Power_Conditioning_January_2007
... The power supply unit shown in figure 2 is said to be unregulated i. Explain the meaning of the term unregulated as used in relation to power supplies. Give one example where an unregulated power supply may be acceptable and one example where a regulated power supply is required. ii. Show how a thre ...
... The power supply unit shown in figure 2 is said to be unregulated i. Explain the meaning of the term unregulated as used in relation to power supplies. Give one example where an unregulated power supply may be acceptable and one example where a regulated power supply is required. ii. Show how a thre ...
Caddock - Type MS Power Film Resistors
... Micronox ® resistance films are fired directly onto a ceramic core at temperatures above 1400°F (760°C). These resistance films have demonstrated outstanding stability when exposed to a high ambient temperature, thermal shock and high power densities. This unique approach to precision power resistor ...
... Micronox ® resistance films are fired directly onto a ceramic core at temperatures above 1400°F (760°C). These resistance films have demonstrated outstanding stability when exposed to a high ambient temperature, thermal shock and high power densities. This unique approach to precision power resistor ...
MEASUREMENT AND INSTRUMENTATION BMCC 4743
... A series of known analog voltages are created and compared to the analog input voltage In the first trial, a voltage interval of one-half the input span is compared with the input voltage If the input voltage is in the upper half of the range, the MSB is set to1; otherwise it is set to zero This pro ...
... A series of known analog voltages are created and compared to the analog input voltage In the first trial, a voltage interval of one-half the input span is compared with the input voltage If the input voltage is in the upper half of the range, the MSB is set to1; otherwise it is set to zero This pro ...
3B42 数据手册DataSheet 下载
... Output modules accept 0 to +10V (or +10V) single-ended signals and provide an isolated 4-20 mA (or 0-20 mA) process signal. All modules feature a universal pin-out and may be readily hot-swapped under full power and interchanged without disrupting field wiring. The Analog Devices 3B Series Signal Co ...
... Output modules accept 0 to +10V (or +10V) single-ended signals and provide an isolated 4-20 mA (or 0-20 mA) process signal. All modules feature a universal pin-out and may be readily hot-swapped under full power and interchanged without disrupting field wiring. The Analog Devices 3B Series Signal Co ...
AI010 303 Network Theory
... common time functions – Inverse Laplace Transform by Partial Fraction Expansion – Initial value and Final value theorems –Solution of network differential equations - Transformation of a circuit into sdomain – Transformed equivalent of resistance, capacitance, inductance and mutual inductance – Impe ...
... common time functions – Inverse Laplace Transform by Partial Fraction Expansion – Initial value and Final value theorems –Solution of network differential equations - Transformation of a circuit into sdomain – Transformed equivalent of resistance, capacitance, inductance and mutual inductance – Impe ...
Slide - Anne Roudaut
... • Pin 8 is the power for the chip. It has to be max 5V. Just plug in it to a digital pin always HIGH • Pin 6 is the control pin for the left motor. If it is HIGH the left motor do something, otherwise nothing (same principle for the pin 7 controlling the motor on the right) • If pin 2 LOW pin 3 HIG ...
... • Pin 8 is the power for the chip. It has to be max 5V. Just plug in it to a digital pin always HIGH • Pin 6 is the control pin for the left motor. If it is HIGH the left motor do something, otherwise nothing (same principle for the pin 7 controlling the motor on the right) • If pin 2 LOW pin 3 HIG ...
Experiment Title
... 6. Compare the theoretical values for the current (from calculations) with the measured values by finding the percent error. 7. Show all calculations. 8. Using the data in Table 1, calculate the power output of the batteries and the power input to the resistors. QUESTIONS: 1. Compare the power suppl ...
... 6. Compare the theoretical values for the current (from calculations) with the measured values by finding the percent error. 7. Show all calculations. 8. Using the data in Table 1, calculate the power output of the batteries and the power input to the resistors. QUESTIONS: 1. Compare the power suppl ...
