Using PowerPhase MOSFETs in Synchronous Buck VR Applications
... damping in low side MOSFET gate driver loop. This additional small gate resistor will have little impact on switching loss of synchronous low side MOSFET, but a huge increase in di/dt shoot−through immunity (Figure 14). In multiphase controller using discrete MOSFETs, gate routing inductances, LG, a ...
... damping in low side MOSFET gate driver loop. This additional small gate resistor will have little impact on switching loss of synchronous low side MOSFET, but a huge increase in di/dt shoot−through immunity (Figure 14). In multiphase controller using discrete MOSFETs, gate routing inductances, LG, a ...
Chaos rules! Chapter 20
... J. C. G. Lesurf – Information and Measurement Given n-bit storage patterns we can only store 2n patterns of information (or states). As a result, if we drive the shift register with a shift clock whose period is T we find that the output pattern must repeat after a time of, at most, T 0 = 2n T . Th ...
... J. C. G. Lesurf – Information and Measurement Given n-bit storage patterns we can only store 2n patterns of information (or states). As a result, if we drive the shift register with a shift clock whose period is T we find that the output pattern must repeat after a time of, at most, T 0 = 2n T . Th ...
J.W. Phinney, D.J. Perreault, and J.H. Lang, Radio-Frequency Inverters with Transmission-Line Input Networks, 2006 IEEE Power Electronics Specialists Conference , Jeju, Korea, June 2006, pp. 3211-3219.
... band) will be deferred to Section IV-B. The input line is a 135.5-inch section of RG-58/U, a quarter wavelength at 13.61 MHz. It is terminated at the dc source with 3 silvermica snubber capacitors which are self-resonant near the switching fundamental and its fourth harmonic. Without this ac short, ...
... band) will be deferred to Section IV-B. The input line is a 135.5-inch section of RG-58/U, a quarter wavelength at 13.61 MHz. It is terminated at the dc source with 3 silvermica snubber capacitors which are self-resonant near the switching fundamental and its fourth harmonic. Without this ac short, ...
AN-7502 Power MOSFET Switching Waveforms: A New
... smaller voltage thanks to the grounded gate JFET. Since the interaction of RL with the device capacitances has a secondorder effect on the drain voltage, the equivalent circuit of Figure 7 predicts a drain voltage change of: dVG/dt = gMRLlG/[CGS + CX(1 + gM/gMJ)] In all but the smallest power-MOSFET ...
... smaller voltage thanks to the grounded gate JFET. Since the interaction of RL with the device capacitances has a secondorder effect on the drain voltage, the equivalent circuit of Figure 7 predicts a drain voltage change of: dVG/dt = gMRLlG/[CGS + CX(1 + gM/gMJ)] In all but the smallest power-MOSFET ...
MAX17498A/MAX17498B/MAX17498C AC-DC and DC-DC Peak Current-Mode Converters for Flyback/Boost Applications
... AC to 265V AC) applications, while the MAX17498B/ MAX17498C support UVLO thresholds suitable to lowvoltage DC-DC applications. The switching frequency of the MAX17498A/MAX17498C is 250kHz, while that of the MAX17498B is 500kHz. These frequencies allow the use of tiny magnetic and filter components, ...
... AC to 265V AC) applications, while the MAX17498B/ MAX17498C support UVLO thresholds suitable to lowvoltage DC-DC applications. The switching frequency of the MAX17498A/MAX17498C is 250kHz, while that of the MAX17498B is 500kHz. These frequencies allow the use of tiny magnetic and filter components, ...
SLUS746 120-V Boot, 3-A Peak, High Frequency, High
... MOSFET drivers include a 120-V bootstrap diode and high-side/low-side driver with independent inputs for maximum control flexibility. This allows for N-Channel MOSFET control in half-bridge, full-bridge, two-switch forward and active clamp forward converters. The low-side and the high-side gate driv ...
... MOSFET drivers include a 120-V bootstrap diode and high-side/low-side driver with independent inputs for maximum control flexibility. This allows for N-Channel MOSFET control in half-bridge, full-bridge, two-switch forward and active clamp forward converters. The low-side and the high-side gate driv ...
IGBT Tutorial
... driving a wide base PNP bipolar transistor in a Darlington configuration. The second circuit simply shows a diode in series with the drain of an N-channel power MOSFET. At first glance, it would seem that the on state voltage across the IGBT would be one diode drop higher than for the N-channel powe ...
... driving a wide base PNP bipolar transistor in a Darlington configuration. The second circuit simply shows a diode in series with the drain of an N-channel power MOSFET. At first glance, it would seem that the on state voltage across the IGBT would be one diode drop higher than for the N-channel powe ...
D.C. GENERATOR
... Shunt-The field coil is connected in parallel with the armature Series-The field coil is connected in series with the armature Compound-It has two field coils; one is connected in series with armature and the other is connected in parallel with the armature Differential Compound-In this case the ser ...
... Shunt-The field coil is connected in parallel with the armature Series-The field coil is connected in series with the armature Compound-It has two field coils; one is connected in series with armature and the other is connected in parallel with the armature Differential Compound-In this case the ser ...
MAX1761 Small, Dual, High-Efficiency Buck Controller for Notebooks General Description
... Note 2: If V+ is less than 5V, V+ must be connected to VL. If VL is connected to V+, V+ must be between 4.5V and 5.5V. Note 3: DC output accuracy specifications refer to the trip-level error of the error amplifier. The output voltage will have a DC regulation higher than the trip level by 50% of the ...
... Note 2: If V+ is less than 5V, V+ must be connected to VL. If VL is connected to V+, V+ must be between 4.5V and 5.5V. Note 3: DC output accuracy specifications refer to the trip-level error of the error amplifier. The output voltage will have a DC regulation higher than the trip level by 50% of the ...
