The control of VSC-HVDC and its use for large industrial power
... likely be part of future transmission and distribution systems which supply industrial systems with a high load density, high reliability and quality requirements, and high costs associated with production stoppages. The thesis deals with the control of VSC-HVDC, the use of VSC-HVDC in a passive ind ...
... likely be part of future transmission and distribution systems which supply industrial systems with a high load density, high reliability and quality requirements, and high costs associated with production stoppages. The thesis deals with the control of VSC-HVDC, the use of VSC-HVDC in a passive ind ...
4-Channel Video Amplifier with 1-SD and 3-HD Sixth
... include a transparent sync-tip clamp option for composite video (CVBS), Y', and G'B'R' signals. ACcoupled biasing for C'/P'B/P'R channels can easily be achieved by adding an external resistor to VS+. The THS7373 rail-to-rail output stage with 6-dB gain allows for both ac and dc line driving. The abi ...
... include a transparent sync-tip clamp option for composite video (CVBS), Y', and G'B'R' signals. ACcoupled biasing for C'/P'B/P'R channels can easily be achieved by adding an external resistor to VS+. The THS7373 rail-to-rail output stage with 6-dB gain allows for both ac and dc line driving. The abi ...
MAX1697 60mA, SOT23 Inverting Charge Pump with Shutdown General Description
... The MAX1697 ultra-small, monolithic, CMOS chargepump voltage inverter accepts an input voltage ranging from +1.25V to +5.5V. This device features an ultra-low 12Ω output resistance, permitting loads of up to 60mA with maximum efficiency. The MAX1697 is available with operating frequencies of 12kHz, ...
... The MAX1697 ultra-small, monolithic, CMOS chargepump voltage inverter accepts an input voltage ranging from +1.25V to +5.5V. This device features an ultra-low 12Ω output resistance, permitting loads of up to 60mA with maximum efficiency. The MAX1697 is available with operating frequencies of 12kHz, ...
Control Components
... The Power supply is provided with an overload protection function that protect the load and the power supply from possible damage by over current. When the output current rises above between 105 to 130% (105 to 120% for the 40 A model) of the rated current, the protection function is triggered, decr ...
... The Power supply is provided with an overload protection function that protect the load and the power supply from possible damage by over current. When the output current rises above between 105 to 130% (105 to 120% for the 40 A model) of the rated current, the protection function is triggered, decr ...
Reference Materials - Jefferson Electric
... The most common protective device in use, the fuse is basically a circuit breaker that works only once and then must be replaced. When current exceeds the predetermined current value, a fusible link melts, opening the circuit. When voltage is initially switched on, a large inrush current results, be ...
... The most common protective device in use, the fuse is basically a circuit breaker that works only once and then must be replaced. When current exceeds the predetermined current value, a fusible link melts, opening the circuit. When voltage is initially switched on, a large inrush current results, be ...
+2.7V to +5.25V, Low-Power, 8-Channel, Serial 10-Bit ADCs MAX148/MAX149 General Description
... Note 1: Tested at VDD = 2.7V; COM = 0; unipolar single-ended input mode. Note 2: Relative accuracy is the deviation of the analog value at any code from its theoretical value after the full-scale range has been calibrated. Note 3: MAX149—internal reference, offset nulled; MAX148—external referenc ...
... Note 1: Tested at VDD = 2.7V; COM = 0; unipolar single-ended input mode. Note 2: Relative accuracy is the deviation of the analog value at any code from its theoretical value after the full-scale range has been calibrated. Note 3: MAX149—internal reference, offset nulled; MAX148—external referenc ...
John H. Scofield, Rev. Sci. Instrum. 58
... the "eye") near a source resistance re= 1MΩ and a frequency of 100 Hz. An impedance matching transformer with turns ratio (N2/N1)2 = re/r may be used to shift the operation of the PAR 113 with a 100 Ω bridge to the 1MΩ horizontal line (see Figure 5); these data give the lower dashed curve in Figure ...
... the "eye") near a source resistance re= 1MΩ and a frequency of 100 Hz. An impedance matching transformer with turns ratio (N2/N1)2 = re/r may be used to shift the operation of the PAR 113 with a 100 Ω bridge to the 1MΩ horizontal line (see Figure 5); these data give the lower dashed curve in Figure ...
