The Reverse Behavior of the NPT-IGBT in its On-State 1
... equation 4. That is why further simplifications are possible. A look at equations 7 - 10 shows that the time constant given by equations 7 and 9 is much larger than the same given by equations 8 and 10 for an actual device. This means that a small change of the stored charge occurs in the base until ...
... equation 4. That is why further simplifications are possible. A look at equations 7 - 10 shows that the time constant given by equations 7 and 9 is much larger than the same given by equations 8 and 10 for an actual device. This means that a small change of the stored charge occurs in the base until ...
BQ24640 数据资料 dataSheet 下载
... Must have a series resistor between output to VFB if output voltage is expected to be greater than 16V. Usually the resistor divider top resistor will take care of this. Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings onl ...
... Must have a series resistor between output to VFB if output voltage is expected to be greater than 16V. Usually the resistor divider top resistor will take care of this. Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings onl ...
LTC3414 - 4A, 4MHz, Monolithic Synchronous Step-Down Regulator
... Connecting the SYNC/MODE pin to a voltage in the range of 0V to 1V enables Burst Mode operation. In Burst Mode operation, the internal power MOSFETs operate intermittently at light loads. This increases efficiency by minimizing switching losses. During Burst Mode operation, the minimum peak inductor ...
... Connecting the SYNC/MODE pin to a voltage in the range of 0V to 1V enables Burst Mode operation. In Burst Mode operation, the internal power MOSFETs operate intermittently at light loads. This increases efficiency by minimizing switching losses. During Burst Mode operation, the minimum peak inductor ...
AD8698
... The use of the snubber network does not recover the loss of bandwidth incurred by the load capacitance. The AD8698 maintains a unity gain bandwidth of 1 MHz with load capacitances of up to 1 nF. ...
... The use of the snubber network does not recover the loss of bandwidth incurred by the load capacitance. The AD8698 maintains a unity gain bandwidth of 1 MHz with load capacitances of up to 1 nF. ...
LM2937 - Solarbotics.net
... It is important to note that for most capacitors, ESR is specified only at room temperature. However, the designer must ensure that the ESR will stay inside the limits shown over the entire operating temperature range for the design. For aluminum electrolytic capacitors, ESR will increase by about 3 ...
... It is important to note that for most capacitors, ESR is specified only at room temperature. However, the designer must ensure that the ESR will stay inside the limits shown over the entire operating temperature range for the design. For aluminum electrolytic capacitors, ESR will increase by about 3 ...
1. Introduction: 2. Power Supply : Theory of Operation
... Each power supply consists of four phase controlled half-wave converters. Each of the two half-wave converters are connected through interphasing transformers to obtain a full-wave bridge with 120"conduction. The input voltage for these two half-wave bridges are 60' apart. In order to obtain the hig ...
... Each power supply consists of four phase controlled half-wave converters. Each of the two half-wave converters are connected through interphasing transformers to obtain a full-wave bridge with 120"conduction. The input voltage for these two half-wave bridges are 60' apart. In order to obtain the hig ...
Ohm`s Law - Parts 1 and 2
... order for it to be measured. If you use your finger to trace the path of a charge in Fig. 3.4(b) after it leaves the power supply, you will see that it must go through both the resistor and the ammeter. In contrast, tracing the path of a charge in Fig. 3.4(a) you will see that it has two “parallel” p ...
... order for it to be measured. If you use your finger to trace the path of a charge in Fig. 3.4(b) after it leaves the power supply, you will see that it must go through both the resistor and the ammeter. In contrast, tracing the path of a charge in Fig. 3.4(a) you will see that it has two “parallel” p ...
Component4 - Glow Blogs
... 4. A kettle and a toaster use the same double socket. If the kettle draws a current of 10 A and the toaster 3 A, find the power used by each of the appliances. The two sockets are wired in parallel to a 230 V supply. 5. An electric drill draws a current of 1.5 amps from a 110 volt supply. Calculate ...
... 4. A kettle and a toaster use the same double socket. If the kettle draws a current of 10 A and the toaster 3 A, find the power used by each of the appliances. The two sockets are wired in parallel to a 230 V supply. 5. An electric drill draws a current of 1.5 amps from a 110 volt supply. Calculate ...
Buck Converter Design
... capacitance (hence high switching loss). Thus the MOSFET that is chosen should be a compromise between these two characteristics. In addition, high current MOSFETs tend to come in much larger packages, so meeting the ideals of low ON resistance and low Qg might violate a space requirement spec, so ...
... capacitance (hence high switching loss). Thus the MOSFET that is chosen should be a compromise between these two characteristics. In addition, high current MOSFETs tend to come in much larger packages, so meeting the ideals of low ON resistance and low Qg might violate a space requirement spec, so ...
instructions for authors - Electrical and Computer Engineering
... inductive-load mitigation technique is now in service in HydroQuébec’s Deschambault substation. Keywords: Ferroresonance, mitigation, transformer. ...
... inductive-load mitigation technique is now in service in HydroQuébec’s Deschambault substation. Keywords: Ferroresonance, mitigation, transformer. ...
Basic Concepts
... Thus, a capacitor is an open circuit to dc. If, however, a dc voltage is suddenly connected across a capacitor, the capacitor begins to charge (store energy). 2. The voltage across a capacitor must be continuous, since a jump (a discontinuity) change in the voltage would require an infinite current, ...
... Thus, a capacitor is an open circuit to dc. If, however, a dc voltage is suddenly connected across a capacitor, the capacitor begins to charge (store energy). 2. The voltage across a capacitor must be continuous, since a jump (a discontinuity) change in the voltage would require an infinite current, ...
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.