1. For the following circuit, assume the values of the resistor R is 1
... (c). Assume the quality factor Q is defined as Q=2nx ...
... (c). Assume the quality factor Q is defined as Q=2nx ...
Tutorial4 clamper circuit
... symmetrical pulse wave signal of amplitude 20V and frequency 5kHz is applied at t=0. Draw first three cycle of output waveforms. [Ans:Vo=6.66v,-5.66v,3.28v] ANS: ...
... symmetrical pulse wave signal of amplitude 20V and frequency 5kHz is applied at t=0. Draw first three cycle of output waveforms. [Ans:Vo=6.66v,-5.66v,3.28v] ANS: ...
Micrometers Vernier caliper
... Inductive displacement sensor. Coil is excited at high frequency (typically 1 MHz) This induces eddy current in the target Eddy current alters the inductance of the probe coil This change can be translated into a voltage proportional to the air gap ...
... Inductive displacement sensor. Coil is excited at high frequency (typically 1 MHz) This induces eddy current in the target Eddy current alters the inductance of the probe coil This change can be translated into a voltage proportional to the air gap ...
A Solid State Replacement for the 62 set dynamotor
... wouldn’t be room for a smoothing capacitor. So instead, I upgraded the existing adjacent 8µF electrolytic with a modern one of roughly the same size, but rated at 100µF at 450V. The bridge rectifier was soldered to this. The toroidal transformer easily fitted into the space and was mounted elegantly ...
... wouldn’t be room for a smoothing capacitor. So instead, I upgraded the existing adjacent 8µF electrolytic with a modern one of roughly the same size, but rated at 100µF at 450V. The bridge rectifier was soldered to this. The toroidal transformer easily fitted into the space and was mounted elegantly ...
to the complete article
... The choice of the first stage has been very easy because the 6SL7, tested many times, gives a good sound and enough voltage gain (about 50). The decision on the second stage has been more complicated and my idea was to not use an interstage capacitor between the driver and the 845 grid; because in ...
... The choice of the first stage has been very easy because the 6SL7, tested many times, gives a good sound and enough voltage gain (about 50). The decision on the second stage has been more complicated and my idea was to not use an interstage capacitor between the driver and the 845 grid; because in ...
L3 Ohms_law
... Connect the circuit as shown in Figure 1. Identify the Resistor provided using the resistor colour code and ohmmeter. Set the d.c. supply voltage initially to zero volts. Adjust the supply voltage so that the resistance draws a current of 1 mA. Read the potential difference across the resistance R w ...
... Connect the circuit as shown in Figure 1. Identify the Resistor provided using the resistor colour code and ohmmeter. Set the d.c. supply voltage initially to zero volts. Adjust the supply voltage so that the resistance draws a current of 1 mA. Read the potential difference across the resistance R w ...
UJT Oscillator
... THEORY :- The UJT has negative resistance characteristic, because of this character the UJT provides trigger pulse. Any one of the three terminals can be taken for triggering pulse. The UJT can be used as relaxation oscillator i.e. it produces non-sinusoidal waves. The circuit diagram of relaxation ...
... THEORY :- The UJT has negative resistance characteristic, because of this character the UJT provides trigger pulse. Any one of the three terminals can be taken for triggering pulse. The UJT can be used as relaxation oscillator i.e. it produces non-sinusoidal waves. The circuit diagram of relaxation ...
POWER FACTOR MEASUREMENT AND CONTROL It is used to
... property of the current transformer is change in secondary voltage with respect to load current in primary. Potential Transformer: Main property Potential Transformer is change in secondary voltage with respect to Primary voltage. It is used to step down voltage process because normally in the circu ...
... property of the current transformer is change in secondary voltage with respect to load current in primary. Potential Transformer: Main property Potential Transformer is change in secondary voltage with respect to Primary voltage. It is used to step down voltage process because normally in the circu ...
Capacitors Capacitors are devices that store electric charge (and
... Capacitors are devices that store electric charge (and electric potential energy). They consist of two conductors, separated by an insulator. Each of the conductors is called a plate and are normally charged with equal and opposite charge by connecting each plate to one terminal of a battery or powe ...
... Capacitors are devices that store electric charge (and electric potential energy). They consist of two conductors, separated by an insulator. Each of the conductors is called a plate and are normally charged with equal and opposite charge by connecting each plate to one terminal of a battery or powe ...
Construction of a Variable Frequency High Voltage Power Supply
... Here, we describe the design of a high voltage, variable frequency power supply for driving plasmas and testing the frequency responses of Dielectric Barrier Discharges (DBDs). DBDs are frequently used for surface treating, ozone production, and as UV sources. A DBD is an electrical discharge where ...
... Here, we describe the design of a high voltage, variable frequency power supply for driving plasmas and testing the frequency responses of Dielectric Barrier Discharges (DBDs). DBDs are frequently used for surface treating, ozone production, and as UV sources. A DBD is an electrical discharge where ...
Document
... of capacitor voltage results in a decoupled and linear cascaded control system. This paper utilizes the same concept to significantly reduce the computational power required to implement the analytic filtering scheme proposed in. The use of complex capacitor voltage filtering is avoided as the r ...
