Part I
... motor and make it run more slowly. Suppose the current in the motor is 5.0 A when it is connected directly across a 12-V battery. (a) What series resistor should be used to reduce the current to 2.0 A for low-speed operation? (b) What power rating should the resistor have? ...
... motor and make it run more slowly. Suppose the current in the motor is 5.0 A when it is connected directly across a 12-V battery. (a) What series resistor should be used to reduce the current to 2.0 A for low-speed operation? (b) What power rating should the resistor have? ...
Exam 3 Practice
... Q4 A 3 phase, 50 Hz, 6 pole, Y-connected synchronous generator has a synchronous reactance of j1.0 ohms per phase. Assume the armature resistance (Ra) is zero. The field current is set to produce a terminal voltage of 480V (line–line) at full load. At full load the machine supplies 60 amps at 1.0 po ...
... Q4 A 3 phase, 50 Hz, 6 pole, Y-connected synchronous generator has a synchronous reactance of j1.0 ohms per phase. Assume the armature resistance (Ra) is zero. The field current is set to produce a terminal voltage of 480V (line–line) at full load. At full load the machine supplies 60 amps at 1.0 po ...
KA3842B/3B/4B/5B SMPS CONTROLLER
... PWM controller. They are specially designed for Off - Line and DC-to-DC converter applications with minimal external components. These integrated circuits feature a trimmed oscillator for precise duty cycle control, a temperature compensated reference, high gain error amplifier. current sensing comp ...
... PWM controller. They are specially designed for Off - Line and DC-to-DC converter applications with minimal external components. These integrated circuits feature a trimmed oscillator for precise duty cycle control, a temperature compensated reference, high gain error amplifier. current sensing comp ...
Symbols - Vishay
... If more than one subscript is used (hFE, hfe), the letter symbols are either all capital or all lower case. If the subscript has numeric (single, double, etc.) as well as letter symbol(s) (such as h21E or h21e), the differentiation between static and small-signal value is made only by a subscript le ...
... If more than one subscript is used (hFE, hfe), the letter symbols are either all capital or all lower case. If the subscript has numeric (single, double, etc.) as well as letter symbol(s) (such as h21E or h21e), the differentiation between static and small-signal value is made only by a subscript le ...
Lecture 21: Alternating Current Circuits and EM Waves
... • No power losses are associated with pure capacitors - When the current increases in one direction in an AC circuit, charge accumulates on the capacitor and the voltage drop appears across it. - At the maximum value of the voltage, the energy stored in the ...
... • No power losses are associated with pure capacitors - When the current increases in one direction in an AC circuit, charge accumulates on the capacitor and the voltage drop appears across it. - At the maximum value of the voltage, the energy stored in the ...
Bharat Heavy Electrical Limited model Exam Paper
... d.)Lower peak increase voltage require Power output increase in a class-c amplifiera.) If the conduction angle decrease b).If the conduction angle increase c.) Are not governed by the conduction angle d.)None of the above A transistor with hie = 1.5 k and hfe = 75 is used in an emitter follower ...
... d.)Lower peak increase voltage require Power output increase in a class-c amplifiera.) If the conduction angle decrease b).If the conduction angle increase c.) Are not governed by the conduction angle d.)None of the above A transistor with hie = 1.5 k and hfe = 75 is used in an emitter follower ...
docx
... with some modification: we use AC voltage rather than DC, so the voltage keeps varying periodically, and the LED lights up whenever the voltage is large enough to overcome the depletion barrier. Then also a current flows across the junction (through the diode). We measure the applied voltage with an ...
... with some modification: we use AC voltage rather than DC, so the voltage keeps varying periodically, and the LED lights up whenever the voltage is large enough to overcome the depletion barrier. Then also a current flows across the junction (through the diode). We measure the applied voltage with an ...
Input offset voltage
... high CMRR high gain stability with low temperature co- efficient low dc offset low output impedance ...
... high CMRR high gain stability with low temperature co- efficient low dc offset low output impedance ...
IR-LED presentation
... Single or multi channel output Optimize for efficiency (series LED connection) or redundancy (4 channel output) High Lumen output / directed light Controllable light output (PWM or linear dimming) Galvanically isolated low voltage outputs (safety) Open and short circuit protected Wide input voltage ...
... Single or multi channel output Optimize for efficiency (series LED connection) or redundancy (4 channel output) High Lumen output / directed light Controllable light output (PWM or linear dimming) Galvanically isolated low voltage outputs (safety) Open and short circuit protected Wide input voltage ...
AC Series Notes
... c. Graph impedances, voltages and current as a function of phase d. Graph voltages and current as a function of time The general approach to solving AC circuit problems is to convert sine waves (voltages and/or currents) to phasors, perform necessary operations in the phasor domain, and then convert ...
... c. Graph impedances, voltages and current as a function of phase d. Graph voltages and current as a function of time The general approach to solving AC circuit problems is to convert sine waves (voltages and/or currents) to phasors, perform necessary operations in the phasor domain, and then convert ...
2N4401-T Datasheet
... IC = 150 mA, IB = 15 mA IC = 500 mA, IB = 50 mA IC = 150 mA, IB = 15 mA IC = 500 mA, IB = 50 mA ...
... IC = 150 mA, IB = 15 mA IC = 500 mA, IB = 50 mA IC = 150 mA, IB = 15 mA IC = 500 mA, IB = 50 mA ...
H – Parameter model :-
... good idea what it can do, how to use it effectively in a circuit, and whether it is appropriate for a particular circuit. ...
... good idea what it can do, how to use it effectively in a circuit, and whether it is appropriate for a particular circuit. ...
MJE340 NPN Epitaxial Silicon Transistor
... NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. ...
... NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. ...
A Simple Pressure Sensor Signal Conditioning Circuit
... If no pressure source is available, the gain error of the amplifier can be reduced by using the procedure outlined below. This method may be used instead of using the precision resistors discussed above for R2 through R8. The sensor span error of ±1% will remain, however. Calibration procedure: □ re ...
... If no pressure source is available, the gain error of the amplifier can be reduced by using the procedure outlined below. This method may be used instead of using the precision resistors discussed above for R2 through R8. The sensor span error of ±1% will remain, however. Calibration procedure: □ re ...
Current source
A current source is an electronic circuit that delivers or absorbs an electric current which is independent of the voltage across it.A current source is the dual of a voltage source. The term constant-current 'sink' is sometimes used for sources fed from a negative voltage supply. Figure 1 shows the schematic symbol for an ideal current source, driving a resistor load. There are two types - an independent current source (or sink) delivers a constant current. A dependent current source delivers a current which is proportional to some other voltage or current in the circuit.