FAN23SV65 TinyBuck™ 15 A Integrated Synchronous Buck Regulator F AN2
... The modulator provides a minimum off-time (tOFF-MIN) of 320 ns to provide a guaranteed interval for low-side MOSFET (LS) current sensing and PFM operation. tOFFMIN is also used to provide stability against multiple pulsing and limits maximum switching frequency during transient events. ...
... The modulator provides a minimum off-time (tOFF-MIN) of 320 ns to provide a guaranteed interval for low-side MOSFET (LS) current sensing and PFM operation. tOFFMIN is also used to provide stability against multiple pulsing and limits maximum switching frequency during transient events. ...
ITtestPapers.com
... 9. There was a RC circuit given with AC voltage source. Expression for capacitance was asked for charging condition. Choices were somewhat like this: a) some value multiplied by exp (-t/T) ans --c i= (Vs/R)exp(-t/ T) 10.SCR s are connected in series to get a) high current rating b) voltage regulatio ...
... 9. There was a RC circuit given with AC voltage source. Expression for capacitance was asked for charging condition. Choices were somewhat like this: a) some value multiplied by exp (-t/T) ans --c i= (Vs/R)exp(-t/ T) 10.SCR s are connected in series to get a) high current rating b) voltage regulatio ...
FSTU32160 16-Bit to 32-Bit Multiplexer/Demultiplexer Bus Switch with 2V Undershoot Protection
... ■ Slower Output Enable times prevent signal disruption ...
... ■ Slower Output Enable times prevent signal disruption ...
FSD146MRBN Green-Mode Fairchild Power Switch (FPS™) FSD14
... as the load current exceeding its normal level due to an unexpected abnormal event. In this situation, the protection circuit should trigger to protect the SMPS. However, in normal operation, the overload protection circuit can be triggered during the load transition. To avoid this undesired operati ...
... as the load current exceeding its normal level due to an unexpected abnormal event. In this situation, the protection circuit should trigger to protect the SMPS. However, in normal operation, the overload protection circuit can be triggered during the load transition. To avoid this undesired operati ...
The JFET - W. Marshall Leach, Jr.
... The discussion here applies to the n-channel JFET. The equations apply to the p-channel device if the subscripts for the voltage between any two of the device terminals are reversed, e.g. vGS becomes vSG . The JFET must be biased with the gate-source junction reverse biased to prevent the flow of ga ...
... The discussion here applies to the n-channel JFET. The equations apply to the p-channel device if the subscripts for the voltage between any two of the device terminals are reversed, e.g. vGS becomes vSG . The JFET must be biased with the gate-source junction reverse biased to prevent the flow of ga ...
TSM9938F - Silicon Labs
... and to keep the physical size of RSENSE small. If the external RSENSE is allowed to dissipate significant power, then its inherent temperature coefficient may alter its design center value, thereby reducing load current measurement accuracy. Precisely because the TSM9938F’s input stage was designed ...
... and to keep the physical size of RSENSE small. If the external RSENSE is allowed to dissipate significant power, then its inherent temperature coefficient may alter its design center value, thereby reducing load current measurement accuracy. Precisely because the TSM9938F’s input stage was designed ...
Design Solutions 10 - Active Voltage Positioning Reduces Output Capacitors
... to the load, with a ±6% (±90mV) transient window. For the first case, consider a classic converter with perfect DC regulation. Use a 10A load step with a slew rate of 100A/ µs. The initial voltage spike will be determined solely by the output capacitor’s equivalent series resistance (ESR) and induct ...
... to the load, with a ±6% (±90mV) transient window. For the first case, consider a classic converter with perfect DC regulation. Use a 10A load step with a slew rate of 100A/ µs. The initial voltage spike will be determined solely by the output capacitor’s equivalent series resistance (ESR) and induct ...
Circuit Elements
... • We often think of a battery as being a voltage source. For many situations, this is fine. Other times it is not a good model. A real battery will have different voltages across its terminals in some cases, such as when it is supplying a large amount of current. As we have said, a voltage source sh ...
... • We often think of a battery as being a voltage source. For many situations, this is fine. Other times it is not a good model. A real battery will have different voltages across its terminals in some cases, such as when it is supplying a large amount of current. As we have said, a voltage source sh ...
IGC18T120T8Q High Speed IGBT in Trench and Fieldstop Technology
... Subjects (major changes since last revision) ...
... Subjects (major changes since last revision) ...
MAX1698/MAX1698A High-Efficiency Step-Up Current Regulator for LEDs General Description
... The requirements of the input capacitor depend on the type of the input voltage source. However, in many applications, the same capacitor type and value are used for both the input and output capacitors. ...
... The requirements of the input capacitor depend on the type of the input voltage source. However, in many applications, the same capacitor type and value are used for both the input and output capacitors. ...
Phys 345 Electronics for Scientists
... • Semiconductor device • First Active circuit element - gain > 1 • Discuss the Bipolar Junction Transistor only • See Simpson Chapter 5 for more detail. ...
... • Semiconductor device • First Active circuit element - gain > 1 • Discuss the Bipolar Junction Transistor only • See Simpson Chapter 5 for more detail. ...
document
... is not accurate enough; ii) in the linear region, Ids is no longer proportional to (Vgs − Vth − 12 Vds ). In fact the 21 should be replaced by a factor which depends on Vgs − Vth ; iii) the cutoff current can not be ignored any more. Simulation results show that when Vgs is smaller than Vth by a sma ...
... is not accurate enough; ii) in the linear region, Ids is no longer proportional to (Vgs − Vth − 12 Vds ). In fact the 21 should be replaced by a factor which depends on Vgs − Vth ; iii) the cutoff current can not be ignored any more. Simulation results show that when Vgs is smaller than Vth by a sma ...
BDTIC ICE2QS02G Quasi-Resonant PWM Controller
... The voltage vZC is also used for the output overvoltage protection. Once the voltage at this pin is higher than the threshold VZCOVP (4.5V) during off-time of the main switch, the IC is latched off after a fixed blanking time (tZCOVP). To achieve the switch-on at minimum value of drainsource voltage ...
... The voltage vZC is also used for the output overvoltage protection. Once the voltage at this pin is higher than the threshold VZCOVP (4.5V) during off-time of the main switch, the IC is latched off after a fixed blanking time (tZCOVP). To achieve the switch-on at minimum value of drainsource voltage ...
Hysteresis and charge trapping in graphene quantum dots Hemen
... moisture on graphene and reported a sharp increase in the mobility of graphene when exposed to ambience.Theyattributed this effect to the adsorption of moisture to graphene edges and the surrounding SiO2 substrate. Schedinetal.11have also reported on the reversible adsorption of water, which decreas ...
... moisture on graphene and reported a sharp increase in the mobility of graphene when exposed to ambience.Theyattributed this effect to the adsorption of moisture to graphene edges and the surrounding SiO2 substrate. Schedinetal.11have also reported on the reversible adsorption of water, which decreas ...
Current and Resistance (6/30)
... Figure 25.3 at the right shows the positive charges moving in the direction of the electric field. ...
... Figure 25.3 at the right shows the positive charges moving in the direction of the electric field. ...
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.