ECE_SEM_1_ENGG_GRAPHICS_CLASS_NOTES
... 13. (a) ) Explain the working principles of Hartley oscillator with neat sketch and derive its frequency of oscillation (8+8) It is a sinusoidal oscillator which uses a single tapped coil having two parts named L1 and L2.The tank circuit also includes a capacitor. The centre point of L1 and L2 is gr ...
... 13. (a) ) Explain the working principles of Hartley oscillator with neat sketch and derive its frequency of oscillation (8+8) It is a sinusoidal oscillator which uses a single tapped coil having two parts named L1 and L2.The tank circuit also includes a capacitor. The centre point of L1 and L2 is gr ...
Olsun Electrics
... The transformer or reactor is to be installed in accordance with Article 450 of the National Electric Code. (a) The transformer or reactor must be installed in a well ventilated area free from: 1. Explosive or corrosive gases 2. Explosive vapors and dust 3. Excessive dust, dirt and moisture (b) Prop ...
... The transformer or reactor is to be installed in accordance with Article 450 of the National Electric Code. (a) The transformer or reactor must be installed in a well ventilated area free from: 1. Explosive or corrosive gases 2. Explosive vapors and dust 3. Excessive dust, dirt and moisture (b) Prop ...
SI03-12 - Semtech
... the risk of being damaged during the high current lightning surge. The internal TVS will clamp the metallic surges while the transformers isolation provides protection to common surges (up to approximately 1500 volts). This evaluation has shown that the 800V, 100A intra building metallic lightning s ...
... the risk of being damaged during the high current lightning surge. The internal TVS will clamp the metallic surges while the transformers isolation provides protection to common surges (up to approximately 1500 volts). This evaluation has shown that the 800V, 100A intra building metallic lightning s ...
A MEMS based electrometer with a low
... as the actuation force can be linearly controlled by the amplitude of applied voltage [8]. At the current state of setup development, as the device is not included in an oscillating loop, an external excitation stimulus must be provided with a function generator. In order to split this signal into a ...
... as the actuation force can be linearly controlled by the amplitude of applied voltage [8]. At the current state of setup development, as the device is not included in an oscillating loop, an external excitation stimulus must be provided with a function generator. In order to split this signal into a ...
14 i Energy Meters (kWh Meters)
... power supply on the AC models. All meters are available with an optional voltage free pulsed output for input to data loggers, PLC’s, building management systems or computers. ...
... power supply on the AC models. All meters are available with an optional voltage free pulsed output for input to data loggers, PLC’s, building management systems or computers. ...
AD557 DACPORT, Low-Cost Complete P-Compatible 8
... application resistors are thin film laser trimmed to match and track the DAC resistors and to assure precise initial calibration of the output range, 0 V to 2.56 V. The amplifier output stage is an NPN transistor with passive pull-down for zero-based output capability with a single power supply. The ...
... application resistors are thin film laser trimmed to match and track the DAC resistors and to assure precise initial calibration of the output range, 0 V to 2.56 V. The amplifier output stage is an NPN transistor with passive pull-down for zero-based output capability with a single power supply. The ...
Lecture 9
... To do this, we look at the circuit before switching, because the capacitor voltage will remain the same after switching. Assuming the circuit has been “unswitched” for a long time, the capacitor acts like an open circuit connected to a resistor. The capacitor voltage before switching (at t=0-) is 0 ...
... To do this, we look at the circuit before switching, because the capacitor voltage will remain the same after switching. Assuming the circuit has been “unswitched” for a long time, the capacitor acts like an open circuit connected to a resistor. The capacitor voltage before switching (at t=0-) is 0 ...
AN2759
... D1, C1 and C3 constitute a charge pump circuit, which generates the supply voltage for the high-side integrated MOSFETs. Due to voltage and current switching at relatively high frequency, these components are connected through short paths in order to minimize induced noise on other circuitries. R1, ...
... D1, C1 and C3 constitute a charge pump circuit, which generates the supply voltage for the high-side integrated MOSFETs. Due to voltage and current switching at relatively high frequency, these components are connected through short paths in order to minimize induced noise on other circuitries. R1, ...
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.