a novel control scheme of quasi-resonant valley
... can directly sense the QR valley signal from the current sensor, and it is definitely different from the conventional method which senses the QR valley signal from auxiliary winding. The cost and size of the driver circuit can be remarkably reduced when the proposed control scheme is adopted. Furthe ...
... can directly sense the QR valley signal from the current sensor, and it is definitely different from the conventional method which senses the QR valley signal from auxiliary winding. The cost and size of the driver circuit can be remarkably reduced when the proposed control scheme is adopted. Furthe ...
nmttld6s5mc - power, Murata
... The NMTTLD6S5MC offers short circuit protection at low ambient temperatures from -40°C to the temperatures shown in the below graph, when the output power lines are shorted together or to zero volts out. Short circuit of data lines are undefined, all data lines should be properly used or teminated vi ...
... The NMTTLD6S5MC offers short circuit protection at low ambient temperatures from -40°C to the temperatures shown in the below graph, when the output power lines are shorted together or to zero volts out. Short circuit of data lines are undefined, all data lines should be properly used or teminated vi ...
NC7WB3125 2-Bit Low Power Bus Switch N C
... The NC7WB3125 is a 2-bit ultra high-speed CMOS FET bus switch with TTL-compatible active LOW control inputs. The low On Resistance of the switch allows inputs to be connected to outputs with minimal propagation delay and without generating additional ground bounce noise. The device is organized as a ...
... The NC7WB3125 is a 2-bit ultra high-speed CMOS FET bus switch with TTL-compatible active LOW control inputs. The low On Resistance of the switch allows inputs to be connected to outputs with minimal propagation delay and without generating additional ground bounce noise. The device is organized as a ...
2 X 35 W power amplifier for car radio
... level across the THD set pin. Figure 7 shows the THD detection threshold versus the THD set voltage. Since it is essential that the THD set voltage be proportional to the supply voltage, Figure 7 shows its value as a fraction of VCC. The actual voltage can be computed by multiplying the fraction cor ...
... level across the THD set pin. Figure 7 shows the THD detection threshold versus the THD set voltage. Since it is essential that the THD set voltage be proportional to the supply voltage, Figure 7 shows its value as a fraction of VCC. The actual voltage can be computed by multiplying the fraction cor ...
VOF-100 Datasheet - AC-DC POWER SUPPLY | CUI Inc
... CUI offers a two (2) year limited warranty. Complete warranty information is listed on our website. CUI reserves the right to make changes to the product at any time without notice. Information provided by CUI is believed to be accurate and reliable. However, no responsibility is assumed by CUI for ...
... CUI offers a two (2) year limited warranty. Complete warranty information is listed on our website. CUI reserves the right to make changes to the product at any time without notice. Information provided by CUI is believed to be accurate and reliable. However, no responsibility is assumed by CUI for ...
UC2525B 数据资料 dataSheet 下载
... The UC1525B/1527B series of pulse width modulator integrated circuits are designed to offer improved performance and lowered external parts count when used in designing all types of switching power supplies. The on-chip +5.1V buried zener reference is trimmed to ±0.75% and the input common-mode rang ...
... The UC1525B/1527B series of pulse width modulator integrated circuits are designed to offer improved performance and lowered external parts count when used in designing all types of switching power supplies. The on-chip +5.1V buried zener reference is trimmed to ±0.75% and the input common-mode rang ...
TS1003 Demo Board
... Silicon Laboratories intends to provide customers with the latest, accurate, and in-depth documentation of all peripherals and modules available for system and software implementers using or intending to use the Silicon Laboratories products. Characterization data, available modules and peripherals, ...
... Silicon Laboratories intends to provide customers with the latest, accurate, and in-depth documentation of all peripherals and modules available for system and software implementers using or intending to use the Silicon Laboratories products. Characterization data, available modules and peripherals, ...
Power Quality Improvement with PV/Battery Hybrid Energy
... these renewable resources PV and Wind power are most rapidly growing renewable energy sources. As we know that this pv source is non-linear energy source it will not give optimum utilization of pv system when it is directly connected. So to utilize this pv source optimally we provide an intermediate ...
