Bootstrapping a Phase Locked Loop for Better Performance
... induced effect or a linear time related effect then this correction voltage may be used to generate a compensating signal. The properly scaled compensation is applied with the same polarity to the electrical tuning of both oscillators bootstrapping their frequencies by the same amount. By bootstrapp ...
... induced effect or a linear time related effect then this correction voltage may be used to generate a compensating signal. The properly scaled compensation is applied with the same polarity to the electrical tuning of both oscillators bootstrapping their frequencies by the same amount. By bootstrapp ...
File
... Monostable multivibrators. Additional terminals are provided for triggering or resetting. In the time delay mode of operation, the time is precisely controlled by one external resistor and capacitor. For astable operation as an oscillator, the free running frequency and duty cycle are accurately con ...
... Monostable multivibrators. Additional terminals are provided for triggering or resetting. In the time delay mode of operation, the time is precisely controlled by one external resistor and capacitor. For astable operation as an oscillator, the free running frequency and duty cycle are accurately con ...
Ideal Transformers
... • It involves interchange of electric energy between two or more electric systems • Transformers provide much needed capability of changing the voltage and current levels easily. – They are used to step-up generator voltage to an appropriate voltage level for power transfer. – Stepping down the tran ...
... • It involves interchange of electric energy between two or more electric systems • Transformers provide much needed capability of changing the voltage and current levels easily. – They are used to step-up generator voltage to an appropriate voltage level for power transfer. – Stepping down the tran ...
switching amplifier
... continuous current flow. They are used primarily in pushpull amplifiers and provide better linearity than Class B amplifiers, but with less efficiency. ...
... continuous current flow. They are used primarily in pushpull amplifiers and provide better linearity than Class B amplifiers, but with less efficiency. ...
香港考試局
... Figure 23.2 The cable can be represented as conductors AB and A’B’ in a circuit diagram. The cable can be treated as a capacitor when the inner and outer conductors are taken as the positive and negative plates. To measure its capacitance per unit length C0, the cable is connected in series with an ...
... Figure 23.2 The cable can be represented as conductors AB and A’B’ in a circuit diagram. The cable can be treated as a capacitor when the inner and outer conductors are taken as the positive and negative plates. To measure its capacitance per unit length C0, the cable is connected in series with an ...
Intelligent Electric Energy Counter
... system is compact in terms of volume and weight). This device has the major advantage accounted for the value to be submitted digitally by allowing the consumer to take a greater control of the consumption to be ...
... system is compact in terms of volume and weight). This device has the major advantage accounted for the value to be submitted digitally by allowing the consumer to take a greater control of the consumption to be ...
Asynchronous machine
... Running operation principles • Rotor circuit is closed • Induced voltages produce rotor currents • Currents interacts with air gap field and produce torque • Rotor starts to rotate • Relative speed decreases • Induced voltage decreases • Speed settles to steady state value according to torque balan ...
... Running operation principles • Rotor circuit is closed • Induced voltages produce rotor currents • Currents interacts with air gap field and produce torque • Rotor starts to rotate • Relative speed decreases • Induced voltage decreases • Speed settles to steady state value according to torque balan ...
Electric circuits power point
... As we stated before, the capacitance of a capacitor depends on its size and shape. Basically a capacitor consists of two separated (at least electrically separated) conductors (usually pieces of metal) so that we can pull charge from one and deposit it on the other. In the next slide we look at a co ...
... As we stated before, the capacitance of a capacitor depends on its size and shape. Basically a capacitor consists of two separated (at least electrically separated) conductors (usually pieces of metal) so that we can pull charge from one and deposit it on the other. In the next slide we look at a co ...
What precisely is an electric arc? How does it ignite and what
... of a given contact rating will be rated for, say, 120 volts AC, but will have a considerably lower DC voltage rating— usually 28 or 30 volts DC. That is, the gap is wide enough that, given the periodic swing through zero of alternating current, any AC arc should quickly extinguish. But the gap would ...
... of a given contact rating will be rated for, say, 120 volts AC, but will have a considerably lower DC voltage rating— usually 28 or 30 volts DC. That is, the gap is wide enough that, given the periodic swing through zero of alternating current, any AC arc should quickly extinguish. But the gap would ...
Electrical Technology Memo (English)
... The torque of the split-phase motor is obtained from two stator windings. One winding has a higher impedance than the other, causing the single phase supply to split up to form an equivalent two-phase system. The fact that one stator winding is more inductive than the other causes a phase displ ...
... The torque of the split-phase motor is obtained from two stator windings. One winding has a higher impedance than the other, causing the single phase supply to split up to form an equivalent two-phase system. The fact that one stator winding is more inductive than the other causes a phase displ ...
NCV8852GEVB NCV8852 Evaluation Board User's Manual
... are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of SCILLC’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marki ...
... are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of SCILLC’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marki ...
Score_____/38 pts( 2pts per question) Purpose: Use this simulation
... on it. How does the voltage drop across each capacitor compare to the voltage across the battery? Same/battery more/battery less/ capacitor more/ capacitor less c. Discharge the capacitors by opening the left switch and closing the right switch. Increase the capacitance of the top capacitor (right c ...
... on it. How does the voltage drop across each capacitor compare to the voltage across the battery? Same/battery more/battery less/ capacitor more/ capacitor less c. Discharge the capacitors by opening the left switch and closing the right switch. Increase the capacitance of the top capacitor (right c ...
MAX2750/MAX2751/MAX2752 2.4GHz Monolithic Voltage-Controlled Oscillators General Description
... 50Ω including an on-chip DC blocking capacitor. No external DC blocking capacitor is required, eliminating the need for any external components. The output amplifier has its own VCC and GND pins to minimize load-pulling effects. The amplifier boosts the oscillator signal to a level suitable for driv ...
