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RFVC1836 数据资料DataSheet下载
RFVC1836 数据资料DataSheet下载

... Product Description RFMD's RFVC1836 is a 5V InGaP MMIC VCO with an integrated frequency divider providing additional Fo/2 and Fo/4 outputs. With an Fo frequency range of 10.4GHz to 11.62GHz its monolithic structure provides excellent temperature, shock, and vibration performance. Output power (Fo) i ...
PHYS 536 DC Circuits Introduction Voltage Source
PHYS 536 DC Circuits Introduction Voltage Source

... 2. Measure the voltage across each resistor. Use both meters, noting differences in your lab report. The meters read the voltage on the input lead relative to the “common” lead. The common side of the meter may be labeled as“low” or “-”. In this circuit the voltage of A relative to D should be positi ...
Capacitor Pattern H-Bridge Multilevel Inverter (CPHMLI) Using
Capacitor Pattern H-Bridge Multilevel Inverter (CPHMLI) Using

... The conventional types of MLI configurations using reviews are discussed. The multilevel inverters are categorized into diode clamped (DCMLI) [1], flying capacitors (FCMLI) and cascade H-bridge topologies (CHB) [2]. Many new topologies/source configurations are being proposed to serve high power app ...
Programmable Single-/Dual-/Triple
Programmable Single-/Dual-/Triple

... approx. 750 mA maximum. The output stage consists of an NPN transistor with its emitter on power GND and collector on pin Q. The current control insures that the output stage only conducts defined currents. In conjunction with the integrated thermal shutdown, this makes the configuration shortcircui ...
Circuit Breaker Types.ppt
Circuit Breaker Types.ppt

... current in a network. However the instantaneous current following a fault will also contain the dc component. In a high power circuit breaker selection, the subtransient current is multiplied by a factor of 1.6 to determine the rms value of the current the circuit breaker must withstand. This curren ...
display
display

... was selected because that was the highest voltage available from the HP6629 power supply that is used for SEL testing. SEL tests were done at room temperature as well as 85ºC. Unlike the Supertex HV9112 controller, this device was very prone to destructive SELs. At room temperature SELs were observe ...
NCEA Level 3 Physics (91526) 2013 Assessment Schedule
NCEA Level 3 Physics (91526) 2013 Assessment Schedule

... the reactance is zero and so the impedance is smallest. When the current is greatest the sound from the speaker is loudest. The current decreases rapidly either side of resonance because the reactance increases either side of resonance. So if the frequency is reduced quickly through the resonant fre ...
Article
Article

... interrupt the IR rays between the IR transmitter and receiver, the IR receiver is not conducting. So the comparator non inverting input terminal voltage is higher than inverting input. Now the comparator output is in the range of +5V. This voltage is given to microcontroller or PC and led so led wil ...
MAX742 Switch-Mode Regulator with +5V to ±12V or ±15V Dual Output _______________General Description
MAX742 Switch-Mode Regulator with +5V to ±12V or ±15V Dual Output _______________General Description

... The MAX742 DC-DC converter is a controller for dual-output power supplies in the 3W to 60W range. Relying on simple two-terminal inductors rather than transformers, the MAX742 regulates both outputs independently to within ±4% over all conditions of line voltage, temperature, and load current. The M ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)

... (VSC), with common dc link, operating with nearly fundamental switching frequency, and the output of each module is connected in series through the multi pulse transformer. By adjusting the triggering pulses of different VSCs, specified total harmonic distortion (THD) of the injected current is achi ...
FAN6862R / FAN6862L Highly Integrated Green-Mode PWM Controller
FAN6862R / FAN6862L Highly Integrated Green-Mode PWM Controller

single-phase static active electricity meters ed 110
single-phase static active electricity meters ed 110

... the operator of the conditions of safe operation. • The product may not be used for other purposes that it was manufactured for. • The product may not be modified wilfully to differ from the type designation. • The product may not be operated with different voltage, current and frequency than for ...
Section 2. The Full Wave Rectifier
Section 2. The Full Wave Rectifier

1 - Scope - OPS Schneider Electric
1 - Scope - OPS Schneider Electric

400A AC/DC Current Clamp-on MultiMeter Adaptor
400A AC/DC Current Clamp-on MultiMeter Adaptor

... This symbol indicates that double insulation is used. WARNING: ...
Preliminary Work
Preliminary Work

soln_1-99
soln_1-99

determination of instantaneous values of power components in an
determination of instantaneous values of power components in an

2.1 Introduction - Fred. Olsen Energy
2.1 Introduction - Fred. Olsen Energy

High-Efficiency Pumps
High-Efficiency Pumps

... Incorrect rotation will damage the pump and void the warranty! For 3-phase power, electrically check rotation of impeller with volute disassembled from bracket. If pump end is assembled and rotation is incorrect, serious damage to pump end assembly will occur even if the switch is "quickly bumped." ...
LC200 LED Lighting Controller User Manual 1 Disclaimer 2 Safety
LC200 LED Lighting Controller User Manual 1 Disclaimer 2 Safety

... LC200 will not allow pulses greater than 1millisecond long. If the trigger pulses are too close together so that the lights are on for more than 10% of the time, the LC200 will stop the output and flag an error. ...
Article for Elektuur – August 2008
Article for Elektuur – August 2008

... What is somewhat peculiar in this circuit is the presence of Rx, whose purpose will be fully explained later. Basically, it supplies an extra current to the cathode resistor Rk2. In the schematics, you will notice that :a) there are two separate power supplies (see Fig.#3 and Table#2 for details), o ...
COMP3221: Microprocessors and Embedded Systems
COMP3221: Microprocessors and Embedded Systems

Section #25 30 03 - EMCS: Variable Frequency Drives (to 600 Volts)
Section #25 30 03 - EMCS: Variable Frequency Drives (to 600 Volts)

... over-voltage, under-voltage, or loss of input signal protective trip. The number of restart attempts, trial time, and time between attempts shall be programmable. The VFD shall have an integral 5% impedance reactor to reduce the harmonics to the power line and to add protection from AC line transien ...
6-Outlet Industrial Surge Protector, 6
6-Outlet Industrial Surge Protector, 6

... Warranty information Instruction manual ...
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Variable-frequency drive



A variable-frequency drive (VFD) (also termed adjustable-frequency drive, variable-speed drive, AC drive, micro drive or inverter drive) is a type of adjustable-speed drive used in electro-mechanical drive systems to control AC motor speed and torque by varying motor input frequency and voltage.VFDs are used in applications ranging from small appliances to the largest of mine mill drives and compressors. However, around 25% of the world's electrical energy is consumed by electric motors in industrial applications, which are especially conducive for energy savings using VFDs in centrifugal load service, and VFDs' global market penetration for all applications is still relatively small. That lack of penetration highlights significant energy efficiency improvement opportunities for retrofitted and new VFD installations.Over the last four decades, power electronics technology has reduced VFD cost and size and has improved performance through advances in semiconductor switching devices, drive topologies, simulation and control techniques, and control hardware and software.VFDs are available in a number of different low- and medium-voltage AC-AC and DC-AC topologies.
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