THE FUNDAMENTALS OF AC ELECTRIC INDUCTION MOTOR
... V. The voltage rating assumes that there is voltage drop from the network to the motor terminals. Thus, the 460 V motor is appropriate on a 480 V network. Frequency—Input frequency is usually 50 or 60 Hz. When more than one frequency is nameplated, other parameters that will differ at different inpu ...
... V. The voltage rating assumes that there is voltage drop from the network to the motor terminals. Thus, the 460 V motor is appropriate on a 480 V network. Frequency—Input frequency is usually 50 or 60 Hz. When more than one frequency is nameplated, other parameters that will differ at different inpu ...
Single-Phase Multifunction Metering IC with di/dt Sensor Interface ADE7753
... have a non-ideal phase response. To offset this phase response and equalize the phase response between channels, two phasecorrection networks are placed in Channel 1: one for the digital integrator and the other for the HPF. The phase correction networks correct the phase response of the correspondi ...
... have a non-ideal phase response. To offset this phase response and equalize the phase response between channels, two phasecorrection networks are placed in Channel 1: one for the digital integrator and the other for the HPF. The phase correction networks correct the phase response of the correspondi ...
DC Shunt Motors - PSSurvival.com
... When the shunt motor reaches full rpm, its speed will remain fairly constant. The reason the speed remains constant is due to the load characteristics of the armature and shunt coil. You should remember that the speed of a series motor could not be controlled since it was totally dependent on the si ...
... When the shunt motor reaches full rpm, its speed will remain fairly constant. The reason the speed remains constant is due to the load characteristics of the armature and shunt coil. You should remember that the speed of a series motor could not be controlled since it was totally dependent on the si ...
Keysight Technologies Understanding RF/Microwave Solid State
... Solid state switches are more reliable and exhibit a longer lifetime than their electromechanical counterparts due to their superior resistance to shock, vibration and mechanical wear. They also offer a faster switching time. However, the higher innate ON resistance of the solid state switches gives ...
... Solid state switches are more reliable and exhibit a longer lifetime than their electromechanical counterparts due to their superior resistance to shock, vibration and mechanical wear. They also offer a faster switching time. However, the higher innate ON resistance of the solid state switches gives ...
Chapter 2 Thyristor
... Figure 5 gives a graphical explanation of the triggering the PNP transistor formed by the n-layer and the two pprocess. The turn-on of the device is three-fold and layers next to it. The lower p-layer works as the collector starts when the current from MT1 flows into the gate of this PNP transistor a ...
... Figure 5 gives a graphical explanation of the triggering the PNP transistor formed by the n-layer and the two pprocess. The turn-on of the device is three-fold and layers next to it. The lower p-layer works as the collector starts when the current from MT1 flows into the gate of this PNP transistor a ...
Section 1 TVS Diode Definition and General Electronics Applications
... A sudden change in the electrical condition of any circuit can cause a transient voltage to be generated from the energy stored in its inductance and capacitance. The rate of change in current in an inductor will generate a switching induced transient voltage. Energizing the transformer primary • Wh ...
... A sudden change in the electrical condition of any circuit can cause a transient voltage to be generated from the energy stored in its inductance and capacitance. The rate of change in current in an inductor will generate a switching induced transient voltage. Energizing the transformer primary • Wh ...
W. Li and D.J. Perreault, “Switched-Capacitor Step-Down Rectifier for Low-Voltage Power Conversion,” 2013 IEEE Applied Power Electronics Conference , pp. 1884-1891, March 2013.
... the devices in the last stage are required to be controlled and all other devices in the multi-level SC rectifier can be either self-driven or driven by dc voltages. The driving scheme of the multi-level SC rectifier is shown in Fig. 8. It will also be recognized that this rectifier can be driven in ...
... the devices in the last stage are required to be controlled and all other devices in the multi-level SC rectifier can be either self-driven or driven by dc voltages. The driving scheme of the multi-level SC rectifier is shown in Fig. 8. It will also be recognized that this rectifier can be driven in ...
MAX5711 10-Bit, Low-Power, Rail-to-Rail Voltage-Output Serial DAC in SOT23 General Description
... The SOT23 footprint is less than 9mm2. The MAX5711 has less than 1LSB differential nonlinearity error, ensuring monotonic performance. The device uses a simple 3-wire, SPI/QSPI/MICROWIRE and DSP-compatible serial interface that operates up to 20MHz. The MAX5711 incorporates three shutdown modes, mak ...
