Switched-capacitor power electronics circuits
... Vo larger than Vo obt , therefore 88% is the maximum efficiency where K1 and K2 are fabrication characteristics, and VT is the in this case. But as long as the converter is designed for a lower threshold voltage of the MOSFET channel. Thus, the saturated Vo than 5.3 V, the losses do not influence th ...
... Vo larger than Vo obt , therefore 88% is the maximum efficiency where K1 and K2 are fabrication characteristics, and VT is the in this case. But as long as the converter is designed for a lower threshold voltage of the MOSFET channel. Thus, the saturated Vo than 5.3 V, the losses do not influence th ...
UC5170C 数据资料 dataSheet 下载
... Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant ...
... Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant ...
FSL117MRIN ™) Green-Mode Fairchild Power Switch (FPS FS
... However, even when the SMPS is in normal operation, the overload protection circuit can be triggered during load transition. To avoid this undesired operation, the overload protection circuit is designed to trigger only after a specified time to determine whether it is a transient situation or a tru ...
... However, even when the SMPS is in normal operation, the overload protection circuit can be triggered during load transition. To avoid this undesired operation, the overload protection circuit is designed to trigger only after a specified time to determine whether it is a transient situation or a tru ...
AN51 - Power Conditioning for Notebook and Palmtop Systems
... switch “off” time. This is a very efficient way of powering the switcher because power drain does not increase with regulator input voltage. However, the circuit is not selfstarting, so some means must be used to start the regulator. This is performed by an internal current path in the LT1432 which ...
... switch “off” time. This is a very efficient way of powering the switcher because power drain does not increase with regulator input voltage. However, the circuit is not selfstarting, so some means must be used to start the regulator. This is performed by an internal current path in the LT1432 which ...
Circuit Theory Chapter 4
... – The arrow of the current source is directed toward the positive terminal of the voltage source. – Source transformation is not possible when R = 0, which is the case with an ideal voltage source. Similarly, an ideal current source with R = ∞ cannot be replaced by a finite voltage source. ...
... – The arrow of the current source is directed toward the positive terminal of the voltage source. – Source transformation is not possible when R = 0, which is the case with an ideal voltage source. Similarly, an ideal current source with R = ∞ cannot be replaced by a finite voltage source. ...
A low-power, blocking-capacitor-free, charge-balanced electrode-stimulator chip with less than 6nA DC error for 1mA full-scale stimulation
... capacitor functions as a charge integrator in feedback, an alternative method of charge balancing by charge-metering was proposed in [8], using a switched-capacitor integrator to integrate the current transacted across a small series resistor, and feeding back finely discretized charge packets to eq ...
... capacitor functions as a charge integrator in feedback, an alternative method of charge balancing by charge-metering was proposed in [8], using a switched-capacitor integrator to integrate the current transacted across a small series resistor, and feeding back finely discretized charge packets to eq ...
VACUUM-TUBE BRIDGE
... voltages are obtained from separate transformer windings so that they are insulated from one another for direct current. This makes it possible to connect the supplies for the electrode voltages to ground potential wherethey will not increase the stray capacitances. In order that all three voltages ...
... voltages are obtained from separate transformer windings so that they are insulated from one another for direct current. This makes it possible to connect the supplies for the electrode voltages to ground potential wherethey will not increase the stray capacitances. In order that all three voltages ...
SN75ALS056 数据资料 dataSheet 下载
... Supply voltage, VCC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 V Control input voltage, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
... Supply voltage, VCC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 V Control input voltage, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
2016 C.. - CS ManTech
... by a thermal annealing. Apparently, the thermal annealing process could not remove this metal diffusion nor the notch formation along the gate edges. Thus, gate metal diffusion and notch formation on the AlGaN/GaN layer after off-state step stress or thermal annealing were not related to the degrada ...
... by a thermal annealing. Apparently, the thermal annealing process could not remove this metal diffusion nor the notch formation along the gate edges. Thus, gate metal diffusion and notch formation on the AlGaN/GaN layer after off-state step stress or thermal annealing were not related to the degrada ...
Step-Down DC-to-DC Controller ADP1821 FEATURES
... 1% accuracy, 0.6 V reference voltage All N-channel MOSFET design for low cost Fixed-frequency operation 300 kHz, 600 kHz, or synchronized operation up to 1.2 MHz No current sense resistor required Power-good output Programmable soft start with reverse current protection Soft start, thermal overload, ...
... 1% accuracy, 0.6 V reference voltage All N-channel MOSFET design for low cost Fixed-frequency operation 300 kHz, 600 kHz, or synchronized operation up to 1.2 MHz No current sense resistor required Power-good output Programmable soft start with reverse current protection Soft start, thermal overload, ...
