Circuit Techniques for On-Chip Clocking and Synchronization Behzad Mesgarzadeh
... Today’s microprocessors with millions of transistors perform high-complexity computing at multi-gigahertz clock frequencies. The ever-increasing chip size and speed call for new methodologies in clock distribution network. Conventional global synchronization techniques exhibit many drawbacks in the ...
... Today’s microprocessors with millions of transistors perform high-complexity computing at multi-gigahertz clock frequencies. The ever-increasing chip size and speed call for new methodologies in clock distribution network. Conventional global synchronization techniques exhibit many drawbacks in the ...
Understanding Adjustable Speed Drive Common
... to the reflected wave phenomenon, fast rise times and peak voltages. While many users are familiar with differential mode voltages, common mode voltages created by PWM inverters are less familiar. Problems associated with common mode voltages can include erratic behavior of the controller resulting ...
... to the reflected wave phenomenon, fast rise times and peak voltages. While many users are familiar with differential mode voltages, common mode voltages created by PWM inverters are less familiar. Problems associated with common mode voltages can include erratic behavior of the controller resulting ...
MAX8550/MAX8551 Integrated DDR Power-Supply Solutions for Desktops, Notebooks, and Graphic Cards General Description
... The PWM controller in the MAX8550/MAX8551 utilizes Maxim’s proprietary Quick-PWM™ architecture with programmable switching frequencies of up to 600kHz. This control scheme handles wide input/output voltage ratios with ease and provides 100ns response to load transients while maintaining high efficie ...
... The PWM controller in the MAX8550/MAX8551 utilizes Maxim’s proprietary Quick-PWM™ architecture with programmable switching frequencies of up to 600kHz. This control scheme handles wide input/output voltage ratios with ease and provides 100ns response to load transients while maintaining high efficie ...
LM5118, LM5118-Q1 Wide Voltage Range Buck
... The internal oscillator frequency is set with a single resistor between this pin and the AGND pin. The recommended frequency range is 50 kHz to 500 kHz. ...
... The internal oscillator frequency is set with a single resistor between this pin and the AGND pin. The recommended frequency range is 50 kHz to 500 kHz. ...
cpw paper
... Due to size limitations, most of the RF chokes in RF circuits are implemented as off-chip components. When we look at our example of a transmission line based RF choke at 5 GHz, the main concern is the size of the transmission line. If we use a coplanar waveguide (CPW) as the transmission line, CPW ...
... Due to size limitations, most of the RF chokes in RF circuits are implemented as off-chip components. When we look at our example of a transmission line based RF choke at 5 GHz, the main concern is the size of the transmission line. If we use a coplanar waveguide (CPW) as the transmission line, CPW ...
MAX8744A/MAX8745A High-Efficiency, Quad-Output, Main Power- Supply Controllers for Notebook Computers General Description
... operation with optimal interleaving minimizes input ripple current from the lowest input voltages up to the 26V maximum input. Optimal 40/60 interleaving allows the input voltage to go down to 8.3V before duty-cycle overlap occurs, compared to 180° out-of-phase regulators where the duty-cycle overla ...
... operation with optimal interleaving minimizes input ripple current from the lowest input voltages up to the 26V maximum input. Optimal 40/60 interleaving allows the input voltage to go down to 8.3V before duty-cycle overlap occurs, compared to 180° out-of-phase regulators where the duty-cycle overla ...
MAX8744/MAX8745 High-Efficiency, Quad-Output, Main Power- Supply Controllers for Notebook Computers General Description
... generation in battery-powered systems. Fixed-frequency operation with optimal interleaving minimizes input ripple current from the lowest input voltages up to the 26V maximum input. Optimal 40/60 interleaving allows the input voltage to go down to 8.3V before duty-cycle overlap occurs, compared to 1 ...
... generation in battery-powered systems. Fixed-frequency operation with optimal interleaving minimizes input ripple current from the lowest input voltages up to the 26V maximum input. Optimal 40/60 interleaving allows the input voltage to go down to 8.3V before duty-cycle overlap occurs, compared to 1 ...
LCR Measurement Primer
... Reactance comes in two types, inductive and capacitive. The reactance of an inductive element is L, where L is its inductance and = 2πf (where f = frequency). The reactance of a capacitive element is negative, -1/ C, where C is its capacitance. The negative sign occurs because the impedance of a pur ...
