Element 4: Electrical Hazards and Control
... sensation is felt by the person receiving the shock. • Between 2 and 10 mA current starts to flow through the body and stimulates muscles to contract. This can be felt, it causes muscles to tremble and it may hurt. But the person receiving the shock is able to control their muscles and can let go o ...
... sensation is felt by the person receiving the shock. • Between 2 and 10 mA current starts to flow through the body and stimulates muscles to contract. This can be felt, it causes muscles to tremble and it may hurt. But the person receiving the shock is able to control their muscles and can let go o ...
FED 101: Computer Engineering Module Version 1.3
... (1) over into the next digit position. We observe additionally that the carry can never be greater than unity. The same principles are applied when we add two binary numbers. It is just a question of knowing that for binary numbers 0 + 0 = 0, 0 + 1 = 1 + 0 = 1, 1 + 1 = 10 and 1 + 1 + 1 = 11. Since ...
... (1) over into the next digit position. We observe additionally that the carry can never be greater than unity. The same principles are applied when we add two binary numbers. It is just a question of knowing that for binary numbers 0 + 0 = 0, 0 + 1 = 1 + 0 = 1, 1 + 1 = 10 and 1 + 1 + 1 = 11. Since ...
4.1 Cross coupled sense amplifier flip-flop
... between power and delay for a circuit while keeping smallest possible area and complexity to reduce the overall cost of manufacturing. High performances flip-flops are key elements in the design of contemporary high-speed integrate circuits. As the power budget of today’s portable digital circuit is ...
... between power and delay for a circuit while keeping smallest possible area and complexity to reduce the overall cost of manufacturing. High performances flip-flops are key elements in the design of contemporary high-speed integrate circuits. As the power budget of today’s portable digital circuit is ...
Finger Print Project
... Nowadays accurate personal identification is becoming more and more important. Usual means (smart cards, passwords…) have shown their limits. Currently fingerprint recognition is the most widely used technique for personal identification. The use of ink and paper to get an image from a finger was us ...
... Nowadays accurate personal identification is becoming more and more important. Usual means (smart cards, passwords…) have shown their limits. Currently fingerprint recognition is the most widely used technique for personal identification. The use of ink and paper to get an image from a finger was us ...
beat-frequency audio genera tor
... fluctuation of the meter pointer, is as slow as possible. When the oscillator frequency is near the line frequency there is a large-amplitude fluctuation. At multiples of the line frequency small-amplitude fluctuations are obtained. f. To determine that the adjustment was made at the correct beat, t ...
... fluctuation of the meter pointer, is as slow as possible. When the oscillator frequency is near the line frequency there is a large-amplitude fluctuation. At multiples of the line frequency small-amplitude fluctuations are obtained. f. To determine that the adjustment was made at the correct beat, t ...
AD9741 数据手册DataSheet 下载
... WCDMA, CDMA2000, TD-SCDMA, WiMAX Wideband communications: LMDS/MMDS, point-to-point Instrumentation: RF signal generators, arbitrary waveform generators ...
... WCDMA, CDMA2000, TD-SCDMA, WiMAX Wideband communications: LMDS/MMDS, point-to-point Instrumentation: RF signal generators, arbitrary waveform generators ...
Electrical symbol for current is I
... How to avoid shock. • Turn power off before working on equipment. • Don’t touch circuits that could have high voltage on them. • Do not allow current to flow through heart (or maybe mouth, in this case). ...
... How to avoid shock. • Turn power off before working on equipment. • Don’t touch circuits that could have high voltage on them. • Do not allow current to flow through heart (or maybe mouth, in this case). ...
Introduction to MatLab: Circuit Analysis
... fluid. The inductance is the mass that is moving. • Inductor Law V=L*dI/dt (dI/dt is the “rate of change” in the current. This is analogous to velocity.) Introduction to MatLab: Circuit Analysis ...
... fluid. The inductance is the mass that is moving. • Inductor Law V=L*dI/dt (dI/dt is the “rate of change” in the current. This is analogous to velocity.) Introduction to MatLab: Circuit Analysis ...
"Supply-Voltage Supervisors"
... for undervoltage conditions at the SENSE input. During power up, the RESET output becomes active (low) when VCC attains a value approaching 3.6 V. At this point (assuming that SENSE is above VIT+), the delay timer function activates a time delay, after which outputs RESET and RESET go inactive (high ...
... for undervoltage conditions at the SENSE input. During power up, the RESET output becomes active (low) when VCC attains a value approaching 3.6 V. At this point (assuming that SENSE is above VIT+), the delay timer function activates a time delay, after which outputs RESET and RESET go inactive (high ...
product specification
... conducted at ordinary temperature (20+20C) and ordinary humidity (65+5%RH). 4.2 Storage of test specimen batteries: Specimen batteries to be tested shall be kept at the ambient temperature of 250C or below and at the relative humidity of 75% or below. 4.3 Measuring instruments and devices: Outer mic ...