LF155/LF156/LF157 Series Monolithic JFET Input Operational Amplifiers LF155/LF156/LF157 General Description
... and VOS, IB and IOS are measured at VCM e 0. Note 4: The Temperature Coefficient of the adjusted input offset voltage changes only a small amount (0.5mV/§ C typically) for each mV of adjustment from its original unadjusted value. Common-mode rejection and open loop voltage gain are also unaffected b ...
... and VOS, IB and IOS are measured at VCM e 0. Note 4: The Temperature Coefficient of the adjusted input offset voltage changes only a small amount (0.5mV/§ C typically) for each mV of adjustment from its original unadjusted value. Common-mode rejection and open loop voltage gain are also unaffected b ...
AN2349
... Discontinuous Conduction mode. This is the most simple and cost-effective solution for 220V and 120V mains and low\medium power. Figure 4. ...
... Discontinuous Conduction mode. This is the most simple and cost-effective solution for 220V and 120V mains and low\medium power. Figure 4. ...
SI98-02 - Semtech
... tions applications, the threat of lightning & static discharge requires both transmit & receive line pairs to be protected (Figure 3). The devices are connected in a low capacitance configuration. Two devices are required to provide bidirectional protection. Pin 1 of the first device is connected to ...
... tions applications, the threat of lightning & static discharge requires both transmit & receive line pairs to be protected (Figure 3). The devices are connected in a low capacitance configuration. Two devices are required to provide bidirectional protection. Pin 1 of the first device is connected to ...
UNIT 4 BASIC CIRCUIT DESIGN CONCEPTS
... • Final expression we may deduce that: τr / τf = ßn / ßp • Raise time is slower by factor of 2.5 when both ‘n’ and ‘p’ are in same size • In order to achive symmetrical operation need to make Wp=2.5 Wn • The factors which affect rise-time and fall-time as follows: 1) τr and τf are proportional to 1/ ...
... • Final expression we may deduce that: τr / τf = ßn / ßp • Raise time is slower by factor of 2.5 when both ‘n’ and ‘p’ are in same size • In order to achive symmetrical operation need to make Wp=2.5 Wn • The factors which affect rise-time and fall-time as follows: 1) τr and τf are proportional to 1/ ...
MAX860/MAX861 50mA, Frequency-Selectable, Switched-Capacitor Voltage Converters _______________General Description
... 50mA output makes switching regulators unnecessary, eliminating inductors and their associated cost, size, and EMI. Greater than 90% efficiency over most of the load-current range, combined with a typical operating current of only 200µA (MAX860), provides ideal performance for both battery-powered a ...
... 50mA output makes switching regulators unnecessary, eliminating inductors and their associated cost, size, and EMI. Greater than 90% efficiency over most of the load-current range, combined with a typical operating current of only 200µA (MAX860), provides ideal performance for both battery-powered a ...
MAX1760/MAX1760H 0.8A, Low-Noise, 1MHz, Step-Up DC-DC Converter General Description
... MOSFET, P-channel synchronous rectifier, precision reference, and shutdown control (Figure 1). The DC-DC converter boosts a 1-cell to 3-cell battery voltage input to a fixed 3.3V or adjustable voltage between 2.5V and 5.5V. An external Schottky diode is required for output voltages greater than 4V. ...
... MOSFET, P-channel synchronous rectifier, precision reference, and shutdown control (Figure 1). The DC-DC converter boosts a 1-cell to 3-cell battery voltage input to a fixed 3.3V or adjustable voltage between 2.5V and 5.5V. An external Schottky diode is required for output voltages greater than 4V. ...
MAX1482/MAX1483 20µA, ⁄ -Unit-Load, Slew-Rate-Limited
... A low-power shutdown mode is initiated by bringing RE high and DE low. The devices will not shut down unless both the driver and receiver are disabled. In shutdown, the devices typically draw only 0.1µA of supply current. RE and DE may be driven simultaneously; the parts are guaranteed not to enter ...
... A low-power shutdown mode is initiated by bringing RE high and DE low. The devices will not shut down unless both the driver and receiver are disabled. In shutdown, the devices typically draw only 0.1µA of supply current. RE and DE may be driven simultaneously; the parts are guaranteed not to enter ...
FAN7930C Critical Conduction Mode PFC Controller
... the inverting and non-inverting input of the amplifier. To cancel down the line input voltage effect on power factor correction, the effective control response of the PFC block should be slower than the line frequency and this conflicts with the transient response of controller. Twopole one-zero typ ...
... the inverting and non-inverting input of the amplifier. To cancel down the line input voltage effect on power factor correction, the effective control response of the PFC block should be slower than the line frequency and this conflicts with the transient response of controller. Twopole one-zero typ ...