Basic Circuitry - Electro Tech Online
... Some electrons on the outer orbits can jump from one atom to the next atom When an electron moves, it leaves a ‘hole’ for another electron to jump into That electron leaves another hole, and so on When there is a large number electrons jumping from one atom to the next in the same direction, ...
... Some electrons on the outer orbits can jump from one atom to the next atom When an electron moves, it leaves a ‘hole’ for another electron to jump into That electron leaves another hole, and so on When there is a large number electrons jumping from one atom to the next in the same direction, ...
Logic gates - schoolphysics
... You will find that the output from the NAND gate is not sufficient to run a motor, it may not even be enough to operate a buzzer if the batteries are at all flat. (The NAND gate output current is a few milliamps while the motor requires many hundreds of milliamps to run it) You can overcome this pro ...
... You will find that the output from the NAND gate is not sufficient to run a motor, it may not even be enough to operate a buzzer if the batteries are at all flat. (The NAND gate output current is a few milliamps while the motor requires many hundreds of milliamps to run it) You can overcome this pro ...
PDF
... design for low leakage applications. In this scheme, the device gate is connected to the bulk, resulting in high-speed switching and low leakage currents through body effect control. The drawback of this approach is that it is only applicable in situations where is lower than the diode turn-on volta ...
... design for low leakage applications. In this scheme, the device gate is connected to the bulk, resulting in high-speed switching and low leakage currents through body effect control. The drawback of this approach is that it is only applicable in situations where is lower than the diode turn-on volta ...
impedance mismatches and relections
... terminating a transmission line are incapable of absorbing power from a forward, or incident wave. Thus, all incident current and voltage are reflected back toward the source.” It’s sometimes difficult to understand why this happens. Intuition suggests that a short at the end of the line will short- ...
... terminating a transmission line are incapable of absorbing power from a forward, or incident wave. Thus, all incident current and voltage are reflected back toward the source.” It’s sometimes difficult to understand why this happens. Intuition suggests that a short at the end of the line will short- ...
Extremely Fast Wide Input Range Step
... MILPITAS, CA – March 24, 2009 - Linear Technology Corporation introduces the LTC3878 and LTC3879 high efficiency no RSENSE™ synchronous step-down DC/DC controllers. Their constant on-time valley current mode control and low 43ns minimum on-time allow very low duty cycles, ideal for high step-down ra ...
... MILPITAS, CA – March 24, 2009 - Linear Technology Corporation introduces the LTC3878 and LTC3879 high efficiency no RSENSE™ synchronous step-down DC/DC controllers. Their constant on-time valley current mode control and low 43ns minimum on-time allow very low duty cycles, ideal for high step-down ra ...
ACS752SCA-050 - Allegro Microsystems
... the IC varies in direct proportion to the primary current through its full-scale amplitude. Nonlinearity in the output can be attributed to the saturation of the flux concentrator approaching the full-scale current. The following equation is used to derive the ...
... the IC varies in direct proportion to the primary current through its full-scale amplitude. Nonlinearity in the output can be attributed to the saturation of the flux concentrator approaching the full-scale current. The following equation is used to derive the ...
LED Biasing Fundamentals Transistor Bias
... transistor and compare to a resistor biased circuit. For each circuit three different loads consisting of a red, green and blue LED will be used. In this section we will look at current stability through an LED using a voltage divider biased transistor circuit as a current source. ...
... transistor and compare to a resistor biased circuit. For each circuit three different loads consisting of a red, green and blue LED will be used. In this section we will look at current stability through an LED using a voltage divider biased transistor circuit as a current source. ...
Lecture 2 - inst.eecs.berkeley.edu
... value of the current running through it. Constant (DC) current source: Is = 2 A Time-varying current source: Is = -3 sin(wt) A Examples: few in real life! The ideal current source has known current, but unknown voltage. The voltage across the voltage source is defined by the rest of the circui ...
... value of the current running through it. Constant (DC) current source: Is = 2 A Time-varying current source: Is = -3 sin(wt) A Examples: few in real life! The ideal current source has known current, but unknown voltage. The voltage across the voltage source is defined by the rest of the circui ...
Current and Voltage
... Example: A 6Ω resistor in series with a 4Ω resistor are equivalent to a 10Ω resistor. Resistors in parallel: ...
... Example: A 6Ω resistor in series with a 4Ω resistor are equivalent to a 10Ω resistor. Resistors in parallel: ...
PHY 104 Exam #2
... First collapse the two capacitors in parallel using CEQ C1 C2 8.5 F 3.1 F 11.6 F ...
... First collapse the two capacitors in parallel using CEQ C1 C2 8.5 F 3.1 F 11.6 F ...
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.