AN2839
... (tON) and from the IC (in fast decay; from the power supply in slow decay) to the capacitor during the off time (tOFF). The RMS value of the current flowing into the bulk capacitor depends on the peak output current, output current ripple, switching frequency, duty cycle and chopping style. It also ...
... (tON) and from the IC (in fast decay; from the power supply in slow decay) to the capacitor during the off time (tOFF). The RMS value of the current flowing into the bulk capacitor depends on the peak output current, output current ripple, switching frequency, duty cycle and chopping style. It also ...
UM1078
... connector J2 (AC mains) or optionally by a direct current power supply through connector J21 (DC Bus), in which case it is required to respect the correct polarity. Stresses above the limits shown in Table 2 may cause permanent damage to the devices present inside the board. These are stress ratings ...
... connector J2 (AC mains) or optionally by a direct current power supply through connector J21 (DC Bus), in which case it is required to respect the correct polarity. Stresses above the limits shown in Table 2 may cause permanent damage to the devices present inside the board. These are stress ratings ...
FAN6224 Synchronous Rectification Controller for Flyback and Forward Freewheeling Rectification
... When the voltage scale-down ratio between LPC and RES (K) is 3.9, the discharge time of CT (tCT.DIS) is the same as inductor current discharge time (tL.DIS). However, considering the tolerance of voltage divider resistors and internal circuit, the scale-down ratio (K) should be larger than 3.9 to gu ...
... When the voltage scale-down ratio between LPC and RES (K) is 3.9, the discharge time of CT (tCT.DIS) is the same as inductor current discharge time (tL.DIS). However, considering the tolerance of voltage divider resistors and internal circuit, the scale-down ratio (K) should be larger than 3.9 to gu ...
Lab #12 - facstaff.bucknell.edu
... The design of most MOSFET amplifiers is divided into the separate tasks of biasing and smallsignal modeling. Biasing is the adjustment of the “quiescent” (average) DC voltages and currents in the circuit so that the positive and negative excursions of the applied input signal do not cause the transi ...
... The design of most MOSFET amplifiers is divided into the separate tasks of biasing and smallsignal modeling. Biasing is the adjustment of the “quiescent” (average) DC voltages and currents in the circuit so that the positive and negative excursions of the applied input signal do not cause the transi ...
A Low Voltage Low Power RF/Analog Front-end Circuit
... Cheap and adaptable, passive radio frequency identification (RFID) tags operating in ultra high frequency (UHF) band are showing a wide prospect of applications. Nowadays, technology trend for passive UHF tags is to increase the operating distance, reading rate and reading speed. Therefore, stringen ...
... Cheap and adaptable, passive radio frequency identification (RFID) tags operating in ultra high frequency (UHF) band are showing a wide prospect of applications. Nowadays, technology trend for passive UHF tags is to increase the operating distance, reading rate and reading speed. Therefore, stringen ...
TPS40090-Q1 数据资料 dataSheet 下载
... The TPS40090 is a two-, three-, or four-phase programmable synchronous buck controller that is optimized for low-voltage, high-current applications powered by a 5-V to 15-V distributed supply. A multi-phase converter offers several advantages over a single power stage including lower current ripple ...
... The TPS40090 is a two-, three-, or four-phase programmable synchronous buck controller that is optimized for low-voltage, high-current applications powered by a 5-V to 15-V distributed supply. A multi-phase converter offers several advantages over a single power stage including lower current ripple ...
Electronic Slot Car Controller Mysteries Revealed
... wanted to limit the current flowing through the resistors to about 40mA to minimize wiper arcing and, for reasons that I’ll explain shortly, wanted the current flowing through all of the resistors to be virtually equal, the base current couldn’t be more than a small fraction of a milliamp. As long t ...
... wanted to limit the current flowing through the resistors to about 40mA to minimize wiper arcing and, for reasons that I’ll explain shortly, wanted the current flowing through all of the resistors to be virtually equal, the base current couldn’t be more than a small fraction of a milliamp. As long t ...
AAT4620 数据资料DataSheet下载
... should not exceed the input supply level present on the VCC pin. The AAT4620 typically consumes 40μA when operating, when off, the device draws less then 1μA. In the off state, current is prevented from flowing between the input and output. Under-voltage lockout circuitry ensures that the VCC supply ...
... should not exceed the input supply level present on the VCC pin. The AAT4620 typically consumes 40μA when operating, when off, the device draws less then 1μA. In the off state, current is prevented from flowing between the input and output. Under-voltage lockout circuitry ensures that the VCC supply ...
4. CMOS Transistor Theory - The University of Texas at Austin
... the Source and Drain, are diffused Application of a negative gate voltage (w.r.t. source) draws holes into the region below the gate; channel changes from n to p-type (source-drain conduction path) Conduction due to holes; negative Vd sweeps holes from source (through channel) to drain ...
