Broadband Low-Noise CMOS Mixers for Wireless Communications Fan Jiang
... In this thesis, three broadband low-noise mixing circuits which use CMOS 130 nm technology are presented. As one of the first few stages in a receiving front-end, stringent requirements are posted on mixer performance. The Gilbert cell mixers have presented excellent properties and achieved wide app ...
... In this thesis, three broadband low-noise mixing circuits which use CMOS 130 nm technology are presented. As one of the first few stages in a receiving front-end, stringent requirements are posted on mixer performance. The Gilbert cell mixers have presented excellent properties and achieved wide app ...
cascaded and hybrid multilevel inverters with reduced number of
... require higher power apparatus in recent years. Some medium voltage motor drives and utility applications require medium voltage and MW power level. For a medium voltage grid, it is troublesome to connect one power semiconductor switch directly [1-2]. High power and medium voltage inverter has recen ...
... require higher power apparatus in recent years. Some medium voltage motor drives and utility applications require medium voltage and MW power level. For a medium voltage grid, it is troublesome to connect one power semiconductor switch directly [1-2]. High power and medium voltage inverter has recen ...
Application notes
... of the titanate material, which is approx. 2.7 Ws/Kcm3. At short switching times less than 5 s with commonly used overcurrent protection devices heat dissipation through the surface and lead wires is virtually negligible. Almost the entire electrical dissipation is consumed to heat up the cerami ...
... of the titanate material, which is approx. 2.7 Ws/Kcm3. At short switching times less than 5 s with commonly used overcurrent protection devices heat dissipation through the surface and lead wires is virtually negligible. Almost the entire electrical dissipation is consumed to heat up the cerami ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
... With advances in switch technology that have made them suitable for the voltage and power levels necessary for power applications, power electronic switches can be used to build devices that could sustain repeated operations with high reliability and without wearing out [17]. There are 2 main types ...
... With advances in switch technology that have made them suitable for the voltage and power levels necessary for power applications, power electronic switches can be used to build devices that could sustain repeated operations with high reliability and without wearing out [17]. There are 2 main types ...
ACKNOWLEDGEMENTS I would like to thank Dr. George Engel, for
... nucleus is determined by the number of protons it contains; in the neutral atom this positive charge is balanced by an equal number of negatively charged electrons orbiting the nucleus in a comparatively large region outside it. Nuclei came into being through cataclysmic events in the evolution of t ...
... nucleus is determined by the number of protons it contains; in the neutral atom this positive charge is balanced by an equal number of negatively charged electrons orbiting the nucleus in a comparatively large region outside it. Nuclei came into being through cataclysmic events in the evolution of t ...
Diapositive 1 - CEA-Irfu
... to both analog readout and large detector capacitances: the APV0.25 designed for CMS could be an option (under evaluation): + nearly a perfect chip + we already use it. ...
... to both analog readout and large detector capacitances: the APV0.25 designed for CMS could be an option (under evaluation): + nearly a perfect chip + we already use it. ...
LT5554
... of input coupling capacitor sets the low frequency corner (LF) at input. The output coupling capacitors or the transformer sets the low frequency corner (LF) at the output. The LT5554 operates internally down to DC. ...
... of input coupling capacitor sets the low frequency corner (LF) at input. The output coupling capacitors or the transformer sets the low frequency corner (LF) at the output. The LT5554 operates internally down to DC. ...
io LED Handrail
... infill options. io ensures that each LED is provided thermal and electrical management properties in accordance with the LED manufacturers recommendations. Projected average rated life is 50,000 hours at 70% of lamp lumen output. Contact factory for IES LM-80 compliance. To ensure proper performance ...
... infill options. io ensures that each LED is provided thermal and electrical management properties in accordance with the LED manufacturers recommendations. Projected average rated life is 50,000 hours at 70% of lamp lumen output. Contact factory for IES LM-80 compliance. To ensure proper performance ...
AD7792/AD7793 3-Channel, Low Noise, Low Power, 16-/24-Bit ∑
... CS falling edge to DOUT/RDY active time DVDD = 4.75 V to 5.25 V DVDD = 2.7 V to 3.6 V SCLK active edge to data valid delay 4 DVDD = 4.75 V to 5.25 V DVDD = 2.7 V to 3.6 V Bus relinquish time after CS inactive edge SCLK inactive edge to CS inactive edge SCLK inactive edge to DOUT/RDY high ...
... CS falling edge to DOUT/RDY active time DVDD = 4.75 V to 5.25 V DVDD = 2.7 V to 3.6 V SCLK active edge to data valid delay 4 DVDD = 4.75 V to 5.25 V DVDD = 2.7 V to 3.6 V Bus relinquish time after CS inactive edge SCLK inactive edge to CS inactive edge SCLK inactive edge to DOUT/RDY high ...
Bus Edison Glossary of Terms
... available overcurrents within its interrupting rating; 2) within its current-limiting range, limits the clearing time at rated voltage to an interval equal to, or less than, the first major or symmetrical current loop duration; and 3) limits peak let-through current to a value less than the availabl ...
... available overcurrents within its interrupting rating; 2) within its current-limiting range, limits the clearing time at rated voltage to an interval equal to, or less than, the first major or symmetrical current loop duration; and 3) limits peak let-through current to a value less than the availabl ...
