1- Harmonic Sources from Commercial Loads
... electronic equipment. Nonlinear industrial loads can generally be grouped into three categories: three-phase power converters, arcing devices, and ...
... electronic equipment. Nonlinear industrial loads can generally be grouped into three categories: three-phase power converters, arcing devices, and ...
Fully Integrated TX/RX HV ASIC design for CMUT
... 1. Provide very low input impedance to accept current input signal and very low output impedance to drive the voltage output signal across the cable and into the backend system with as small as possible noise factor. 2. Interface low voltage (LV) circuitry, i.e. Rx amplifier, with HV bias and transm ...
... 1. Provide very low input impedance to accept current input signal and very low output impedance to drive the voltage output signal across the cable and into the backend system with as small as possible noise factor. 2. Interface low voltage (LV) circuitry, i.e. Rx amplifier, with HV bias and transm ...
EUP2520 Preliminary Dual Output Step-Up Converter for White LED Backlighting and OLED Display
... A single external resistor is used to set the maximum LED current. The LED current can be adjusted by applying a PWM signal to the EN pin. For higher efficiency the EUP2520 operates with pulse frequency modulation (PFM) control scheme when the sub-display is enabled. When Main display is enabled, th ...
... A single external resistor is used to set the maximum LED current. The LED current can be adjusted by applying a PWM signal to the EN pin. For higher efficiency the EUP2520 operates with pulse frequency modulation (PFM) control scheme when the sub-display is enabled. When Main display is enabled, th ...
CHAPTER 5 PHASE SHIFTED CARRIER BASED PULSE WIDTH
... The source code is written in the VHDL. After writing the code syntax check has been performed on the code to verify whether code was properly written using correct syntax [73-76]. The next step is HDL RTL simulation called behavioral simulation. This step verifies whether the design entered is func ...
... The source code is written in the VHDL. After writing the code syntax check has been performed on the code to verify whether code was properly written using correct syntax [73-76]. The next step is HDL RTL simulation called behavioral simulation. This step verifies whether the design entered is func ...
harmonic elimination in vsc hvdc system using she-pwm
... eliminates the low-order harmonics of the ac side even when the dc bus voltage fluctuates. This is an online method which can be applied for eliminating any low-order harmonic frequency regardless of amplitude or phase shift of the ripple. There are some limitations related to the maximum modulation ...
... eliminates the low-order harmonics of the ac side even when the dc bus voltage fluctuates. This is an online method which can be applied for eliminating any low-order harmonic frequency regardless of amplitude or phase shift of the ripple. There are some limitations related to the maximum modulation ...
User`s Manual Three Output DC Regulated Power Supplies Models
... Note: The Model 382213 (LCD metering) is shown above. The Model 382203 (shown on the cover page) uses analog metering. ...
... Note: The Model 382213 (LCD metering) is shown above. The Model 382203 (shown on the cover page) uses analog metering. ...
evk-hades1210
... both isolated gate drivers with the positive and negative supply voltages required to drive the different types of FETs. The DC-DC converter function is fully integrated in CHT-HADES2P device. It provides as well high voltage isolation between the 2 channels and high dV/dt immunity. The converter al ...
... both isolated gate drivers with the positive and negative supply voltages required to drive the different types of FETs. The DC-DC converter function is fully integrated in CHT-HADES2P device. It provides as well high voltage isolation between the 2 channels and high dV/dt immunity. The converter al ...
dbmb voltage or power?
... back, I said the decibel expresses a ratio between two power levels, yet here I’ve tacked a voltage reference onto the decibel. When we use dBmV, we are indeed using the decibel to express ratios between power levels – in a roundabout sort of way. The confusing part is that the decibel now is expres ...
... back, I said the decibel expresses a ratio between two power levels, yet here I’ve tacked a voltage reference onto the decibel. When we use dBmV, we are indeed using the decibel to express ratios between power levels – in a roundabout sort of way. The confusing part is that the decibel now is expres ...
| PeRfeCT BalanCe WiTH 100 % ReDunDanCy
... Having the highest machine availability is an important subject. That's why power supply systems are often redundantly designed, with two power supply units. Murrelektronik's active redundancy module, MB Redundancy Balance, decouples two independent power supply units and generates a redundant 24 V ...
... Having the highest machine availability is an important subject. That's why power supply systems are often redundantly designed, with two power supply units. Murrelektronik's active redundancy module, MB Redundancy Balance, decouples two independent power supply units and generates a redundant 24 V ...
GMW360A Sin/Cos to Analog Interpolator IC
... a user initiated Offset Null routine that eliminates the DC offset voltages. To determine the existing offset voltages at these inputs, the magnet target must be removed so that there is no magnetic field at the sensor. The Offset Null is initiated by momentarily connecting the PWM output pin (PIN 5) ...
... a user initiated Offset Null routine that eliminates the DC offset voltages. To determine the existing offset voltages at these inputs, the magnet target must be removed so that there is no magnetic field at the sensor. The Offset Null is initiated by momentarily connecting the PWM output pin (PIN 5) ...
baltospot – ceram 35
... higher voltages or current than those generally necessary for the application. When a too hard high voltage value is used, contrast gradually disappears due to the shape of the spectrum. ...
... higher voltages or current than those generally necessary for the application. When a too hard high voltage value is used, contrast gradually disappears due to the shape of the spectrum. ...