... the Source and Drain, are diffused Application of a negative gate voltage (w.r.t. source) draws holes into the region below the gate; channel changes from n to p-type (source-drain conduction path) Conduction due to holes; negative Vd sweeps holes from source (through channel) to drain ...
Varistors MLA Automotive Datasheet
... suppression devices is based on the Littelfuse Multilayer fabrication technology. These components are designed to suppress a variety of transient events, including those specified in IEC 61000-4-2 or other standards used for Electromagnetic Compliance (EMC). The MLA Automotive Series is typically a ...
... suppression devices is based on the Littelfuse Multilayer fabrication technology. These components are designed to suppress a variety of transient events, including those specified in IEC 61000-4-2 or other standards used for Electromagnetic Compliance (EMC). The MLA Automotive Series is typically a ...
Series Circuits
... Answer: E Justification: The potential at the positive terminal of the battery is equal to the potential at point A because there are no voltage drawing elements between the battery and A. Similarly, the potential at the negative terminal is equal to the potential at point B. If the potential differ ...
... Answer: E Justification: The potential at the positive terminal of the battery is equal to the potential at point A because there are no voltage drawing elements between the battery and A. Similarly, the potential at the negative terminal is equal to the potential at point B. If the potential differ ...
HVRA Basic Electronics Class I April 2015
... A series of basic electronics classes will be made monthly, on line, to both members and non members alike. The goal is to teach both theory and troubleshooting of vacuum tube equipment at the same time. In order to successfully troubleshoot electronic equipment, one must be able to understand basic ...
... A series of basic electronics classes will be made monthly, on line, to both members and non members alike. The goal is to teach both theory and troubleshooting of vacuum tube equipment at the same time. In order to successfully troubleshoot electronic equipment, one must be able to understand basic ...
![Low Pin Count, Low VIN [3.0V to 5.5V] Synchronous Buck DC-to](http://s1.studyres.com/store/data/006453823_1-99ea647aae0c603d083eeed480046ac6-300x300.png)
Low Pin Count, Low VIN [3.0V to 5.5V] Synchronous Buck DC-to
... During startup, both the high-side MOSFET switch and the synchronous rectifier are held in the OFF state until the internal soft start commands an output voltage higher than the voltage currently at the output. This may happen when the output is pre-biased at some voltage greater than zero and less ...
... During startup, both the high-side MOSFET switch and the synchronous rectifier are held in the OFF state until the internal soft start commands an output voltage higher than the voltage currently at the output. This may happen when the output is pre-biased at some voltage greater than zero and less ...
Current Fed Full-Bridge Converter with Voltage Doubler for
... this method, the iteration is carried out for perturbing, observing and comparing the power generation in the PV modules and the MPP is achieved [2]. In this method, there is a possibility of miscalculation for determining the perturbing and tracking direction. It also does not compare the PV array ...
... this method, the iteration is carried out for perturbing, observing and comparing the power generation in the PV modules and the MPP is achieved [2]. In this method, there is a possibility of miscalculation for determining the perturbing and tracking direction. It also does not compare the PV array ...
Lab 4: Multisim and the Oscilloscope
... Make sure the display for both channels A and B is toggled on. Adjust the two channels to have the same scale. Adjust the timebase so that we can see 2 or 3 periods of the signals. Select Single to freeze the scope so that we can work with it. Below the screen the scope displays the root-mean-square ...
... Make sure the display for both channels A and B is toggled on. Adjust the two channels to have the same scale. Adjust the timebase so that we can see 2 or 3 periods of the signals. Select Single to freeze the scope so that we can work with it. Below the screen the scope displays the root-mean-square ...
TRIAC
TRIAC, from triode for alternating current, is a genericized tradename for an electronic component that can conduct current in either direction when it is triggered (turned on), and is formally called a bidirectional triode thyristor or bilateral triode thyristor.TRIACs are a subset of thyristors and are closely related to silicon controlled rectifiers (SCR). However, unlike SCRs, which are unidirectional devices (that is, they can conduct current only in one direction), TRIACs are bidirectional and so allow current in either direction. Another difference from SCRs is that TRIAC current can be enabled by either a positive or negative current applied to its gate electrode, whereas SCRs can be triggered only by positive current into the gate. To create a triggering current, a positive or negative voltage has to be applied to the gate with respect to the MT1 terminal (otherwise known as A1).Once triggered, the device continues to conduct until the current drops below a certain threshold called the holding current.The bidirectionality makes TRIACs very convenient switches for alternating-current (AC) circuits, also allowing them to control very large power flows with milliampere-scale gate currents. In addition, applying a trigger pulse at a controlled phase angle in an AC cycle allows control of the percentage of current that flows through the TRIAC to the load (phase control), which is commonly used, for example, in controlling the speed of low-power induction motors, in dimming lamps, and in controlling AC heating resistors.