Basic Electronics
... • One volt is equal to one joule of work of coulomb of charge. (1V= J/C). Just a heat flows through a heat conductor until there is no longer a temperature difference, charge wants to flow through an electric conductor until there is no more potential difference(voltage) • When measuring voltage, o ...
... • One volt is equal to one joule of work of coulomb of charge. (1V= J/C). Just a heat flows through a heat conductor until there is no longer a temperature difference, charge wants to flow through an electric conductor until there is no more potential difference(voltage) • When measuring voltage, o ...
Chapter 1.2 - Electronic Signal & Switches
... Apply +ve voltage from base to emitter cause collecteremitter junction short (ON transistor) Apply -ve voltage or 0 V from base to emitter cause collecter-emitter junction open (OFF transistor) ...
... Apply +ve voltage from base to emitter cause collecteremitter junction short (ON transistor) Apply -ve voltage or 0 V from base to emitter cause collecter-emitter junction open (OFF transistor) ...
Document
... ripple, and hence minimum dc capacitance values that can be used in the converter. The proposed low-capacitance StatCom (LC-StatCom) is able to operate with large capacitor voltage ripples, which are very close to the calculated theoretical maximum voltage ripple. The maximum voltage stress on the s ...
... ripple, and hence minimum dc capacitance values that can be used in the converter. The proposed low-capacitance StatCom (LC-StatCom) is able to operate with large capacitor voltage ripples, which are very close to the calculated theoretical maximum voltage ripple. The maximum voltage stress on the s ...
Muddiest Points Week 5
... Voltage & Current Dividers – Use if the geometry of the circuit permits, easiest of the methods. Which is more efficient? Dividers are easiest/most efficient when you can use them readily (geometry of the circuit). KVl/KCL and NodeV are pretty much equally efficient. KVL/KCL is used as a concept to ...
... Voltage & Current Dividers – Use if the geometry of the circuit permits, easiest of the methods. Which is more efficient? Dividers are easiest/most efficient when you can use them readily (geometry of the circuit). KVl/KCL and NodeV are pretty much equally efficient. KVL/KCL is used as a concept to ...
7_photo
... negative until the photocurrent reduced to zero (this voltage is called the stopping potential Vs). 3. Different wavelengths of UV were used. 4. Different metal surfaces were used. ...
... negative until the photocurrent reduced to zero (this voltage is called the stopping potential Vs). 3. Different wavelengths of UV were used. 4. Different metal surfaces were used. ...
AC vs. DC
... To prevent damage to appliances or dangerous situations the following devices are used. Fuses are thin strips of metal placed in appliances which melt, breaking the circuit if the current gets too large preventing damage to the appliance itself. Circuit breakers are similar but instead of m ...
... To prevent damage to appliances or dangerous situations the following devices are used. Fuses are thin strips of metal placed in appliances which melt, breaking the circuit if the current gets too large preventing damage to the appliance itself. Circuit breakers are similar but instead of m ...
MP65 HIGH VOLTAGE DC FROM AC BY USING COCKCROFT
... concept. The method for stepping up the voltage is commonly done by a step-up transformer. The output of the secondary of the step up transformer increases the voltage and decreases the current. The other method for stepping up the voltage is a voltage multiplier but from AC to DC. Voltage multiplie ...
... concept. The method for stepping up the voltage is commonly done by a step-up transformer. The output of the secondary of the step up transformer increases the voltage and decreases the current. The other method for stepping up the voltage is a voltage multiplier but from AC to DC. Voltage multiplie ...
Reverse polarity and overvoltage protection
... You can use a diode in series and zener diode (or better – a transient voltage suppressor) in parallel in combination with a fuse. But you can do it better. First, the diode in series can be replaced by Pchannel MOSFET (Q1). Drain connected to input and source to output. Gate is connected to ground. ...
... You can use a diode in series and zener diode (or better – a transient voltage suppressor) in parallel in combination with a fuse. But you can do it better. First, the diode in series can be replaced by Pchannel MOSFET (Q1). Drain connected to input and source to output. Gate is connected to ground. ...
wide voltage pulse width DC motor speed control, speed control board
... The latest product of the HX-PWM (extra-wide voltage AC90V-AC260V) enter low-power DC motor speed controller. The governor uses pulse width modulation technology, selection of today's advanced switching device design, small size, no noise, high efficiency work, and advanced short circuit protection, ...