Homework based on The Membrane Tutorial
... A simple experiment: How would the membrane voltage change if we applied a smaller current pulse? Change the amplitude of the current pulse to 1 nA (Stimulus Control panel). Before you Reset & Run, set the plotting windows to save the original results while running the new simulation. Find the Keep ...
... A simple experiment: How would the membrane voltage change if we applied a smaller current pulse? Change the amplitude of the current pulse to 1 nA (Stimulus Control panel). Before you Reset & Run, set the plotting windows to save the original results while running the new simulation. Find the Keep ...
An Improved Deadbeat Control for UPS Using Disturbance Observers
... Abstract—A digital control technique for the inverter stage of uninterruptible power supplies is proposed, which is based on a predictive regulator on both output voltage and inductor current. Its aim is to achieve a deadbeat dynamic response for the controlled variables (output voltage and inverter ...
... Abstract—A digital control technique for the inverter stage of uninterruptible power supplies is proposed, which is based on a predictive regulator on both output voltage and inductor current. Its aim is to achieve a deadbeat dynamic response for the controlled variables (output voltage and inverter ...
high speed low power multi–threshold voltage flip flops
... High-speed operations with low power dissipation is becoming a critical factor in the modern design of several electronic components, especially in portable and handheld devices [1]. Examples of these devices include mobile telephones, hearing-aid devices and palmtops, which are novel multimedia gad ...
... High-speed operations with low power dissipation is becoming a critical factor in the modern design of several electronic components, especially in portable and handheld devices [1]. Examples of these devices include mobile telephones, hearing-aid devices and palmtops, which are novel multimedia gad ...
High-Precision, Low-Noise, Rail-to-Rail Output
... input bias current. The rail-to-rail output swing and input range that includes V– allow designers to take advantage of the low-noise characteristics of JFET amplifiers while also interfacing to modern, singlesupply, precision analog-to-digital converters (ADCs) and digital-to-analog converters (DAC ...
... input bias current. The rail-to-rail output swing and input range that includes V– allow designers to take advantage of the low-noise characteristics of JFET amplifiers while also interfacing to modern, singlesupply, precision analog-to-digital converters (ADCs) and digital-to-analog converters (DAC ...
RF MEMS Charge Pump
... The charge pump is a high impedance device which is sensitive to leakage paths between leads that can be caused by flux residue. For this reason, the solder mask should be open only where solder will actually be applied when mounting the TT6820QFN. It is essential that no conductive flux residue be ...
... The charge pump is a high impedance device which is sensitive to leakage paths between leads that can be caused by flux residue. For this reason, the solder mask should be open only where solder will actually be applied when mounting the TT6820QFN. It is essential that no conductive flux residue be ...
A Breakdown Voltage Multiplier for High Voltage Swing Drivers
... ECENTLY, there has been a great deal of interest in silicon-based high-speed integrated circuits for wireline communications due to cost advantages and integration prospects. While most of the building blocks in a fiber optics transceiver have been implemented and demonstrated in silicon at 10 Gb/s ...
... ECENTLY, there has been a great deal of interest in silicon-based high-speed integrated circuits for wireline communications due to cost advantages and integration prospects. While most of the building blocks in a fiber optics transceiver have been implemented and demonstrated in silicon at 10 Gb/s ...
15_rev_final
... parts of the winding. There are, at least, two options to quench a magnet in simulations. First, one can simulate an additional heat input to some volume. This could, however, mean that in order to keep the volume small (length few mm of cable), one might need to increase the local temperature to as ...
... parts of the winding. There are, at least, two options to quench a magnet in simulations. First, one can simulate an additional heat input to some volume. This could, however, mean that in order to keep the volume small (length few mm of cable), one might need to increase the local temperature to as ...
General Description Features
... high-performance average current-mode PWM controllers for high-power and high-brightness LEDs (HB LEDs). The average current-mode control technique offers inherently stable operation, reduces component derating and size by accurately controlling the inductor current. The devices achieve high efficie ...
... high-performance average current-mode PWM controllers for high-power and high-brightness LEDs (HB LEDs). The average current-mode control technique offers inherently stable operation, reduces component derating and size by accurately controlling the inductor current. The devices achieve high efficie ...
FAN6749 Highly Integrated Ultra Green-Mode PWM Controller Features
... FAN6749 modulates the PWM frequency as a function of the FB voltage to improve the medium- and light-load efficiency, as shown in Figure 25. Since the output power is proportional to the FB voltage in current mode control, the switching frequency decreases as load decreases. In heavy-load conditions ...
... FAN6749 modulates the PWM frequency as a function of the FB voltage to improve the medium- and light-load efficiency, as shown in Figure 25. Since the output power is proportional to the FB voltage in current mode control, the switching frequency decreases as load decreases. In heavy-load conditions ...
UNIT I
... • Ic increases with temperature & there is no control over it • Hence there is poor thermal stability Ic = Ib • Hence Ic depends on • may change from transistor to transistor • This will shift the operating point ...
... • Ic increases with temperature & there is no control over it • Hence there is poor thermal stability Ic = Ib • Hence Ic depends on • may change from transistor to transistor • This will shift the operating point ...
LM317K Datasheet
... Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is intended to be functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electric ...
... Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is intended to be functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electric ...
Current source
A current source is an electronic circuit that delivers or absorbs an electric current which is independent of the voltage across it.A current source is the dual of a voltage source. The term constant-current 'sink' is sometimes used for sources fed from a negative voltage supply. Figure 1 shows the schematic symbol for an ideal current source, driving a resistor load. There are two types - an independent current source (or sink) delivers a constant current. A dependent current source delivers a current which is proportional to some other voltage or current in the circuit.