Quiz 3 Solutions
... The dc voltage drop in the power supply lead is determined by its dc resistance. If the load current changes changes instantaneously, e.g. when a logic gate changes states, the load voltage drop decreases by an amount ∆VL = ∆IL × Z0 . To minimize this, Z0 should be as small as possible. (d) What geo ...
... The dc voltage drop in the power supply lead is determined by its dc resistance. If the load current changes changes instantaneously, e.g. when a logic gate changes states, the load voltage drop decreases by an amount ∆VL = ∆IL × Z0 . To minimize this, Z0 should be as small as possible. (d) What geo ...
Course - IPFW.edu
... and frequency response of single and multistage amplifiers. Highfrequency and low-frequency designs are emphasized. Understand the tescription of deterministic signals through the use of Fourier series. Fourier and Z-transforms. Systems description treated by differential and difference equations in ...
... and frequency response of single and multistage amplifiers. Highfrequency and low-frequency designs are emphasized. Understand the tescription of deterministic signals through the use of Fourier series. Fourier and Z-transforms. Systems description treated by differential and difference equations in ...
- Krest Technology
... inverters by means of pulse width modulation or by control of the dc-link voltage, thus drawing either leading or lagging reactive power from the supply The response of the active power filter (APF) is very important while compensating rapidly varying balanced, unbalanced and nonlinear loads. Any ch ...
... inverters by means of pulse width modulation or by control of the dc-link voltage, thus drawing either leading or lagging reactive power from the supply The response of the active power filter (APF) is very important while compensating rapidly varying balanced, unbalanced and nonlinear loads. Any ch ...
PROVA SCRITTA DI AZIONAMENTI ELETTRICI L
... Numerical Exercises (max. 6 pts.) 1) The dc-link voltage of a three-phase inverter is 300 V. Calculate the maximum peak value of the output phase voltage that can be applied to a star-connected three-phase load under the assumption that the modulation strategy of the inverter is SVM [300/sqrt(3) V] ...
... Numerical Exercises (max. 6 pts.) 1) The dc-link voltage of a three-phase inverter is 300 V. Calculate the maximum peak value of the output phase voltage that can be applied to a star-connected three-phase load under the assumption that the modulation strategy of the inverter is SVM [300/sqrt(3) V] ...
IR-LED presentation
... Lumens per Watt better than Incandescent / Halogen lamps Lumens per Watt equal or better than Fluorescent or HID lamps ...
... Lumens per Watt better than Incandescent / Halogen lamps Lumens per Watt equal or better than Fluorescent or HID lamps ...
tcw -09-pc to rque co n tr o ller tcw-09-pc torque
... 15) Drive current indication given during manual reverse operation. 16) The No. of expansions are stored in the memory and displayed on the panel display at power ON and also whenever the panel is idle. 17) Trip valves are stored in memory after expansion and can be reviewed any time. 18) The trip v ...
... 15) Drive current indication given during manual reverse operation. 16) The No. of expansions are stored in the memory and displayed on the panel display at power ON and also whenever the panel is idle. 17) Trip valves are stored in memory after expansion and can be reviewed any time. 18) The trip v ...
AI010 507(P)Industrial Electronics Lab
... Design and implementation of Ramp-Comparator and digital firing scheme for simple SCR circuits. 5. Automatic lighting control with SCRs and optoelectronic components. 6. AC phase control using SCR and TRIAC. 7. Speed control of DC motor using choppers and converters. 8. Generation and study the PWM ...
... Design and implementation of Ramp-Comparator and digital firing scheme for simple SCR circuits. 5. Automatic lighting control with SCRs and optoelectronic components. 6. AC phase control using SCR and TRIAC. 7. Speed control of DC motor using choppers and converters. 8. Generation and study the PWM ...
型号 Model
... (Waring :if it is not the same with the wiring schema of the instrument case,please according to the one of instrument case.) 1 Auxiliary power supply(Power): Instruments need an additional auxiliary power supply to work normally, which is AC 220V. 2 Signal Input (INPUT): HI represents"+" port of DC ...
... (Waring :if it is not the same with the wiring schema of the instrument case,please according to the one of instrument case.) 1 Auxiliary power supply(Power): Instruments need an additional auxiliary power supply to work normally, which is AC 220V. 2 Signal Input (INPUT): HI represents"+" port of DC ...
Lab3: DC-DC Boost Converter
... Switched mode supplies can be used for many purposes including DC to DC converters. Often, although a DC supply, such as a battery may be available, its available voltage is not suitable for the system being supplied. For example, the motors used in driving electric automobiles require much higher v ...
... Switched mode supplies can be used for many purposes including DC to DC converters. Often, although a DC supply, such as a battery may be available, its available voltage is not suitable for the system being supplied. For example, the motors used in driving electric automobiles require much higher v ...
SET-276. Power factor correction and alerts through the
... transistor on-times in accordance with separate polynomial transfer functions for powerfactor control and peak-current-linking using as inputs current representations of line input voltage (VLN), load output voltage (VLD), and long-term current demand (VCD). A conduction cycle is initiated by sensin ...
... transistor on-times in accordance with separate polynomial transfer functions for powerfactor control and peak-current-linking using as inputs current representations of line input voltage (VLN), load output voltage (VLD), and long-term current demand (VCD). A conduction cycle is initiated by sensin ...
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.