... of capacitor voltage results in a decoupled and linear cascaded control system. This paper utilizes the same concept to significantly reduce the computational power required to implement the analytic filtering scheme proposed in. The use of complex capacitor voltage filtering is avoided as the r ...
1. General - Saunalahti.fi
... LF1. C5, D1 and D2 form a voltage doubler that rises the output of T1 from 2 to 4 kV AC. C6, D3 and D4 implement the same function for T2. The total voltage developed upon SG1 is therefore 8 kV AC. C1-C4 and R1-R4 are snubbers to protect D1-D4 from voltage transients. Motor MG1 rotates the RSG1 rota ...
... LF1. C5, D1 and D2 form a voltage doubler that rises the output of T1 from 2 to 4 kV AC. C6, D3 and D4 implement the same function for T2. The total voltage developed upon SG1 is therefore 8 kV AC. C1-C4 and R1-R4 are snubbers to protect D1-D4 from voltage transients. Motor MG1 rotates the RSG1 rota ...
Smart transmitters
... reference, sub-regulator, internal oscillator, control logic, and an output current amplifier. ...
... reference, sub-regulator, internal oscillator, control logic, and an output current amplifier. ...
CR circuit - schoolphysics
... The circuit shown in Figure 1 contains both resistance and capacitance, and therefore both the component and the frequency of the supply voltage affect the current in the circuit. The a.c. resistance of such a circuit is known as the impedance of the circuit and is denoted by the symbol Z. Impedance ...
... The circuit shown in Figure 1 contains both resistance and capacitance, and therefore both the component and the frequency of the supply voltage affect the current in the circuit. The a.c. resistance of such a circuit is known as the impedance of the circuit and is denoted by the symbol Z. Impedance ...
The Pixie "micro-power Telegraph transceiver kit instructions
... from Harbor Freight again no problem there. It uses a 1N4001 as a varicap so should be able to set the CW offset with no problem. The transistors were 9018 I believe that is a S9018 and the output transistor was 8050 which I think also requires an S, S8050. I have not succeed in down loading a data ...
... from Harbor Freight again no problem there. It uses a 1N4001 as a varicap so should be able to set the CW offset with no problem. The transistors were 9018 I believe that is a S9018 and the output transistor was 8050 which I think also requires an S, S8050. I have not succeed in down loading a data ...
Model 12701 PEAK VOLTAGE CALIBRATOR OPERATING MANUAL
... scale corresponding to the gap distance and voltage. See Figure 1 which is the scale on the Calibrator enlarged to twice actual size. Turn the Gap Adjustor Dial to the gap distance/voltage desired. About 30 complete turns of the dial adjusts the gap distance by about 1 in. (25 mm); therefore, a fine ...
... scale corresponding to the gap distance and voltage. See Figure 1 which is the scale on the Calibrator enlarged to twice actual size. Turn the Gap Adjustor Dial to the gap distance/voltage desired. About 30 complete turns of the dial adjusts the gap distance by about 1 in. (25 mm); therefore, a fine ...
t6_transformers
... TRANSFORMERS A transformer is a device for either increasing or decreasing an ac voltage. Transformers are used everywhere. Our electrical supply from our power points is 240 Vrms, 50 Hz. Many electrical circuits in home devices operate at much lower voltages. So, transformers are used to produce sm ...
... TRANSFORMERS A transformer is a device for either increasing or decreasing an ac voltage. Transformers are used everywhere. Our electrical supply from our power points is 240 Vrms, 50 Hz. Many electrical circuits in home devices operate at much lower voltages. So, transformers are used to produce sm ...
ANNOUNCEMENT
... Question 2 • At = 0, the capacitor has charge and the circuit oscillates with frequency 45 • Suppose the circuit started with an initial charge of 2 … what would the oscillation frequency, 40 be? (a) 40 < 45 ...
... Question 2 • At = 0, the capacitor has charge and the circuit oscillates with frequency 45 • Suppose the circuit started with an initial charge of 2 … what would the oscillation frequency, 40 be? (a) 40 < 45 ...
Automotive Ignition Systems
... The carmaker will select the right-temperature plug for each car. Some cars with high-performance engines naturally generate more heat, so they need colder plugs. If the spark plug gets too hot, it could ignite the fuel before the spark fires; so it is important to stick with the right type of plug ...
... The carmaker will select the right-temperature plug for each car. Some cars with high-performance engines naturally generate more heat, so they need colder plugs. If the spark plug gets too hot, it could ignite the fuel before the spark fires; so it is important to stick with the right type of plug ...
6-1 to 6-6, 6-15
... of sharp blue color and should jump at least 1/4-3/8 inches to ground consistently. This method of coil checking is not fool-proof and therefore, an approved coil tester is recommended in many cases. With this equipcontinuity ment a primary andsecondary check can be made a s well as coil output and ...
... of sharp blue color and should jump at least 1/4-3/8 inches to ground consistently. This method of coil checking is not fool-proof and therefore, an approved coil tester is recommended in many cases. With this equipcontinuity ment a primary andsecondary check can be made a s well as coil output and ...
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 ...
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.""