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IOSR Journal of Electronics and Communication Engineering (IOSR-JECE)
IOSR Journal of Electronics and Communication Engineering (IOSR-JECE)

single-phase bridge rectifiers with current filters
single-phase bridge rectifiers with current filters

... is simpler, cheaper and more easily controllable. On the other hand, because the single-phase rectifiers perform only a two-pulse rectification, the pulses’ frequency from the output voltage waveform is low and large current or voltage filters are required. A two-pulse rectification can also be achi ...
Dual-Output, Low Dropout Volt Regs w/ Integrated SVS for Split
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Frequency Response of Filters - ECE, Rutgers
Frequency Response of Filters - ECE, Rutgers

micro DC/DC Converter
micro DC/DC Converter

... Miniaturization and a low profile are demanded of the semiconductors and electronic components used in portable devices such as smartphones and tablets. Accompanying the lower voltages and larger currents used in semiconductors in devices, DC/DC converters, which have a higher conversion efficiency ...
Reduce energy costs with efficient solar power
Reduce energy costs with efficient solar power

... A decentralised system routes DC power generated by the solar panels through more than one inverter. This architecture may be the best choice for PV systems which incorporate panels of different brands or technical characteristics, or use mismatched generators. Having more than one inverter lets you ...
MPU/0 Instructions(Word)
MPU/0 Instructions(Word)

... negative (6) to switch line (5) on receipt of a signal from a radio receiver, providing operation of both motors. 8 – 9 - 10 SAFETY INPUT (N.C.) This input, when removed from negative (9) and safety line (8), stops both motors from running in the closed direction, and starts them running in the open ...
Unit_8_AP_Review_Problems---Current_Electricity_and_RC_Circuits
Unit_8_AP_Review_Problems---Current_Electricity_and_RC_Circuits

... What happens to the total circuit current if one lamp in a three-lamp series circuit burns out? What happens to the total circuit current if one lamp in a three-lamp parallel circuit burns out? If all you had were 6V bulbs (bulbs that will break if they have more than 6V across them), would it be po ...
Understanding of tuning techniques of converter controllers for VSC
Understanding of tuning techniques of converter controllers for VSC

v I
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Understanding Risk of Cardiac Stimulation When
Understanding Risk of Cardiac Stimulation When

FSA1208 Low-Power, Eight-Port, High-Speed Isolation Switch FSA1208 — Low-Power, Eight-Port, Features
FSA1208 Low-Power, Eight-Port, High-Speed Isolation Switch FSA1208 — Low-Power, Eight-Port, Features

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Portable Three-Phase Meter Tester/Analyzer
Portable Three-Phase Meter Tester/Analyzer

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Studies on metal–semiconductor contacts with ZrN as metal layer
Studies on metal–semiconductor contacts with ZrN as metal layer

... been extensively explored for this purpose. While most of them have success to some degree, refractory metal nitrides are generally considered as very promising candidates for gate materials. Metallization in semiconductor devices is not only for carrying current, they also play an active role in de ...
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TAT6254C 数据资料DataSheet下载

... Gain control is accommodated with a low cost external PIN diode circuit placed between the input trans-impedance amplifier and the output amplifier. This helps reduce the die size of the TAT6254C and provides for excellent PIN diode distortion characteristics over a continuous control range. Up to ...
Control apparatus for electronic dimmers
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... and 2 which supply current to lamp loads L1 and L2 are 40 nals 50A and 50B of the ?ip-?op circuit is controlled varied by the control apparatus 28 which is actuated by by the signal applied to terminals 47, 49. Pulses may the supervisory control apparatus 30. The electronic dim— be provided by a man ...
Hybrid Multilevel Power Conversion System: A Competitive Solution for High-Power Applications
Hybrid Multilevel Power Conversion System: A Competitive Solution for High-Power Applications

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... • There are similarities in the way we state Kirchhoff’s voltage and Kirchhoff’s current laws: algebraic sums … However, one would never say that the sum of the voltages entering a junction point in a circuit equal to zero. Likewise, one would never say that the sum of the currents around a closed p ...
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... When OCP is activated, the active power transistor is turned off and the other power transistor is turned on to reduce the current (CPROT is partially discharged). Normal operation is resumed at the next switching cycle (CPROT is recharged). CPROT is partially discharge each time OCP is activated du ...
NCP1653(PFC controller)
NCP1653(PFC controller)

... reduced bypulling down an internal signal when a computedinput power exceeds a permissible level. OPL isautomatically deactivated when this computed inputpower becomes lower than the permissible level.4.Overcurrent Protection (OCP) is activated andthe Drive Output (Pin 7) goes low when theinductor c ...
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A Fast Electrical Energy Measurement Device and Power

... 3. Electric Vehicle Charging Energy Measurement Method Based on FFT and Wavelet Analysis 3.1. Harmonic Energy Metering based on FFT When the electric vehicle is fast charged by electric vehicle charging machine, it will cause grid voltage distortion to generate a large amount of harmonic, polluting ...
III. real and reactive power equations in a bus
III. real and reactive power equations in a bus

... Here, the real power |P| and reactive power |Q| are specified. It is also known as Load Bus. In these type of buses there are no generators are connected in power network and hence the generated real power PGi and reactive power QGi are taken as zero [3]. The load distraught by these buses are indic ...
PGA-102+ - Mini Circuits
PGA-102+ - Mini Circuits

... The PGA-102+ provides good IP3 performance relative to device size and power consumption. The combination of the design and E-PHEMT Structure provides enhanced linearity over a broad frequency range as evidence in the IP3 being typically 15 dB above the P 1dB point. This feature makes this amplifier ...
Digital Motion Control System Design
Digital Motion Control System Design

... switch or inline with motor phase If sampled in leg of switch a time when all Switches are switched to ground must be allowed Leg sampling will not allow for 100% duty cycle operation Depending on worst case slew rate as much as 10% duty cycle might be lost Sampling in line with phase requires eithe ...
92KB - NZQA
92KB - NZQA

... The concept of referencing systems to the general mass of earth is explained. Range ...
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Switched-mode power supply



A switched-mode power supply (switching-mode power supply, switch-mode power supply, SMPS, or switcher) is an electronic power supply that incorporates a switching regulator to convert electrical power efficiently. Like other power supplies, an SMPS transfers power from a source, like mains power, to a load, such as a personal computer, while converting voltage and current characteristics. Unlike a linear power supply, the pass transistor of a switching-mode supply continually switches between low-dissipation, full-on and full-off states, and spends very little time in the high dissipation transitions, which minimizes wasted energy. Ideally, a switched-mode power supply dissipates no power. Voltage regulation is achieved by varying the ratio of on-to-off time. In contrast, a linear power supply regulates the output voltage by continually dissipating power in the pass transistor. This higher power conversion efficiency is an important advantage of a switched-mode power supply. Switched-mode power supplies may also be substantially smaller and lighter than a linear supply due to the smaller transformer size and weight.Switching regulators are used as replacements for linear regulators when higher efficiency, smaller size or lighter weight are required. They are, however, more complicated; their switching currents can cause electrical noise problems if not carefully suppressed, and simple designs may have a poor power factor.
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