Solved_Problems_to_Chapter_11
... 11.5 An a.c. full-wave voltage controller operating in integral cycle mode feeds a resistive load of 10W from a single phase a.c. voltage source related at 230 V, 50 Hz. The thyristor switch is ON for 25 cycles followed by 75 cycles of extinction period. Determine: (a) rms value of load voltage and ...
... 11.5 An a.c. full-wave voltage controller operating in integral cycle mode feeds a resistive load of 10W from a single phase a.c. voltage source related at 230 V, 50 Hz. The thyristor switch is ON for 25 cycles followed by 75 cycles of extinction period. Determine: (a) rms value of load voltage and ...
Week 7: Motor Control Basics
... Also, digital nature of PWM signal makes it more efficient to control current to motor than linear methods (compare to a variable resistor) ...
... Also, digital nature of PWM signal makes it more efficient to control current to motor than linear methods (compare to a variable resistor) ...
Dynamic Logic Circuits
... This detects that a certain time delay be allowed before the output corresponding to the applied input(s) can be valid. The output level is preserved as long as the power supply is provided. ...
... This detects that a certain time delay be allowed before the output corresponding to the applied input(s) can be valid. The output level is preserved as long as the power supply is provided. ...
AX995A 1.6X Linear Fan Driver with VO Fully On Control
... initiation of a new soft-start cycle after the junction temperature cools by 30°C, resulting in a pulsed output during continuous thermal overload conditions. ...
... initiation of a new soft-start cycle after the junction temperature cools by 30°C, resulting in a pulsed output during continuous thermal overload conditions. ...
EUA2101A 10-W Stereo Class-D Audio Power Amplifier
... The EUA2101A is a high efficiency, 2 channel bridged-tied load (BTL), class-D audio power amplifier. Operating from a 12V power supply, EUA2101A is capable of delivering 10W/ channel of continuous output power to a 8Ω load with 10% THD+N. The EUA2101A features a differential input architecture offer ...
... The EUA2101A is a high efficiency, 2 channel bridged-tied load (BTL), class-D audio power amplifier. Operating from a 12V power supply, EUA2101A is capable of delivering 10W/ channel of continuous output power to a 8Ω load with 10% THD+N. The EUA2101A features a differential input architecture offer ...
EE102 - Wayne County Community College District
... • Define mesh analysis and nodal analysis for an arbitrary circuit. • Solve any networks using mesh and nodal analysis methods. • State bridge networks and its applications. • State Delta to Y and Y to Delta for currents and voltages conversions. • Find the Thevenin and Norton equivalent for an arbi ...
... • Define mesh analysis and nodal analysis for an arbitrary circuit. • Solve any networks using mesh and nodal analysis methods. • State bridge networks and its applications. • State Delta to Y and Y to Delta for currents and voltages conversions. • Find the Thevenin and Norton equivalent for an arbi ...
5.5. Darlington configurations
... therefore, ground the vcm source.) We can conclude, therefore, that no current is flowing in the roS resistor. This is so because the contributions (think superposition!) of the small-signal sources are equal in magnitudes but different in signs. No current through roS means no voltage drop across i ...
... therefore, ground the vcm source.) We can conclude, therefore, that no current is flowing in the roS resistor. This is so because the contributions (think superposition!) of the small-signal sources are equal in magnitudes but different in signs. No current through roS means no voltage drop across i ...
DN351 - Versatile Micropower Voltage Reference Provides Resistor Programmable Output from 0.4V to 18V
... reference voltage above 0.4V with the added feedback components. This configuration provides programmable reference voltages anywhere up to 0.35V below the supply potential used, the dropout voltage. Resistor RG is chosen in the range from 10k to 100k to set the quiescent loading of the reference, t ...
... reference voltage above 0.4V with the added feedback components. This configuration provides programmable reference voltages anywhere up to 0.35V below the supply potential used, the dropout voltage. Resistor RG is chosen in the range from 10k to 100k to set the quiescent loading of the reference, t ...
Chapter 37: Meter Usage and Circuit Diagnosis
... ► The digital volt-ohmmeter (DVOM) or digital multimeter (DMM) is electrical measurement tool used to diagnose and repair electrical faults. ► To properly use a DVOM requires time and effort to learn the parts and how it works. ► The DVOM can measure volts, ohms, and amps in a circuit. ► An advanced ...
... ► The digital volt-ohmmeter (DVOM) or digital multimeter (DMM) is electrical measurement tool used to diagnose and repair electrical faults. ► To properly use a DVOM requires time and effort to learn the parts and how it works. ► The DVOM can measure volts, ohms, and amps in a circuit. ► An advanced ...
basic electricity: ohm`s law - Saint Leo University Faculty
... This effect is called current. Current is the flow of electrical energy due to the movement of electrons. The electrons move because of the pressure, or voltage, that is applied. The opposition to the effect is called resistance. Resistance refers to the inability of the electrons in a material to t ...
... This effect is called current. Current is the flow of electrical energy due to the movement of electrons. The electrons move because of the pressure, or voltage, that is applied. The opposition to the effect is called resistance. Resistance refers to the inability of the electrons in a material to t ...
Multi-functional Packaged Antennas for Next
... - open-loop gain as function of frequency - dc open-loop gain - open-loop break frequency - constant up to fBOL then it rolls off at 20 dB/decade The product of gain A0OL and FBOL is ft, and is called the gain-bandwidth product ft is defined as the frequency where the gain of the amplifier becomes ...
... - open-loop gain as function of frequency - dc open-loop gain - open-loop break frequency - constant up to fBOL then it rolls off at 20 dB/decade The product of gain A0OL and FBOL is ft, and is called the gain-bandwidth product ft is defined as the frequency where the gain of the amplifier becomes ...
DN230 - Rail-to-Rail Amplifiers Operate on 2.7V with 20µV Offset
... The circuit in Figure 3 uses an LT1884 to achieve high common mode input range and rejection without sacrificing differential gain. U1B samples the common mode through R5 and R6 and nulls it through R3 and R4. The R3-R1 ratio must be extremely well matched to the R4-R2 ratio to avoid causing a commo ...
... The circuit in Figure 3 uses an LT1884 to achieve high common mode input range and rejection without sacrificing differential gain. U1B samples the common mode through R5 and R6 and nulls it through R3 and R4. The R3-R1 ratio must be extremely well matched to the R4-R2 ratio to avoid causing a commo ...
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.