Kirchhoff`s laws and drift velocity File
... Starter: what is the current and voltage in these circuits? Mark the homework ...
... Starter: what is the current and voltage in these circuits? Mark the homework ...
Chapter 26 DC Circuits
... including those associated with emfs (generally batteries here) and those of resistive elements, must equal zero. By convention we treat the charges as though they were positive carriers but in most systems they are electrons and hence negative. This is NOT true in AC systems where a changing curren ...
... including those associated with emfs (generally batteries here) and those of resistive elements, must equal zero. By convention we treat the charges as though they were positive carriers but in most systems they are electrons and hence negative. This is NOT true in AC systems where a changing curren ...
Week 4 - Electronics
... 1) First put the soldering iron in it’s stand and wait for it to heat up 2) While waiting cut the wires to length and strip the ends so that bare metal is showing 3) Then position the bare wire against the terminal you want to join it to 4) Next place the tip of the soldering iron against this point ...
... 1) First put the soldering iron in it’s stand and wait for it to heat up 2) While waiting cut the wires to length and strip the ends so that bare metal is showing 3) Then position the bare wire against the terminal you want to join it to 4) Next place the tip of the soldering iron against this point ...
Cathode Ray Oscilloscope
... The base current Ib is small, the collector current Ic is small, and the relay is not activated. The lamp L is off. The reverse happens when in the dark. R1 increases to maximum, potential difference across LDR increases, and Ib increases. The transistor amplifies the increase resulting in large Ic, ...
... The base current Ib is small, the collector current Ic is small, and the relay is not activated. The lamp L is off. The reverse happens when in the dark. R1 increases to maximum, potential difference across LDR increases, and Ib increases. The transistor amplifies the increase resulting in large Ic, ...
Power and Temperature
... Other Mechanisms • Gate-Induced Drain Leakage (GIDL) • Current flows from the drain terminal into the body of the transistor • Can happen when the gate voltage is high (in NMOS) • A high gate voltage increases the charge concentration in the areas near the gate. ...
... Other Mechanisms • Gate-Induced Drain Leakage (GIDL) • Current flows from the drain terminal into the body of the transistor • Can happen when the gate voltage is high (in NMOS) • A high gate voltage increases the charge concentration in the areas near the gate. ...
UNDERSTANDING AND USING 723VOLTAGE REGULATORS
... Now let's look at a "super duty" current, maybe 30 A. Figure 3 shows a circuit with two drivers and three or more pass transistors (Q3, Q4, and Q5)' The 0.1ohm 5-watt emitter resistors are important because they make the multiple pass transistors share the load. The 22-ohm resistor attached to the b ...
... Now let's look at a "super duty" current, maybe 30 A. Figure 3 shows a circuit with two drivers and three or more pass transistors (Q3, Q4, and Q5)' The 0.1ohm 5-watt emitter resistors are important because they make the multiple pass transistors share the load. The 22-ohm resistor attached to the b ...
Lect10
... “Junction Rule” or “Kirchhoff’s Current Law (KCL)” • In deriving the formula for the equivalent resistance of 2 resistors in parallel, we applied Kirchhoff's Second Rule (the junction rule). "At any junction point in a circuit where the current can divide (also called a node), the sum of the current ...
... “Junction Rule” or “Kirchhoff’s Current Law (KCL)” • In deriving the formula for the equivalent resistance of 2 resistors in parallel, we applied Kirchhoff's Second Rule (the junction rule). "At any junction point in a circuit where the current can divide (also called a node), the sum of the current ...
doc - Cornerstone Robotics
... which is power (P) that is dissipated and lost. The amount of power lost is given by the formula P = I2 R. The larger the current, the greater the amount of power lost in the transmission line. If you lower the current, you lower the power loss. Since P = V x I, you can send the same power P by incr ...
... which is power (P) that is dissipated and lost. The amount of power lost is given by the formula P = I2 R. The larger the current, the greater the amount of power lost in the transmission line. If you lower the current, you lower the power loss. Since P = V x I, you can send the same power P by incr ...
2STF2280
... The device is a PNP transistor manufactured using new “PB-HCD” (power bipolar high current density) technology. The resulting transistor shows exceptional high gain performances coupled with very low saturation voltage. ...
... The device is a PNP transistor manufactured using new “PB-HCD” (power bipolar high current density) technology. The resulting transistor shows exceptional high gain performances coupled with very low saturation voltage. ...
module ii: basic electrical concepts and hazards
... well beyond human danger range, especially in wet conditions. This is why it is so important that you be aware of the potential dangers and always take appropriate safety measures. MODULE SUMMARY When it comes to electricity, a shock is a shock, whether from AC, or DC. The key is to know what condit ...
... well beyond human danger range, especially in wet conditions. This is why it is so important that you be aware of the potential dangers and always take appropriate safety measures. MODULE SUMMARY When it comes to electricity, a shock is a shock, whether from AC, or DC. The key is to know what condit ...
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.