A Wide-Bandwidth Si/SiGe HBT Direct Conversion Sub-Harmonic Mixer/Downconverter , Student Member, IEEE
... if the switching phases are offset by 90 . The multi-tanh input cell improves the third-order input intercept point (IIP3) of the circuit [9], at the expense of a somewhat higher noise figure. The next two Sections will analyze the performance of the mixer. A. Analysis of the Multi-Tanh Differential ...
... if the switching phases are offset by 90 . The multi-tanh input cell improves the third-order input intercept point (IIP3) of the circuit [9], at the expense of a somewhat higher noise figure. The next two Sections will analyze the performance of the mixer. A. Analysis of the Multi-Tanh Differential ...
The Use of Optocouplers in Measuring Loudspeaker Cone
... noise and ensure good temperature stability of the sensing unit, two photo-interrupters in a differential connection have been used, together with the accompanying electronic circuitry. The linearity of the sensor achieved by this design is very good, particularly for large cone displacements and lo ...
... noise and ensure good temperature stability of the sensing unit, two photo-interrupters in a differential connection have been used, together with the accompanying electronic circuitry. The linearity of the sensor achieved by this design is very good, particularly for large cone displacements and lo ...
Frequency-dependent single-phase to three
... terminals of single-phase AC power can, in effect, each‘ Phase 1=O—a Sin A _ be connected directly to a different one of the input Phase 2=2a Sin A—a. Sin A terminals in the selected load, with the voltage supply Phase 3=2a Sin (A+60°)-a Sin A to the third load input terminal being derived from the ...
... terminals of single-phase AC power can, in effect, each‘ Phase 1=O—a Sin A _ be connected directly to a different one of the input Phase 2=2a Sin A—a. Sin A terminals in the selected load, with the voltage supply Phase 3=2a Sin (A+60°)-a Sin A to the third load input terminal being derived from the ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
... The voltage stability is increasingly becoming a limiting factor in the modern power systems due to the various changes that are continuously introduced to meet ever-increasing load demand without sufficient transmission and generation enhancement. This has necessitated to employment the techniques ...
... The voltage stability is increasingly becoming a limiting factor in the modern power systems due to the various changes that are continuously introduced to meet ever-increasing load demand without sufficient transmission and generation enhancement. This has necessitated to employment the techniques ...
Start of pump systems
... It is generally possible to start a centrifugal pump direct on line against a filled system. This application is also suitable for start with reduced tappings. The torque characteristics for a centrifugal pump are well suited for start against filled systems. The power consumption is low for low flo ...
... It is generally possible to start a centrifugal pump direct on line against a filled system. This application is also suitable for start with reduced tappings. The torque characteristics for a centrifugal pump are well suited for start against filled systems. The power consumption is low for low flo ...
STC04IE170HP
... The STC04IE170HP is manufactured in Monolithic ESBT technology, aimed at providing the best performance in high frequency / high voltage applications. It is designed for use in gate driven based topologies. ...
... The STC04IE170HP is manufactured in Monolithic ESBT technology, aimed at providing the best performance in high frequency / high voltage applications. It is designed for use in gate driven based topologies. ...
A Probabilistic Approach to Power System Security Assessment
... control. Consequently, the power output of all generators under frequency control will be affected by the uncertainty. Therefore, for such generators, it becomes difficult to assess both reserve margins and ramping constraint under uncertainty. The proposed approach can provide the useful informatio ...
... control. Consequently, the power output of all generators under frequency control will be affected by the uncertainty. Therefore, for such generators, it becomes difficult to assess both reserve margins and ramping constraint under uncertainty. The proposed approach can provide the useful informatio ...
design and implementation of a low voltage low power
... voltages. However the supply voltage is lowered the performance of analogue circuits is degraded and the design of low voltage analogue Circuits This technique is very suitable for very-low power clocked and continuous time circuits such as level shifters, Opamp and comparators. Design of a 10-bit s ...
... voltages. However the supply voltage is lowered the performance of analogue circuits is degraded and the design of low voltage analogue Circuits This technique is very suitable for very-low power clocked and continuous time circuits such as level shifters, Opamp and comparators. Design of a 10-bit s ...
A low-power, blocking-capacitor-free, charge-balanced electrode-stimulator chip with less than 6nA DC error for 1mA full-scale stimulation
... handle the clinical levels of charge that are required for stimulation, which in cochlear implant users has a median maximum comfortable level around 15 nC/phase [3], the size of a typical blocking capacitor must be 100 nF or larger so that the voltage drop across the capacitor does not add apprecia ...
... handle the clinical levels of charge that are required for stimulation, which in cochlear implant users has a median maximum comfortable level around 15 nC/phase [3], the size of a typical blocking capacitor must be 100 nF or larger so that the voltage drop across the capacitor does not add apprecia ...
Programming Fun Lights With TI`s TCA6507
... 5. The TCA6507 has very low power consumption. The maximum supply current (ICC) value is 25 µA in the operating mode at 400 kHz. The standby current is 10 µA. When the I2C bus is idle, and intensity control is not used, the TCA6507 can be put into shutdown mode by setting its enable (EN) pin low. Th ...
... 5. The TCA6507 has very low power consumption. The maximum supply current (ICC) value is 25 µA in the operating mode at 400 kHz. The standby current is 10 µA. When the I2C bus is idle, and intensity control is not used, the TCA6507 can be put into shutdown mode by setting its enable (EN) pin low. Th ...
Signal Value Breadboard Description VDD 3.3V TOP “+”row Always
... The DAC module has to be driven by the FPGA through a complex state machine. This control logic has been created for you as the dactls block in the schematic dac.sch. The dactls module takes an 8-bit data and produces the necessary control to the DAC module such that the correct analog voltage appea ...