... conducted at ordinary temperature (20+20C) and ordinary humidity (65+5%RH). 4.2 Storage of test specimen batteries: Specimen batteries to be tested shall be kept at the ambient temperature of 250C or below and at the relative humidity of 75% or below. 4.3 Measuring instruments and devices: Outer mic ...
Introduction to MatLab: Circuit Analysis
... fluid. The inductance is the mass that is moving. • Inductor Law V=L*dI/dt (dI/dt is the “rate of change” in the current. This is analogous to velocity.) Introduction to MatLab: Circuit Analysis ...
... fluid. The inductance is the mass that is moving. • Inductor Law V=L*dI/dt (dI/dt is the “rate of change” in the current. This is analogous to velocity.) Introduction to MatLab: Circuit Analysis ...
English
... the wall box without having to force it. Ensure that the wires are positioned so that the mounting screws will not damage the wire insulation when they are installed. 6. Once complete, turn the power back on to your heating equipment at the circuit breaker and confirm proper heating operation in all ...
... the wall box without having to force it. Ensure that the wires are positioned so that the mounting screws will not damage the wire insulation when they are installed. 6. Once complete, turn the power back on to your heating equipment at the circuit breaker and confirm proper heating operation in all ...
Important parameters of the microcontroller
... Freescale ColdFire Aaron Harris The ColdFire family of microcontrollers are 32 bit processors with extensive features. They are based on Motorola’s 68k architecture. Depending on requirements, there are ColdFire packages with many different modules available. Some of the modules include SCI, SPI an ...
... Freescale ColdFire Aaron Harris The ColdFire family of microcontrollers are 32 bit processors with extensive features. They are based on Motorola’s 68k architecture. Depending on requirements, there are ColdFire packages with many different modules available. Some of the modules include SCI, SPI an ...
SECTION 263213 - ENGINE GENERATORS
... within the rated load, there shall be no random speed variations outside the steady-state operational band and no hunting or surging of speed. Transient Frequency Performance: Less than 2-Hz variation for 50 percent stepload increase or decrease. Frequency shall recover and remain within the steadys ...
... within the rated load, there shall be no random speed variations outside the steady-state operational band and no hunting or surging of speed. Transient Frequency Performance: Less than 2-Hz variation for 50 percent stepload increase or decrease. Frequency shall recover and remain within the steadys ...
AN4057
... family built on the Power Architecture®. The device is supplied externally with a single voltage supply, which can be either 5 V or 3.3 V depending on application requirements. Internally the chip operates with 2 supply voltages, namely the main supply (5 V or 3.3 V) and the core logic supply (1.2 V ...
... family built on the Power Architecture®. The device is supplied externally with a single voltage supply, which can be either 5 V or 3.3 V depending on application requirements. Internally the chip operates with 2 supply voltages, namely the main supply (5 V or 3.3 V) and the core logic supply (1.2 V ...
Op er at ing In struc tions
... fresh batteries installed) turn on your receiver, but DO NOT turn on any other receiver or transmitter at this time. If audible interference is present, this may in di cat e an other user on the channel. Monitoring should be repeated for each channel that you propose to use. DO NOT use channels that ...
... fresh batteries installed) turn on your receiver, but DO NOT turn on any other receiver or transmitter at this time. If audible interference is present, this may in di cat e an other user on the channel. Monitoring should be repeated for each channel that you propose to use. DO NOT use channels that ...
Electrical safety for ships, mobile and fixed offshore platforms
... The unearthed electrical system is continuously monitored by an ISOMETER®. Connected between the active conductors and earth (ship’s hull), it superimposes a measuring voltage on the system. If an insulation fault occurs, the measuring circuit is closed and a small measuring current will flow. This ...
... The unearthed electrical system is continuously monitored by an ISOMETER®. Connected between the active conductors and earth (ship’s hull), it superimposes a measuring voltage on the system. If an insulation fault occurs, the measuring circuit is closed and a small measuring current will flow. This ...
extending lifetime on t5 fluorescent lamp using an electronic ballast
... In the last years, it have had an evolution in use of the more efficient illuminating systems, certainly motivated by increase of energy cost in the majority of countries. The investment necessary to generate and to distribute electric energy is too large that governments adopt programs to promote u ...
... In the last years, it have had an evolution in use of the more efficient illuminating systems, certainly motivated by increase of energy cost in the majority of countries. The investment necessary to generate and to distribute electric energy is too large that governments adopt programs to promote u ...
A.C. Chow and D.J. Perreault, “Active EMI Filters for Automotive Motor Drives,” 2002 IEEE Workshop on Power Electronics in Transportation , Auburn Hills, MI, October 2002, pp. 127-134.
... An alternative to the conventional passive filtering approach is to use a hybrid passive/active filter [2-13]. In this approach, a reduced passive filter is coupled with an active electronic circuit to attenuate the ripple. The passive filter serves to limit the ripple to a level manageable by the a ...
... An alternative to the conventional passive filtering approach is to use a hybrid passive/active filter [2-13]. In this approach, a reduced passive filter is coupled with an active electronic circuit to attenuate the ripple. The passive filter serves to limit the ripple to a level manageable by the a ...
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.