Diode model
... The model of depletion charge is discontinuous at v D = Φ o . In practice v D < Φ o and theoretically there is no problem with this discontinuity. However, in actual computations, due to numerical errors it is possible that v D ≥ Φ o and the model has to be modified. A modification used in SPICE is ...
... The model of depletion charge is discontinuous at v D = Φ o . In practice v D < Φ o and theoretically there is no problem with this discontinuity. However, in actual computations, due to numerical errors it is possible that v D ≥ Φ o and the model has to be modified. A modification used in SPICE is ...
Fluke 1735 - Electro Rent
... • Measuring range: see V rms and A rms measurement • Power errors are calculated by adding the errors of voltage and current • Additional error due to power factor PF • Specified error x(1-|PF|) • Maximum range with voltage range 830 V deltaconnection and 3000 A current range is 2.490 MW, highe ...
... • Measuring range: see V rms and A rms measurement • Power errors are calculated by adding the errors of voltage and current • Additional error due to power factor PF • Specified error x(1-|PF|) • Maximum range with voltage range 830 V deltaconnection and 3000 A current range is 2.490 MW, highe ...
Electronic Troubleshooting
... Filter Capacitors • Used to smooth the pulses from a rectifier Circuit • On the first pulse seen by the capacitor • It’s voltage closely matches the rising input voltage • After the input voltage reaches its peak value the current to the load resistor is supplied from the capacitor • The output vol ...
... Filter Capacitors • Used to smooth the pulses from a rectifier Circuit • On the first pulse seen by the capacitor • It’s voltage closely matches the rising input voltage • After the input voltage reaches its peak value the current to the load resistor is supplied from the capacitor • The output vol ...
Introduction_Semi_Devices-6-09-10
... while they are conducting. This is called for forward voltage drop. It is in the 0.5 to 0.9 volt range for silicon diodes. A typical value is 0.7 volts. • The forward drop in a germanium diode is in the 0.2 to 0.4 volt range. • Diodes also have a threshold voltage approximately equal to the forward ...
... while they are conducting. This is called for forward voltage drop. It is in the 0.5 to 0.9 volt range for silicon diodes. A typical value is 0.7 volts. • The forward drop in a germanium diode is in the 0.2 to 0.4 volt range. • Diodes also have a threshold voltage approximately equal to the forward ...
Resistance Relationships: Ohm`s Law and Resistance
... supply fuse or a burned out resistor. If your resistor becomes hot, immediately reduce the maximum voltage. Conduct an experiment to find the relationship between voltage and current in this circuit. Design your experiment, collect appropriate data, graph it, and by performing regression analysis, f ...
... supply fuse or a burned out resistor. If your resistor becomes hot, immediately reduce the maximum voltage. Conduct an experiment to find the relationship between voltage and current in this circuit. Design your experiment, collect appropriate data, graph it, and by performing regression analysis, f ...
§7 Designing with Logic
... One critical application area is bus contention during the power-on phase of a system. This bus contention occurs because, during the power-on phase (system reset), the supervising circuit does not provide defined control signals even though the rest of the system may already be functional. Therefor ...
... One critical application area is bus contention during the power-on phase of a system. This bus contention occurs because, during the power-on phase (system reset), the supervising circuit does not provide defined control signals even though the rest of the system may already be functional. Therefor ...
Chapter 2
... • The terms B j e are due to the excitation E(s) and are called the forced response terms. • The frequencies si are the natural frequency of the system, while the frequencies sj are the frequencies of the excitation. ...
... • The terms B j e are due to the excitation E(s) and are called the forced response terms. • The frequencies si are the natural frequency of the system, while the frequencies sj are the frequencies of the excitation. ...
Subiecte de examen la CEF din sesiunile anterioare
... T1. 1.5p. What is the circuit for the NAND CMOS gate? Describe the operation of the circuit by means of the truth table and the states of all transistors (on or off). T2. 1.5p. The operational amplifier: symbol; terminals; operation equation; properties of the ideal op amp. E1. Assume OA – ideal, ra ...
... T1. 1.5p. What is the circuit for the NAND CMOS gate? Describe the operation of the circuit by means of the truth table and the states of all transistors (on or off). T2. 1.5p. The operational amplifier: symbol; terminals; operation equation; properties of the ideal op amp. E1. Assume OA – ideal, ra ...
E-212 - Accuphase
... (Multiple Delta Sigma) D/A converter allows direct input of the digital signal for example from a CD player for ultra-pure music reproduction. An option board for reproduction of analog records is also available. Parallel push-pull power unit delivers 115 watts/ch into 4 ohms or 90 watts/ch into 8 o ...
... (Multiple Delta Sigma) D/A converter allows direct input of the digital signal for example from a CD player for ultra-pure music reproduction. An option board for reproduction of analog records is also available. Parallel push-pull power unit delivers 115 watts/ch into 4 ohms or 90 watts/ch into 8 o ...
Static Charge to Electric Current - science
... Current-potential difference graphs These are used to show how the current through a component varies with the potential difference across it. The circuit opposite could be used to obtain a current-potential difference graph of a ...
... Current-potential difference graphs These are used to show how the current through a component varies with the potential difference across it. The circuit opposite could be used to obtain a current-potential difference graph of a ...
VUI30-12N1 - IXYS Power
... correction, set up as follows: • input from three phase mains - wide range of input voltage - mains currents approx. sinusoidal in phase with mains voltage - topology permits to control overcurrent such as in case of input voltage peaks • output - direct current link - buck type conve ...