... these renewable resources PV and Wind power are most rapidly growing renewable energy sources. As we know that this pv source is non-linear energy source it will not give optimum utilization of pv system when it is directly connected. So to utilize this pv source optimally we provide an intermediate ...
ME2420192024
... In recent cases, this may be a costly solution because the distribution transformer may not be situated in close vicinity. Recently, the utility service providers are putting more and more restrictions on current total harmonic distortion (THD) limits, drawn by nonlinear loads, to control the power ...
... In recent cases, this may be a costly solution because the distribution transformer may not be situated in close vicinity. Recently, the utility service providers are putting more and more restrictions on current total harmonic distortion (THD) limits, drawn by nonlinear loads, to control the power ...
N43068385
... The uninterrupted power supply is used to provide the pure sinusoidal voltage with less voltage distortion and uninterrupted power to loads such as computer, communication system, and medical support system etc. nowadays, increasing in the demand of using nonlinear load caused by the serious problem ...
... The uninterrupted power supply is used to provide the pure sinusoidal voltage with less voltage distortion and uninterrupted power to loads such as computer, communication system, and medical support system etc. nowadays, increasing in the demand of using nonlinear load caused by the serious problem ...
Field Oriented Control of Permanent Magnet Synchronous Motor
... programmable hard-wired feature, fast computation ability, shorter design cycle, embedded processor and low power consumption and higher density on the other hand can provide an alternative solution for these issues and is more suitable for the implementation of Digital System than conventional DSPs ...
... programmable hard-wired feature, fast computation ability, shorter design cycle, embedded processor and low power consumption and higher density on the other hand can provide an alternative solution for these issues and is more suitable for the implementation of Digital System than conventional DSPs ...
1. Safety Precautions
... any water droplets are visible on it. Condensation may appear if sudden changes in temperature occur. If this happens, let the device acclimatize to the new temperatures for at least one hour, then refrain from using the device until confirming that there is no condensation. • Do not disassemble the ...
... any water droplets are visible on it. Condensation may appear if sudden changes in temperature occur. If this happens, let the device acclimatize to the new temperatures for at least one hour, then refrain from using the device until confirming that there is no condensation. • Do not disassemble the ...
3H Project Skin Resistance Interface
... The application of a signal at the INPUT FROM SIG GEN bnc produces a differential signal at the OUTPUT TO BODY BNC’s. The 50 ohm resistor R1 provides the correct termination for a 50 ohm output impedance signal generator. If a higher output impedance signal generator is used this resistor should be ...
... The application of a signal at the INPUT FROM SIG GEN bnc produces a differential signal at the OUTPUT TO BODY BNC’s. The 50 ohm resistor R1 provides the correct termination for a 50 ohm output impedance signal generator. If a higher output impedance signal generator is used this resistor should be ...
SIMULATION OF SINUSOIDAL PULSE WIDTH MODULATION
... system losses. Normally, Static Var Compensators (SVCs) have been used in combination with passive filters at the distribution level for mitigation of power quality problems [5], [6] and reactive power compensation. Although SVCs are very effective controllers used for reactive power compensation at ...
... system losses. Normally, Static Var Compensators (SVCs) have been used in combination with passive filters at the distribution level for mitigation of power quality problems [5], [6] and reactive power compensation. Although SVCs are very effective controllers used for reactive power compensation at ...
AN729: Replacing Traditional Optocouplers with Si87xx Digital
... Opto-couplers are a decades-old technology widely used for signal isolation, typically providing safety isolation, signal level shifting, and ground loop mitigation. They are commonly used in a wide range of end applications, including data communication circuits, switch mode power systems, measurem ...
... Opto-couplers are a decades-old technology widely used for signal isolation, typically providing safety isolation, signal level shifting, and ground loop mitigation. They are commonly used in a wide range of end applications, including data communication circuits, switch mode power systems, measurem ...
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.