AN2528
... Let's have a closer look at the very simple base drive network used in this application. Normally in applications such SMPS, where the load is variable, the collector current varies as well. It is very important to provide a base current to the device that is correlated with the collector current in ...
... Let's have a closer look at the very simple base drive network used in this application. Normally in applications such SMPS, where the load is variable, the collector current varies as well. It is very important to provide a base current to the device that is correlated with the collector current in ...
MAX1927/MAX1928 Low-Output-Voltage, 800mA, PWM Step-Down DC-DC Converters General Description
... MAX1928 initiate pulse-skipping PFM operation when the peak inductor current drops below 130mA. During PFM operation, the MAX1927/MAX1928 switch only as necessary to service the load, reducing the switching frequency and associated losses in the internal switch, synchronous rectifier, and inductor. ...
... MAX1928 initiate pulse-skipping PFM operation when the peak inductor current drops below 130mA. During PFM operation, the MAX1927/MAX1928 switch only as necessary to service the load, reducing the switching frequency and associated losses in the internal switch, synchronous rectifier, and inductor. ...
Diathermy and its safe use Disinfection and sterilisation
... If the area of contact between the plate and patient is reduced, the patient is at risk of being burned at the site of the plate. If the plate is completely detached, current might flow through any point of contact between patient and earth, for example earthed ECG electrodes or ...
... If the area of contact between the plate and patient is reduced, the patient is at risk of being burned at the site of the plate. If the plate is completely detached, current might flow through any point of contact between patient and earth, for example earthed ECG electrodes or ...
SPICE Device Model SUP/SUB75N08-10 N-Channel
... • Models Gate Charge, Transient, and Diode Reverse Recovery Characteristics ...
... • Models Gate Charge, Transient, and Diode Reverse Recovery Characteristics ...
Temperature Dependent Pspice Model of Silicon Carbide Power MOSFET
... different temperatures and different gate voltages (curves from top to bottom, Vgs equals to 20 V, 18 V and 16 V, respectively). The conduction current is up to 40 A in the comparison considering overshoot during switching transient. As shown in the figures, the simulation results have good agreemen ...
... different temperatures and different gate voltages (curves from top to bottom, Vgs equals to 20 V, 18 V and 16 V, respectively). The conduction current is up to 40 A in the comparison considering overshoot during switching transient. As shown in the figures, the simulation results have good agreemen ...
Higher Physics: Monitoring and measuring alternating current
... Electricity is a method of transferring energy, so alternating current (a.c.) is capable of transferring energy in the same way as direct current (d.c.). The instantaneous amount of power being supplied can be calculated from the voltage and/or current at a particular time, using the equation P = I ...
... Electricity is a method of transferring energy, so alternating current (a.c.) is capable of transferring energy in the same way as direct current (d.c.). The instantaneous amount of power being supplied can be calculated from the voltage and/or current at a particular time, using the equation P = I ...
TS556
... the external capacitor is initially held discharged by a transistor inside the timer, as shown in Figure 4. Figure 4. ...
... the external capacitor is initially held discharged by a transistor inside the timer, as shown in Figure 4. Figure 4. ...
Minimization of Charge Sharing ~ Problems in Dynamic BiCMOS
... period, both MP 4 and MN1 are turned OFF and MP3 is ON. If both inputs ('A' and 'B') are low (OV), the bipolar device (01) will be turned ON. As a result, the output is pulled low to the ground level. After the output is pulled down Vfb will switch to high. Then, MN1 is turned ON and MP3 is turned O ...
... period, both MP 4 and MN1 are turned OFF and MP3 is ON. If both inputs ('A' and 'B') are low (OV), the bipolar device (01) will be turned ON. As a result, the output is pulled low to the ground level. After the output is pulled down Vfb will switch to high. Then, MN1 is turned ON and MP3 is turned O ...
Experiment 13: Op-Amp / Controlled Voltage Source
... resistance is assumed to be zero. The op-amp can be modeled as a voltage controlled voltage source whose output voltage is controlled by its input voltage. Refer to the model diagram on the right. A typical (data book) value for an op-amp’s input resistance is 2 megohms and output resistance is 75 o ...
... resistance is assumed to be zero. The op-amp can be modeled as a voltage controlled voltage source whose output voltage is controlled by its input voltage. Refer to the model diagram on the right. A typical (data book) value for an op-amp’s input resistance is 2 megohms and output resistance is 75 o ...
UMC5N Features Mechanical Data
... Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein: A. Life support devices or systems are devices or systems which: ...
... Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein: A. Life support devices or systems are devices or systems which: ...
OPA365 - Texas Instruments
... (1) Stresses above these ratings may cause permanent damage. Exposure to absolute maximum conditions for extended periods may degrade device reliability. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those specified is not supported. (2 ...
... (1) Stresses above these ratings may cause permanent damage. Exposure to absolute maximum conditions for extended periods may degrade device reliability. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those specified is not supported. (2 ...
living with the lab - Louisiana Tech University
... Any procedures demonstrated here are potentially dangerous and could result in injury or damage. Louisiana Tech University and the State of Louisiana, their officers, employees, agents or volunteers, are not liable or responsible for any injuries, illness, damage or losses which may result from your ...
... Any procedures demonstrated here are potentially dangerous and could result in injury or damage. Louisiana Tech University and the State of Louisiana, their officers, employees, agents or volunteers, are not liable or responsible for any injuries, illness, damage or losses which may result from your ...
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.