... The DAC module has to be driven by the FPGA through a complex state machine. This control logic has been created for you as the dactls block in the schematic dac.sch. The dactls module takes an 8-bit data and produces the necessary control to the DAC module such that the correct analog voltage appea ...
Application Note Designing VME Power Systems from Standard
... clamped, and must be limited with a series device. The best way to implement this is with a series pass MOSFET. The MOSFET is basically configured as a linear regulator, and regulates its output to less than 50V, which can be accepted by the DC-DC converter. An N-channel device should be chosen for ...
... clamped, and must be limited with a series device. The best way to implement this is with a series pass MOSFET. The MOSFET is basically configured as a linear regulator, and regulates its output to less than 50V, which can be accepted by the DC-DC converter. An N-channel device should be chosen for ...
Autonomous USB PD controller with integrated discharge path
... This pin must not be used to supply any external component. ...
... This pin must not be used to supply any external component. ...
Motor Control Centers
... second, or 60 hertz. Most alternators have more than two poles and one loop of wire. Alternators can have two or three pairs of electromagnetic poles, allowing the AC generator to generate voltage at 60 Hz at slower speeds. ...
... second, or 60 hertz. Most alternators have more than two poles and one loop of wire. Alternators can have two or three pairs of electromagnetic poles, allowing the AC generator to generate voltage at 60 Hz at slower speeds. ...
Formating rules
... After induction motor switching off feeding voltage vector continue to rotate with constant synchronous rotation speed. Therefore depending on switching interval duration (interval without current) feeding power and residual voltage on the induction motor terminals vectors at the moment of repeated ...
... After induction motor switching off feeding voltage vector continue to rotate with constant synchronous rotation speed. Therefore depending on switching interval duration (interval without current) feeding power and residual voltage on the induction motor terminals vectors at the moment of repeated ...
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... used by next logic block . 3) Recovery Phase: The load circuit is discharged during this phase as Power Clock ramps down to 0 value. Power Clock Supply has two fold role and used as Power Supply Signal and Clock Signal. And used to avoid need of two separate sources. During the time interval T I, th ...
... used by next logic block . 3) Recovery Phase: The load circuit is discharged during this phase as Power Clock ramps down to 0 value. Power Clock Supply has two fold role and used as Power Supply Signal and Clock Signal. And used to avoid need of two separate sources. During the time interval T I, th ...
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 ...
... 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 ...
New Double Input DC-DC Converters for
... entire energy storage unit minimized through an appropriate matching [2]. Several structures for combining batteries and ultracapacitors have been introduced in the literature [3]. Multi-input power electronic converters are the best promising choices to fully utilize the advantages of batteries and ...
... entire energy storage unit minimized through an appropriate matching [2]. Several structures for combining batteries and ultracapacitors have been introduced in the literature [3]. Multi-input power electronic converters are the best promising choices to fully utilize the advantages of batteries and ...
Transceivers_for_Passive_Optical_Networks - Indico
... Commonly the bias current is set to zero only between bursts and it is set above threshold for the duration of the burst There are designs that suggest switching the laser current off even during ‘0’s In both cases Turn-on Delay Compensation (TODC) circuitry is required Also use of a shunt transisto ...
... Commonly the bias current is set to zero only between bursts and it is set above threshold for the duration of the burst There are designs that suggest switching the laser current off even during ‘0’s In both cases Turn-on Delay Compensation (TODC) circuitry is required Also use of a shunt transisto ...
Pi Speaker Alignment Theory
... causing it to be damaged. Often times, cone travel is impaired by the loudspeaker suspension at power levels much lower than its rated maximum, so that fact must be taken into consideration. It is generally safest to assume that distortion rises dramatically between 50% and 70% of a speaker’s maximu ...
... causing it to be damaged. Often times, cone travel is impaired by the loudspeaker suspension at power levels much lower than its rated maximum, so that fact must be taken into consideration. It is generally safest to assume that distortion rises dramatically between 50% and 70% of a speaker’s maximu ...
Pulse-width modulation
Pulse-width modulation (PWM), or pulse-duration modulation (PDM), is a modulation technique used to encode a message into a pulsing signal. Although this modulation technique can be used to encode information for transmission, its main use is to allow the control of the power supplied to electrical devices, especially to inertial loads such as motors. In addition, PWM is one of the two principal algorithms used in photovoltaic solar battery chargers, the other being MPPT.The average value of voltage (and current) fed to the load is controlled by turning the switch between supply and load on and off at a fast rate. The longer the switch is on compared to the off periods, the higher the total power supplied to the load.The PWM switching frequency has to be much higher than what would affect the load (the device that uses the power), which is to say that the resultant waveform perceived by the load must be as smooth as possible. Typically switching has to be done several times a minute in an electric stove, 120 Hz in a lamp dimmer, from few kilohertz (kHz) to tens of kHz for a motor drive and well into the tens or hundreds of kHz in audio amplifiers and computer power supplies.The term duty cycle describes the proportion of 'on' time to the regular interval or 'period' of time; a low duty cycle corresponds to low power, because the power is off for most of the time. Duty cycle is expressed in percent, 100% being fully on.The main advantage of PWM is that power loss in the switching devices is very low. When a switch is off there is practically no current, and when it is on and power is being transferred to the load, there is almost no voltage drop across the switch. Power loss, being the product of voltage and current, is thus in both cases close to zero. PWM also works well with digital controls, which, because of their on/off nature, can easily set the needed duty cycle.PWM has also been used in certain communication systems where its duty cycle has been used to convey information over a communications channel.