... Reactance comes in two types, inductive and capacitive. The reactance of an inductive element is L, where L is its inductance and = 2πf (where f = frequency). The reactance of a capacitive element is negative, -1/ C, where C is its capacitance. The negative sign occurs because the impedance of a pur ...
MAX17480 AMD 2-/3-Output Mobile Serial VID Controller General Description
... The MAX17480 is a triple-output, step-down, fixedfrequency controller for AMD’s serial VID interface (SVI) CPU and northbridge (NB) core supplies. The MAX17480 consists of two high-current SMPSs for the CPU cores and one 4A internal switch SMPS for the NB core. The two CPU core SMPSs run 180° out-of ...
... The MAX17480 is a triple-output, step-down, fixedfrequency controller for AMD’s serial VID interface (SVI) CPU and northbridge (NB) core supplies. The MAX17480 consists of two high-current SMPSs for the CPU cores and one 4A internal switch SMPS for the NB core. The two CPU core SMPSs run 180° out-of ...
MAX8550A Integrated DDR Power-Supply Solution for General Description Features
... The PWM controller in the MAX8550A utilizes Maxim’s proprietary Quick-PWM™ architecture with programmable switching frequencies of up to 600kHz. This control scheme handles wide input/output voltage ratios with ease and provides 100ns response to load transients while maintaining high efficiency and ...
... The PWM controller in the MAX8550A utilizes Maxim’s proprietary Quick-PWM™ architecture with programmable switching frequencies of up to 600kHz. This control scheme handles wide input/output voltage ratios with ease and provides 100ns response to load transients while maintaining high efficiency and ...
RECENT PROBLEMS EXPERIENCED WITH MOTOR AND GENERATOR WINDINGS
... A problem similar to loose coils in the slot is called vibration sparking (or sometimes spark erosion). For vibration sparking to occur, the coil must be loose in the slot (and thus be conventional winding rather than being GVPI). However, a manufacturer must also make the semicon in the slot too-co ...
... A problem similar to loose coils in the slot is called vibration sparking (or sometimes spark erosion). For vibration sparking to occur, the coil must be loose in the slot (and thus be conventional winding rather than being GVPI). However, a manufacturer must also make the semicon in the slot too-co ...
estimation of parameters of multi-port equivalent scheme for
... needs accordingly six parameters: three leakage inductances, one common magnetizing inductance and two winding ratios, recalculating the differentparameters to a reference winding. So, six independent inductances can be uniquely represented by six parameters of the equivalent scheme.In case of four ...
... needs accordingly six parameters: three leakage inductances, one common magnetizing inductance and two winding ratios, recalculating the differentparameters to a reference winding. So, six independent inductances can be uniquely represented by six parameters of the equivalent scheme.In case of four ...
Inductor
An inductor, also called a coil or reactor, is a passive two-terminal electrical component which resists changes in electric current passing through it. It consists of a conductor such as a wire, usually wound into a coil. When a current flows through it, energy is stored temporarily in a magnetic field in the coil. When the current flowing through an inductor changes, the time-varying magnetic field induces a voltage in the conductor, according to Faraday’s law of electromagnetic induction, According to Lenz's law the direction of induced e.m.f is always such that it opposes the change in current that created it. As a result, inductors always oppose a change in current, in the same way that a flywheel oppose a change in rotational velocity. Care should be taken not to confuse this with the resistance provided by a resistor.An inductor is characterized by its inductance, the ratio of the voltage to the rate of change of current, which has units of henries (H). Inductors have values that typically range from 1 µH (10−6H) to 1 H. Many inductors have a magnetic core made of iron or ferrite inside the coil, which serves to increase the magnetic field and thus the inductance. Along with capacitors and resistors, inductors are one of the three passive linear circuit elements that make up electric circuits. Inductors are widely used in alternating current (AC) electronic equipment, particularly in radio equipment. They are used to block AC while allowing DC to pass; inductors designed for this purpose are called chokes. They are also used in electronic filters to separate signals of different frequencies, and in combination with capacitors to make tuned circuits, used to tune radio and TV receivers.