) in the transmitted signal. These problems are caused by excessive transceiver ALC attack time delay. This control sets the maximum voltage level available from the ALC circuit. Adjustment details are given on page 15. Dynamic Bias Conventional ...
GaN-on-diamond Field-Effect Transistors: from
... professional, and military electronics [1,2]. High-power RF electronics based on GaN are actively being investigated by chip manufacturers for replacement of silicon LDMOS and GaAs pHEMTs in wireless and microwave communication systems and commercial phased-array radar. Manufacturers of radar, deep- ...
... professional, and military electronics [1,2]. High-power RF electronics based on GaN are actively being investigated by chip manufacturers for replacement of silicon LDMOS and GaAs pHEMTs in wireless and microwave communication systems and commercial phased-array radar. Manufacturers of radar, deep- ...
Ultra Low Power VLSI Design: A Review
... Area, Speed, Cost and Power dissipation are the major concerns when designing a VLSI system. Now a day’s power dissipation became major concern for VLSI Engineers. Static power is defined as the power consumed by the device when it is in inactive mode and dynamic power is the power consumed when the ...
... Area, Speed, Cost and Power dissipation are the major concerns when designing a VLSI system. Now a day’s power dissipation became major concern for VLSI Engineers. Static power is defined as the power consumed by the device when it is in inactive mode and dynamic power is the power consumed when the ...
A Four Quadrant Speed Control BLDC Motor Using GA
... Permanent Magnetalternators and torous alternators with different rotorgeometries like surface type, interior type, radial and axial field machines in two, three and multiphase PMBLDC machines. ...
... Permanent Magnetalternators and torous alternators with different rotorgeometries like surface type, interior type, radial and axial field machines in two, three and multiphase PMBLDC machines. ...
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.