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... http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requ ...
... http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requ ...
FEEDER PROTECTION SySTEM Economical and compact feeder
... the FM2 relay. The EnerVista™ FM2 Setup Software extracts the model number, version, and configuration parameters from the connected relay to display only the relevant data and options for the relay it is communicating with. This eliminates having to manually configure the relay within the software ...
... the FM2 relay. The EnerVista™ FM2 Setup Software extracts the model number, version, and configuration parameters from the connected relay to display only the relevant data and options for the relay it is communicating with. This eliminates having to manually configure the relay within the software ...
EndOhm Instruction Manual - World Precision Instruments
... and allow the lower and upper electrodes to soak in the distilled water for a minimum of one minute. Discard the water and dry both the upper and lower electrodes with a Kimwipe (lint-free, absorbent wipe. Do not use anything more abrasive than a cotton swab for cleaning the EndOhm Between experimen ...
... and allow the lower and upper electrodes to soak in the distilled water for a minimum of one minute. Discard the water and dry both the upper and lower electrodes with a Kimwipe (lint-free, absorbent wipe. Do not use anything more abrasive than a cotton swab for cleaning the EndOhm Between experimen ...
DC Motors Introduction D.C. motors are seldom used in ordinary
... Thus upto magnetiv saturation, the armature torque is directly proportional to the sequare of armature current. If Ia is doubled, Ta is almost quadrupled. Theredor , Ta/Ia curve upto magnetiv saruration is a parabola( portion OA of the curve in Fig. 5.35). However, after magnetic saturation, torque ...
... Thus upto magnetiv saturation, the armature torque is directly proportional to the sequare of armature current. If Ia is doubled, Ta is almost quadrupled. Theredor , Ta/Ia curve upto magnetiv saruration is a parabola( portion OA of the curve in Fig. 5.35). However, after magnetic saturation, torque ...
Understanding Fault Characteristics of Inverter
... One of the most important aspects of planning and operating electrical power systems is the design of protection systems. Protection systems are designed to detect and remove faults. A fault in an electrical power system is the unintentional conducting path (short circuit) or blockage of current (op ...
... One of the most important aspects of planning and operating electrical power systems is the design of protection systems. Protection systems are designed to detect and remove faults. A fault in an electrical power system is the unintentional conducting path (short circuit) or blockage of current (op ...
GP08A, GP08B, GP08D, GP08G, GP08J Glass Passivated
... Parameters provided in datasheets and / or specifications may vary in different applications and performance may vary over time. All operating parameters, including typical parameters, must be validated for each customer application by the customer’s technical experts. Product specifications do not ...
... Parameters provided in datasheets and / or specifications may vary in different applications and performance may vary over time. All operating parameters, including typical parameters, must be validated for each customer application by the customer’s technical experts. Product specifications do not ...
LTC2990 - Quad I2C Voltage, Current and
... The LTC2990 monitors voltage, current, internal and remote temperatures. It can be configured through an I2C interface to measure many combinations of these parameters. Single or repeated measurements are possible. Remote temperature measurements use a transistor as a temperature sensor, allowing th ...
... The LTC2990 monitors voltage, current, internal and remote temperatures. It can be configured through an I2C interface to measure many combinations of these parameters. Single or repeated measurements are possible. Remote temperature measurements use a transistor as a temperature sensor, allowing th ...
Resistive opto-isolator
Resistive opto-isolator (RO), also called photoresistive opto-isolator, vactrol (after a genericized trademark introduced by Vactec, Inc. in the 1960s), analog opto-isolator or lamp-coupled photocell, is an optoelectronic device consisting of a source and detector of light, which are optically coupled and electrically isolated from each other. The light source is usually a light-emitting diode (LED), a miniature incandescent lamp, or sometimes a neon lamp, whereas the detector is a semiconductor-based photoresistor made of cadmium selenide (CdSe) or cadmium sulfide (CdS). The source and detector are coupled through a transparent glue or through the air.Electrically, RO is a resistance controlled by the current flowing through the light source. In the dark state, the resistance typically exceeds a few MOhm; when illuminated, it decreases as the inverse of the light intensity. In contrast to the photodiode and phototransistor, the photoresistor can operate in both the AC and DC circuits and have a voltage of several hundred volts across it. The harmonic distortions of the output current by the RO are typically within 0.1% at voltages below 0.5 V.RO is the first and the slowest opto-isolator: its switching time exceeds 1 ms, and for the lamp-based models can reach hundreds of milliseconds. Parasitic capacitance limits the frequency range of the photoresistor by ultrasonic frequencies. Cadmium-based photoresistors exhibit a ""memory effect"": their resistance depends on the illumination history; it also drifts during the illumination and stabilizes within hours, or even weeks for high-sensitivity models. Heating induces irreversible degradation of ROs, whereas cooling to below −25 °C dramatically increases the response time. Therefore, ROs were mostly replaced in the 1970s by the faster and more stable photodiodes and photoresistors. ROs are still used in some sound equipment, guitar amplifiers and analog synthesizers owing to their good electrical isolation, low signal distortion and ease of circuit design.