... 50Ω including an on-chip DC blocking capacitor. No external DC blocking capacitor is required, eliminating the need for any external components. The output amplifier has its own VCC and GND pins to minimize load-pulling effects. The amplifier boosts the oscillator signal to a level suitable for driv ...
Calculating the Time Constant of an RC Circuit
... This project and derivation is designed to acknowledge the value of a circuit’s RC time constant. Knowing the time constant of an RC circuit can allow it to be used as a hardware filter. It can be utilized to only react to certain changes within the circuit. For instance windshield wiper speed setti ...
... This project and derivation is designed to acknowledge the value of a circuit’s RC time constant. Knowing the time constant of an RC circuit can allow it to be used as a hardware filter. It can be utilized to only react to certain changes within the circuit. For instance windshield wiper speed setti ...
mirror inflector
... consider a beam of width 4 mm and if the beam is projected 2 mm away from the central line i.e. along ray 2, we find vertical ray 1,2,3 comes to the horizontal ray 1,2,3. From Fig.5 vertical distance Z0 traversed by rays is 9.2 mm and passes through without any loss. So the placement of inflector s ...
... consider a beam of width 4 mm and if the beam is projected 2 mm away from the central line i.e. along ray 2, we find vertical ray 1,2,3 comes to the horizontal ray 1,2,3. From Fig.5 vertical distance Z0 traversed by rays is 9.2 mm and passes through without any loss. So the placement of inflector s ...
Go Picture These! - Lake Area Radio Klub
... an ohmmeter is to ensure that the circuit is not powered. T7D6 Attempting to measure voltage when using the resistance setting might damage a multimeter. T7D10 When an ohmmeter is connected across a circuit and initially indicates a low resistance and then shows increasing resistance with time, the ...
... an ohmmeter is to ensure that the circuit is not powered. T7D6 Attempting to measure voltage when using the resistance setting might damage a multimeter. T7D10 When an ohmmeter is connected across a circuit and initially indicates a low resistance and then shows increasing resistance with time, the ...
PPT: 555 - godinweb
... Oscillators ◊ We have looked at simple oscillator designs using an inverter, and had a brief look at crystal oscillators. ◊ In this presentation, we introduce the 555 timer; a versatile device that is easier to calculate, design and configure in a variety of ways. ...
... Oscillators ◊ We have looked at simple oscillator designs using an inverter, and had a brief look at crystal oscillators. ◊ In this presentation, we introduce the 555 timer; a versatile device that is easier to calculate, design and configure in a variety of ways. ...
ModAct 1102KB Mar 24 2002 12:35:32 AM - hot
... synchronous spark gap's values need to be measured. The pulse width (PW) is found by measuring the duration of the gap's conduction. This can be estimated without measurement by estimating at which notch quenching will occur. The time delay can be calculated but it is time consuming to find the maxi ...
... synchronous spark gap's values need to be measured. The pulse width (PW) is found by measuring the duration of the gap's conduction. This can be estimated without measurement by estimating at which notch quenching will occur. The time delay can be calculated but it is time consuming to find the maxi ...
02 electric power
... The delta-wye connection is shown in figure 2-11. Note that for the given turns ratios of 1:1 that the magnitude of the phase-to-phase output voltage is equal to the magnitude of the phase-to-phase input voltage multiplied by √3 . The input and output voltages of 3Ø transformers and 3Ø banks of sing ...
... The delta-wye connection is shown in figure 2-11. Note that for the given turns ratios of 1:1 that the magnitude of the phase-to-phase output voltage is equal to the magnitude of the phase-to-phase input voltage multiplied by √3 . The input and output voltages of 3Ø transformers and 3Ø banks of sing ...
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... When an electrical switch in an electrical circuit is opened or closed, a spark of high voltage can be created. In Tesla's day, engineers and workmen had to be very careful of this phenomenon when working with high-voltage DC generators. A sudden closure of a circuit being powered from a dynamo cap ...
... When an electrical switch in an electrical circuit is opened or closed, a spark of high voltage can be created. In Tesla's day, engineers and workmen had to be very careful of this phenomenon when working with high-voltage DC generators. A sudden closure of a circuit being powered from a dynamo cap ...
Spark-gap transmitter
A spark-gap transmitter is a device that generates radio frequency electromagnetic waves using a spark gap.Spark gap transmitters were the first devices to demonstrate practical radio transmission, and were the standard technology for the first three decades of radio (1887–1916). Later, more efficient transmitters were developed based on rotary machines like the high-speed Alexanderson alternators and the static Poulsen Arc generators.Most operators, however, still preferred spark transmitters because of their uncomplicated design and because the carrier stopped when the telegraph key was released, which let the operator ""listen through"" for a reply. With other types of transmitter, the carrier could not be controlled so easily, and they required elaborate measures to modulate the carrier and to prevent transmitter leakage from de-sensitizing the receiver. After WWI, greatly improved transmitters based on vacuum tubes became available, which overcame these problems, and by the late 1920s the only spark transmitters still in regular operation were ""legacy"" installations on naval vessels. Even when vacuum tube based transmitters had been installed, many vessels retained their crude but reliable spark transmitters as an emergency backup. However, by 1940, the technology was no longer used for communication. Use of the spark-gap transmitter led to many radio operators being nicknamed ""Sparks"" long after they ceased using spark transmitters. Even today, the German verb funken, literally, ""to spark,"" also means ""to send a radio message or signal.""