Chapter 3.8: Lighting System
... Describe the advantages of providing transformer exclusively for lighting? Most of the problems faced by the lighting equipment and the gears are due to the supply voltage fluctuations. Hence, the lighting equipments have to be isolated from the power feeders. This is carried out by installing light ...
... Describe the advantages of providing transformer exclusively for lighting? Most of the problems faced by the lighting equipment and the gears are due to the supply voltage fluctuations. Hence, the lighting equipments have to be isolated from the power feeders. This is carried out by installing light ...
MAX16909 36V, 220kHz to 1MHz Step-Down Converter with Low Operating Current General Description
... 220kHz to 1MHz to allow optimization for efficiency, noise, and board space. A synchronization input FSYNC allows the device to synchronize to an external clock frequency. During light-load conditions, the device enters skip mode for high efficiency. The 5V fixed output voltage eliminates the need f ...
... 220kHz to 1MHz to allow optimization for efficiency, noise, and board space. A synchronization input FSYNC allows the device to synchronize to an external clock frequency. During light-load conditions, the device enters skip mode for high efficiency. The 5V fixed output voltage eliminates the need f ...
MAX16128/MAX16129 Evaluate: MAX16128/MAX16129 Evaluation Kits General Description
... causing the alternator voltage to spike due to the large capacitance of the battery removed. As the battery is disconnected, the alternator voltage jumps very high and the devices protect the sensitive circuit blocks during this event. ...
... causing the alternator voltage to spike due to the large capacitance of the battery removed. As the battery is disconnected, the alternator voltage jumps very high and the devices protect the sensitive circuit blocks during this event. ...
Dynamic Presentation of Key Concepts Module 6 Part 2
... The time constant, or t, is the time that it takes the solution to decrease by a factor of 1/e. This is an irrational number, but it is approximately equal to 3/8. After a few periods of time like this, the initial value has gone down quite a bit. For example, after five time constants (5t) the curr ...
... The time constant, or t, is the time that it takes the solution to decrease by a factor of 1/e. This is an irrational number, but it is approximately equal to 3/8. After a few periods of time like this, the initial value has gone down quite a bit. For example, after five time constants (5t) the curr ...
Dynamic Current Mode Logic Realization of Digital Arithmetic Circuits
... consists of the following: an MCML block for logic function evaluation, precharge circuit (Q2, Q3, Q4), dynamic current source (Q1, C1), and a latch to preserve logic value after evaluation (Q5, Q6). The operation of the DyCML is described as follows: during the low phase of the clock, the precharge ...
... consists of the following: an MCML block for logic function evaluation, precharge circuit (Q2, Q3, Q4), dynamic current source (Q1, C1), and a latch to preserve logic value after evaluation (Q5, Q6). The operation of the DyCML is described as follows: during the low phase of the clock, the precharge ...
8) Given the circuit in Figure 8
... Write your name on each page in the space provided. Please report your final answers in the spaces provided. Please show your work in order to demonstrate that you understand the material. If you run out of space, then clearly indicate that you are using the back of the page. The value of each parti ...
... Write your name on each page in the space provided. Please report your final answers in the spaces provided. Please show your work in order to demonstrate that you understand the material. If you run out of space, then clearly indicate that you are using the back of the page. The value of each parti ...
Form5-1 Resistance
... 1. Part A - Connect the wire to the power supply. Adjust the power supply voltage so that a current of 0.5 Amps or less flows through the circuit. 2. Record the voltages and currents for lengths, of the wire of 20, 40, 60, 80, and 100 cm. Simply press the end of one of the voltmeter leads to the wir ...
... 1. Part A - Connect the wire to the power supply. Adjust the power supply voltage so that a current of 0.5 Amps or less flows through the circuit. 2. Record the voltages and currents for lengths, of the wire of 20, 40, 60, 80, and 100 cm. Simply press the end of one of the voltmeter leads to the wir ...
current electricity
... What is a button cell ? Name any two types of button cells and explain the working of any one of them. What is a secondary cell ? When a fully charged secondary cell is discharged, then what changes occur at electrodes and electrolyte. Support your answer with chemical equations. Explain the princip ...
... What is a button cell ? Name any two types of button cells and explain the working of any one of them. What is a secondary cell ? When a fully charged secondary cell is discharged, then what changes occur at electrodes and electrolyte. Support your answer with chemical equations. Explain the princip ...
LM3151/52/53 SIMPLE SWITCHER
... Control is based on a comparator and the on-timer, with the output voltage feedback (FB) attenuated and then compared with an internal reference of 0.6V. If the attenuated FB level is below the reference, the high-side switch is turned on for a fixed time, tON, which is determined by the input volta ...
... Control is based on a comparator and the on-timer, with the output voltage feedback (FB) attenuated and then compared with an internal reference of 0.6V. If the attenuated FB level is below the reference, the high-side switch is turned on for a fixed time, tON, which is determined by the input volta ...
Vector Controlled Doubly Fed Induction Generator for Wind
... and keep the dc bus voltage relatively smooth. This grid PWM Converter is operated so as to keep the dc voltage on the capacitor at a constant value. In effect, this means that the Grid side converter is supplying the real power demands of the rotor side converter. It is possible to operate this con ...
... and keep the dc bus voltage relatively smooth. This grid PWM Converter is operated so as to keep the dc voltage on the capacitor at a constant value. In effect, this means that the Grid side converter is supplying the real power demands of the rotor side converter. It is possible to operate this con ...
AT4051a CARDIOID CONDENSER MICROPHONE
... Audio-Technica brand products purchased in the U.S.A. are warranted for one year from date of purchase by Audio-Technica U.S., Inc. (A.T.U.S.) to be free of defects in materials and workmanship. In event of such defect, product will be repaired promptly without charge or, at our option, replaced wit ...
... Audio-Technica brand products purchased in the U.S.A. are warranted for one year from date of purchase by Audio-Technica U.S., Inc. (A.T.U.S.) to be free of defects in materials and workmanship. In event of such defect, product will be repaired promptly without charge or, at our option, replaced wit ...
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.