... The latest product of the HX-PWM (extra-wide voltage AC90V-AC260V) enter low-power DC motor speed controller. The governor uses pulse width modulation technology, selection of today's advanced switching device design, small size, no noise, high efficiency work, and advanced short circuit protection, ...
Hall Effect Devices as Current Sensors
... Light (photons) and heat (phonons) increase minority current carriers in reverse biased semiconductors and thus increase conduction. Light and heat after all are just electromagnetic radiation at different frequencies. Hall Effect Devices are semiconductors that respond to magnetic fields at DC to 1 ...
... Light (photons) and heat (phonons) increase minority current carriers in reverse biased semiconductors and thus increase conduction. Light and heat after all are just electromagnetic radiation at different frequencies. Hall Effect Devices are semiconductors that respond to magnetic fields at DC to 1 ...
Electrical Flow Rate
... Mini Lab: Rate of Current (pg 81) Question: Where is the rate of charge flow within a simple circuit the greatest? The least? Or is it the same everywhere? Purpose: To determine location within a simple circuit where the rate of charge flows is the greatest. ...
... Mini Lab: Rate of Current (pg 81) Question: Where is the rate of charge flow within a simple circuit the greatest? The least? Or is it the same everywhere? Purpose: To determine location within a simple circuit where the rate of charge flows is the greatest. ...
Functions of Electrical Transformer
... Functions of Electrical Transformer Electrical transformers are used to "transform" voltage from one level to another, usually from a higher voltage to a lower voltage. They do this by applying the principle of magnetic induction between coils to convert voltage and or current levels. In this way, e ...
... Functions of Electrical Transformer Electrical transformers are used to "transform" voltage from one level to another, usually from a higher voltage to a lower voltage. They do this by applying the principle of magnetic induction between coils to convert voltage and or current levels. In this way, e ...
universitetet i oslo
... Figure 4 shows an AC-amplifier designed with a NPN BJT transistor. This transistor has a current gain β = 200. Battery voltage V1 = 30 volt R1 = 80 kΩ, R2 = 12 kΩ, R3 = 2 kΩ, R4 = 10 kΩ, R5 = 10 kΩ 4 a ) Draw the Thevenin equivalent for biasing the base. How large is the Thevenin voltage VTH and the ...
... Figure 4 shows an AC-amplifier designed with a NPN BJT transistor. This transistor has a current gain β = 200. Battery voltage V1 = 30 volt R1 = 80 kΩ, R2 = 12 kΩ, R3 = 2 kΩ, R4 = 10 kΩ, R5 = 10 kΩ 4 a ) Draw the Thevenin equivalent for biasing the base. How large is the Thevenin voltage VTH and the ...
Electric Current
... The pressure of the water flowing through the pipes on the last slide compare to the voltage (electric potential) flowing through the wires of the circuit. The unit used to measure voltage is volts (V). The flow of charges in a circuit is called current. Current (I) is measured in Amperes (A). Cur ...
... The pressure of the water flowing through the pipes on the last slide compare to the voltage (electric potential) flowing through the wires of the circuit. The unit used to measure voltage is volts (V). The flow of charges in a circuit is called current. Current (I) is measured in Amperes (A). Cur ...
Triode
A triode is an electronic amplifying vacuum tube (or valve in British English) consisting of three electrodes inside an evacuated glass envelope: a heated filament or cathode, a grid, and a plate (anode). Invented in 1906 by Lee De Forest by adding a grid to the Fleming valve, the triode was the first electronic amplification device and the ancestor of other types of vacuum tubes such as the tetrode and pentode. Its invention founded the electronics age, making possible amplified radio technology and long-distance telephony. Triodes were widely used in consumer electronics devices such as radios and televisions until the 1970s, when transistors replaced them. Today, their main remaining use is in high-power RF amplifiers in radio transmitters and industrial RF heating devices. The word is derived from the Greek τρίοδος, tríodos, from tri- (three) and hodós (road, way), originally meaning the place where three roads meet.