The University of Jordan Digital Electronics Sample Questions
... In high-speed digital circuits, a very important logic gate parameter is propagation delay: the delay time between a change-of-state on a gate's input and the corresponding change-of-state on that gate's output. Explain what causes propagation delay in logic gates. Why isn't the change in output sta ...
... In high-speed digital circuits, a very important logic gate parameter is propagation delay: the delay time between a change-of-state on a gate's input and the corresponding change-of-state on that gate's output. Explain what causes propagation delay in logic gates. Why isn't the change in output sta ...
SESSION 10
... fused quartz (insulator). L is the length (in meters m) of the conducting wire and A is its cross-sectional area (in m 2 ). Ohm’s law As we now know a resistor is a conductor with a specified resistance. This means that it has the same resistance even if the magnitude and direction of an applied po ...
... fused quartz (insulator). L is the length (in meters m) of the conducting wire and A is its cross-sectional area (in m 2 ). Ohm’s law As we now know a resistor is a conductor with a specified resistance. This means that it has the same resistance even if the magnitude and direction of an applied po ...
Steady-State and Transient Currents in Organic
... Also shown in Fig. 2 is the log of the steady-state current into cyclohexane for the same junction and junction voltage, but different collector voltages. In vacuum, the emission current was independent of collector voltage at voltages above 20 V. However, notice that there is still a voltage depend ...
... Also shown in Fig. 2 is the log of the steady-state current into cyclohexane for the same junction and junction voltage, but different collector voltages. In vacuum, the emission current was independent of collector voltage at voltages above 20 V. However, notice that there is still a voltage depend ...
A Brief Lecture on APDs - RIT
... Before an avalanche, the circuit is biased so that the reverse bias voltage across the APD is above breakdown. No current flows, so the supply voltage level drops completely across the APD. When an avalanche occurs, high current is drawn, though limited by the resistor. As the current drawn by the A ...
... Before an avalanche, the circuit is biased so that the reverse bias voltage across the APD is above breakdown. No current flows, so the supply voltage level drops completely across the APD. When an avalanche occurs, high current is drawn, though limited by the resistor. As the current drawn by the A ...
Integrating a Current Sense Resistor With a
... provides general lower limits for the current sensing resistor selection. The upper limit value for the current sensing resistor should be limited based on an application’s acceptable power loss for this component. One benefit of using resistors for current measurement is the availability of accurat ...
... provides general lower limits for the current sensing resistor selection. The upper limit value for the current sensing resistor should be limited based on an application’s acceptable power loss for this component. One benefit of using resistors for current measurement is the availability of accurat ...
LM334 datasheet
... dv/dt max. = 0.01V/µS ; at Iset = 1mA, dv/dt max. = 1V/µS. Slew rates of more than 1V/µS do not damage the circuit nor do they produce high currents. THERMAL EFFECTS Internal heating can have a significant effect on current regulation for an Iset above 100µA. For example, each increase of 1V in the ...
... dv/dt max. = 0.01V/µS ; at Iset = 1mA, dv/dt max. = 1V/µS. Slew rates of more than 1V/µS do not damage the circuit nor do they produce high currents. THERMAL EFFECTS Internal heating can have a significant effect on current regulation for an Iset above 100µA. For example, each increase of 1V in the ...
Electrical Current Requirements of Model Rocket Igniters
... connected to computer-controlled electronics or digital logic, you must design the system to handle the PEAK current demand of the igniter/match. Failure to perform either one of these steps can cause serious malfunction or momentary failure of the electronics. This could cause your prized rocket to ...
... connected to computer-controlled electronics or digital logic, you must design the system to handle the PEAK current demand of the igniter/match. Failure to perform either one of these steps can cause serious malfunction or momentary failure of the electronics. This could cause your prized rocket to ...
Notes of key concepts_Ch8
... The direction of current is opposite to that of electron flow, i.e. from the positive terminal of the cell to the negative terminal through the circuit. ...
... The direction of current is opposite to that of electron flow, i.e. from the positive terminal of the cell to the negative terminal through the circuit. ...
Modeling a RLC Circuit`s Current with Differential Equations
... side and the hole to the P side. This causes further disruption of electrical neutrality, and if an external current path is provided, electrons will flow through the path to the P side to unite with holes that the electric field sent there. The electron flow provides the current, and the cell’s ele ...
... side and the hole to the P side. This causes further disruption of electrical neutrality, and if an external current path is provided, electrons will flow through the path to the P side to unite with holes that the electric field sent there. The electron flow provides the current, and the cell’s ele ...
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.