... correction, set up as follows: • input from three phase mains - wide range of input voltage - mains currents approx. sinusoidal in phase with mains voltage - topology permits to control overcurrent such as in case of input voltage peaks • output - direct current link - buck type conve ...
AN/GSM-397(V) Electronic Systems Test Set
... and electro-optic weapons devices such as missile systems, vehicles and aircraft. Using a combination of card-level and rackmounted instruments, the ESTS offers state of the art digital, analog, video and RF test capability in a set of portable, environmentally secure transit cases that can be set u ...
... and electro-optic weapons devices such as missile systems, vehicles and aircraft. Using a combination of card-level and rackmounted instruments, the ESTS offers state of the art digital, analog, video and RF test capability in a set of portable, environmentally secure transit cases that can be set u ...
physics 212 chapter 17 current and resistance
... B____ 8. The unit of electric current, the ampere, is equivalent to which of the following? A. V×W D. V/s B. V/W E. W/V C. W×m A____ 9. The unit of electric resistance, the ohm, is equivalent to which of the following? A. V/A D. A/m B. V×m E. A/V C. A/s E___ 10. If a certain resistor obeys Ohm's la ...
... B____ 8. The unit of electric current, the ampere, is equivalent to which of the following? A. V×W D. V/s B. V/W E. W/V C. W×m A____ 9. The unit of electric resistance, the ohm, is equivalent to which of the following? A. V/A D. A/m B. V×m E. A/V C. A/s E___ 10. If a certain resistor obeys Ohm's la ...
Time allowed: 3 hours Maximum Marks: 70 Sample Paper – 2011
... A potentiometer wire of length 1m is connected to a driver cell of emf 3V as shown in fig. When a cell of emf 1.5V is used in the secondary circuit, the balance point is found to be 60cm.On replacing this cell by a cell of unknown emf, the balance point shifts to80cm. (i) Calculate the unknown emf ...
... A potentiometer wire of length 1m is connected to a driver cell of emf 3V as shown in fig. When a cell of emf 1.5V is used in the secondary circuit, the balance point is found to be 60cm.On replacing this cell by a cell of unknown emf, the balance point shifts to80cm. (i) Calculate the unknown emf ...
Chapter 6 Electricity: Electrical Circuit
... a. Voltage is the strength of a power source. b. A power source with more voltage can produce more electric current. c. Voltage is measured in volts. i. A D cell battery has 1.5 volts. ii. Most wall outlets which gets power from a power plant have 120 volts. 3. Resistance a. Resistance is the abilit ...
... a. Voltage is the strength of a power source. b. A power source with more voltage can produce more electric current. c. Voltage is measured in volts. i. A D cell battery has 1.5 volts. ii. Most wall outlets which gets power from a power plant have 120 volts. 3. Resistance a. Resistance is the abilit ...
ALLGUY Eye-sense
... optical filter to provide a response which is close to the human eye, or “photopic”. The output current can be converted to a voltage by connecting it in series with a resistor. The dynamic range is determined by the external resistor and power supply (10K and 5V gives a range of 0 to over 2500 Lux, ...
... optical filter to provide a response which is close to the human eye, or “photopic”. The output current can be converted to a voltage by connecting it in series with a resistor. The dynamic range is determined by the external resistor and power supply (10K and 5V gives a range of 0 to over 2500 Lux, ...
PPT - LSU Physics & Astronomy
... If one connects resistors of lower and lower value of R to get higher and higher currents, eventually a real battery fails to establish the potential difference E, and settles for a lower value. One can represent a “real EMF device” as an ideal one attached to a resistor, called “internal resistance ...
... If one connects resistors of lower and lower value of R to get higher and higher currents, eventually a real battery fails to establish the potential difference E, and settles for a lower value. One can represent a “real EMF device” as an ideal one attached to a resistor, called “internal resistance ...
Resistive opto-isolator
Resistive opto-isolator (RO), also called photoresistive opto-isolator, vactrol (after a genericized trademark introduced by Vactec, Inc. in the 1960s), analog opto-isolator or lamp-coupled photocell, is an optoelectronic device consisting of a source and detector of light, which are optically coupled and electrically isolated from each other. The light source is usually a light-emitting diode (LED), a miniature incandescent lamp, or sometimes a neon lamp, whereas the detector is a semiconductor-based photoresistor made of cadmium selenide (CdSe) or cadmium sulfide (CdS). The source and detector are coupled through a transparent glue or through the air.Electrically, RO is a resistance controlled by the current flowing through the light source. In the dark state, the resistance typically exceeds a few MOhm; when illuminated, it decreases as the inverse of the light intensity. In contrast to the photodiode and phototransistor, the photoresistor can operate in both the AC and DC circuits and have a voltage of several hundred volts across it. The harmonic distortions of the output current by the RO are typically within 0.1% at voltages below 0.5 V.RO is the first and the slowest opto-isolator: its switching time exceeds 1 ms, and for the lamp-based models can reach hundreds of milliseconds. Parasitic capacitance limits the frequency range of the photoresistor by ultrasonic frequencies. Cadmium-based photoresistors exhibit a ""memory effect"": their resistance depends on the illumination history; it also drifts during the illumination and stabilizes within hours, or even weeks for high-sensitivity models. Heating induces irreversible degradation of ROs, whereas cooling to below −25 °C dramatically increases the response time. Therefore, ROs were mostly replaced in the 1970s by the faster and more stable photodiodes and photoresistors. ROs are still used in some sound equipment, guitar amplifiers and analog synthesizers owing to their good electrical isolation, low signal distortion and ease of circuit design.