California Instruments CS series current source
... AC Current Sources are useful in a variety of applications where precision is required; including precise evaluation of circuit breakers, overload relays, bi-metal temperature sensors and heating elements. Another common application is non-destructive testing of fuses. The arbitrary waveform capabil ...
... AC Current Sources are useful in a variety of applications where precision is required; including precise evaluation of circuit breakers, overload relays, bi-metal temperature sensors and heating elements. Another common application is non-destructive testing of fuses. The arbitrary waveform capabil ...
Document
... not have high distortion output. However, it has a draw back of low efficiency. Therefore, it is usually used on small signal amplifier. Class AB can also work on analogue signals but at least two transistors will be used to build an amplifier to achieve low output distortion. It has higher effici ...
... not have high distortion output. However, it has a draw back of low efficiency. Therefore, it is usually used on small signal amplifier. Class AB can also work on analogue signals but at least two transistors will be used to build an amplifier to achieve low output distortion. It has higher effici ...
MD Series Spec - Controlled Power Company
... This specification defines the electrical and mechanical characteristics and requirements for an uninterruptible power supply (UPS) system. The system as specified herein shall include all the components required to deliver reliable, high quality uninterruptible power for critical loads. The system ...
... This specification defines the electrical and mechanical characteristics and requirements for an uninterruptible power supply (UPS) system. The system as specified herein shall include all the components required to deliver reliable, high quality uninterruptible power for critical loads. The system ...
High Power RF LDMOS Transistors for Avionics Applications
... becomes a premium within the electronics bay. System redundancy also detracts from available room. As TCAS shares the same frequency domain as other critical systems, integration of “multi-box” units into one is becoming the most recent design criteria. Consolidation offers reduction in overall size ...
... becomes a premium within the electronics bay. System redundancy also detracts from available room. As TCAS shares the same frequency domain as other critical systems, integration of “multi-box” units into one is becoming the most recent design criteria. Consolidation offers reduction in overall size ...
1. Introduction
... The cage induction motor is the electric motor most widely used in industry. It is popular because of its simple and rugged construction and minimal need of maintenance. Its efficiency is good and the weight low. It has internationally standardised dimensions and power ratings. Its popularity and go ...
... The cage induction motor is the electric motor most widely used in industry. It is popular because of its simple and rugged construction and minimal need of maintenance. Its efficiency is good and the weight low. It has internationally standardised dimensions and power ratings. Its popularity and go ...
MAX1820/MAX1821 WCDMA Cellular Phone 600mA Buck Regulators General Description
... Buck Regulators (VBATT = 3.6V, SHDN = BATT, SKIP = SYNC = GND, VREF = 1.25V (MAX1820 only), TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 2) ...
... Buck Regulators (VBATT = 3.6V, SHDN = BATT, SKIP = SYNC = GND, VREF = 1.25V (MAX1820 only), TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 2) ...
higher harmonics analize in led diode lamps used to illumination
... The use of electronic systems with a view to stabilizing operation of the lighting diodes, apart from its many advantages has one important fault – it generates higher harmonic component. The systems of diode lamps emit higher order harmonics to the network, giving rise to important hazard. This phe ...
... The use of electronic systems with a view to stabilizing operation of the lighting diodes, apart from its many advantages has one important fault – it generates higher harmonic component. The systems of diode lamps emit higher order harmonics to the network, giving rise to important hazard. This phe ...
N-channel 600 V, 0.370 typ., 10 A MDmesh™ DM2 Power MOSFET
... VDD = 60 V, Tj = 150 °C (see Figure 16: "Test circuit for inductive load switching and diode recovery times") ...
... VDD = 60 V, Tj = 150 °C (see Figure 16: "Test circuit for inductive load switching and diode recovery times") ...
control strategy
... and vice versa for critical loads was described in [7], where an extra static switch is required. A phaselocked loop (PLL) technique is commonly used in grid-connected converters to provide accurate estimation of phase angle for grid synchronization [8]. A PLL-based flexible transition control strat ...
... and vice versa for critical loads was described in [7], where an extra static switch is required. A phaselocked loop (PLL) technique is commonly used in grid-connected converters to provide accurate estimation of phase angle for grid synchronization [8]. A PLL-based flexible transition control strat ...
MAX1708 High-Frequency, High-Power, Low-Noise, Step-Up DC-DC Converter General Description
... to 10W at a fixed (3.3V or 5V) or adjustable (2.5V to 5.5V) output, using an on-chip power MOSFET from a 0.7V to 5V supply. Fixed-frequency PWM operation ensures that the switching noise spectrum is constrained to the 600kHz fundamental and its harmonics, allowing easy postfiltering for noise reduct ...
... to 10W at a fixed (3.3V or 5V) or adjustable (2.5V to 5.5V) output, using an on-chip power MOSFET from a 0.7V to 5V supply. Fixed-frequency PWM operation ensures that the switching noise spectrum is constrained to the 600kHz fundamental and its harmonics, allowing easy postfiltering for noise reduct ...
Tunable Laser Evaluation Circuit Board Key Features Applications
... cost-effective tunable laser solutions for many applications in access and data center networks, and beyond. The tunable laser evaluation circuit board is designed for evaluation of tunable laser TOSA. It includes 3 current controls for the laser wavelength and output power, a TEC controller and an ...
... cost-effective tunable laser solutions for many applications in access and data center networks, and beyond. The tunable laser evaluation circuit board is designed for evaluation of tunable laser TOSA. It includes 3 current controls for the laser wavelength and output power, a TEC controller and an ...
Excitation Sequence of Stepping Motor and Driver
... 앳 Microstep Drive Technology The stepping motor moves and stops in increments of the step angle determined by the rotor and stator's salient pole structure, easily achieving a high degree of precision in positioning. The stepping motor, on the other hand, causes the rotor speed to vary because the m ...
... 앳 Microstep Drive Technology The stepping motor moves and stops in increments of the step angle determined by the rotor and stator's salient pole structure, easily achieving a high degree of precision in positioning. The stepping motor, on the other hand, causes the rotor speed to vary because the m ...
ZXLD1350Q Description Pin Assignments Features Typical
... When input voltage VIN is first applied, the initial current in L1 and RS is zero and there is no output from the current sense circuit. Under this condition, the (-) input to the comparator is at ground and its output is high. This turns MN on and switches the LX pin low, causing current to flow fr ...
... When input voltage VIN is first applied, the initial current in L1 and RS is zero and there is no output from the current sense circuit. Under this condition, the (-) input to the comparator is at ground and its output is high. This turns MN on and switches the LX pin low, causing current to flow fr ...
RMSL-‐348 AC to DC Power Supply Owners Guide
... The individual user should take care to determine, prior to use or installation, whether this device is suitable, adequate or safe for the use intended. Since individual applications are subject to great variation, DuraComm makers no representation or warranty as to the merchantability, suitability ...
... The individual user should take care to determine, prior to use or installation, whether this device is suitable, adequate or safe for the use intended. Since individual applications are subject to great variation, DuraComm makers no representation or warranty as to the merchantability, suitability ...
Control of a DC/DC Converter Using FlexPWM`s Force
... The Zero-Voltage-Switch (ZVS) H-bridge is controlled with two pairs of phase-shifted PWM signals to keep the output voltage at the same level, in spite of variations in the input voltage and output current. Figure 2 shows the simplified schematic of the converter and where the control is done. The P ...
... The Zero-Voltage-Switch (ZVS) H-bridge is controlled with two pairs of phase-shifted PWM signals to keep the output voltage at the same level, in spite of variations in the input voltage and output current. Figure 2 shows the simplified schematic of the converter and where the control is done. The P ...
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.