... The SOT23 footprint is less than 9mm2. The MAX5711 has less than 1LSB differential nonlinearity error, ensuring monotonic performance. The device uses a simple 3-wire, SPI/QSPI/MICROWIRE and DSP-compatible serial interface that operates up to 20MHz. The MAX5711 incorporates three shutdown modes, mak ...
Sample Specification
... panel, analog output or via field bus of actual. Quiet motor operation for audibly friendly working environment in comparison to other low voltage PWM solutions utilizing a carrier frequency. Have available the ability to operate in open loop torque control, with an ability to switch between speed a ...
... panel, analog output or via field bus of actual. Quiet motor operation for audibly friendly working environment in comparison to other low voltage PWM solutions utilizing a carrier frequency. Have available the ability to operate in open loop torque control, with an ability to switch between speed a ...
in Word Doc Format
... (c) Remains constant with the load current (d) Has the lowest value (Ans) 35. In different parts of the country identical telephone numbers are distinguished by their (a) Language digits (b) Access digits (c) Area codes (Ans) (d) Central office codes 36. Amplitude modulation is used for broadcasting ...
... (c) Remains constant with the load current (d) Has the lowest value (Ans) 35. In different parts of the country identical telephone numbers are distinguished by their (a) Language digits (b) Access digits (c) Area codes (Ans) (d) Central office codes 36. Amplitude modulation is used for broadcasting ...
TDA1083 - TU Chemnitz
... stabilizes the supply voltage at VS 13 V, which allows with the aid of a resistor and a rectifier, the circuit to be driven by a higher external supply voltage. ...
... stabilizes the supply voltage at VS 13 V, which allows with the aid of a resistor and a rectifier, the circuit to be driven by a higher external supply voltage. ...
HALO - Electric Supplies Online
... 120VAC Standard Dimming - Incandescent and Magnetic Low Voltage Dimmers Standard 120VAC line voltage dimmers for incandescent and magnetic low voltage loads control the light source with “forward phase control”. With forward phase control the dimmer “chops” the forward part of the AC wave to deliver ...
... 120VAC Standard Dimming - Incandescent and Magnetic Low Voltage Dimmers Standard 120VAC line voltage dimmers for incandescent and magnetic low voltage loads control the light source with “forward phase control”. With forward phase control the dimmer “chops” the forward part of the AC wave to deliver ...
Active Receive Mixer LF to 500 MHz AD8342
... The AD8342 is a high performance, broadband active mixer. It is well suited for demanding receive-channel applications that require wide bandwidth on all ports and very low intermodulation distortion and noise figure. The AD8342 provides a typical conversion gain of 3.7 dB with an RF frequency of 23 ...
... The AD8342 is a high performance, broadband active mixer. It is well suited for demanding receive-channel applications that require wide bandwidth on all ports and very low intermodulation distortion and noise figure. The AD8342 provides a typical conversion gain of 3.7 dB with an RF frequency of 23 ...
Pulse-width modulation
Pulse-width modulation (PWM), or pulse-duration modulation (PDM), is a modulation technique used to encode a message into a pulsing signal. Although this modulation technique can be used to encode information for transmission, its main use is to allow the control of the power supplied to electrical devices, especially to inertial loads such as motors. In addition, PWM is one of the two principal algorithms used in photovoltaic solar battery chargers, the other being MPPT.The average value of voltage (and current) fed to the load is controlled by turning the switch between supply and load on and off at a fast rate. The longer the switch is on compared to the off periods, the higher the total power supplied to the load.The PWM switching frequency has to be much higher than what would affect the load (the device that uses the power), which is to say that the resultant waveform perceived by the load must be as smooth as possible. Typically switching has to be done several times a minute in an electric stove, 120 Hz in a lamp dimmer, from few kilohertz (kHz) to tens of kHz for a motor drive and well into the tens or hundreds of kHz in audio amplifiers and computer power supplies.The term duty cycle describes the proportion of 'on' time to the regular interval or 'period' of time; a low duty cycle corresponds to low power, because the power is off for most of the time. Duty cycle is expressed in percent, 100% being fully on.The main advantage of PWM is that power loss in the switching devices is very low. When a switch is off there is practically no current, and when it is on and power is being transferred to the load, there is almost no voltage drop across the switch. Power loss, being the product of voltage and current, is thus in both cases close to zero. PWM also works well with digital controls, which, because of their on/off nature, can easily set the needed duty cycle.PWM has also been used in certain communication systems where its duty cycle has been used to convey information over a communications channel.