Three-Terminal Linear Regulator
... ground pin, I had to ensure that any feedback did not LT1009 produce oscillations to make the regulator unstable,” he said. In addition, he added, to make the device robust, the output transistors had to fig 3 The adjustable three-terminal linear regulator be protected using foldback LT317 uses only ...
... ground pin, I had to ensure that any feedback did not LT1009 produce oscillations to make the regulator unstable,” he said. In addition, he added, to make the device robust, the output transistors had to fig 3 The adjustable three-terminal linear regulator be protected using foldback LT317 uses only ...
MAX8686 Single/Multiphase, Step-Down, DC-DC Converter Delivers Up to 25A Per Phase General Description
... Phase Selection Input/Reference Voltage Output. For single-phase or master-mode operation, the 3.3V output with 1% accuracy can be used as a reference voltage. For multiphase operation, connect PHASE/REFO PHASE/REFO of each slave device to the center tap of a resistor-divider from the master AVL to ...
... Phase Selection Input/Reference Voltage Output. For single-phase or master-mode operation, the 3.3V output with 1% accuracy can be used as a reference voltage. For multiphase operation, connect PHASE/REFO PHASE/REFO of each slave device to the center tap of a resistor-divider from the master AVL to ...
Errors and Warnings in WindMil
... What are Errors and Warnings? • Errors and warnings in WindMil indicate missing or invalid information, or incorrect setup of something within the model required for the current task • The Errors and Warnings attempt to give the end user enough information to correctly identify and fix any issues ...
... What are Errors and Warnings? • Errors and warnings in WindMil indicate missing or invalid information, or incorrect setup of something within the model required for the current task • The Errors and Warnings attempt to give the end user enough information to correctly identify and fix any issues ...
Value Flex -- VF900-G2
... Parallel connection is highly recommended as safe electrical operation mode. Serial connection is not recommended. Unbalanced voltage drop can cause hazardous overload and damage the LED module. The maximum length of VF900-G2 is 5M with power feed at one end. When mounting on metallic or other ...
... Parallel connection is highly recommended as safe electrical operation mode. Serial connection is not recommended. Unbalanced voltage drop can cause hazardous overload and damage the LED module. The maximum length of VF900-G2 is 5M with power feed at one end. When mounting on metallic or other ...
philips - Indico
... • DATA is AC coupled at the stave end • Protection can be included such that one failed hybrid does not disturb the remainder • DCS can monitor hybrid temperatures, the shunt current and (ideally) hybrid voltages Depending upon design choices, the total voltage across each serial powering loop can b ...
... • DATA is AC coupled at the stave end • Protection can be included such that one failed hybrid does not disturb the remainder • DCS can monitor hybrid temperatures, the shunt current and (ideally) hybrid voltages Depending upon design choices, the total voltage across each serial powering loop can b ...
LP3874-ADJ - Texas Instruments
... Z5U and Y5V dielectric ceramics have capacitance that drops severely with applied voltage. A typical Z5U or Y5V capacitor can lose 60% of its rated capacitance with half of the rated voltage applied to it. The Z5U and Y5V also exhibit a severe temperature effect, losing more than 50% of nominal capa ...
... Z5U and Y5V dielectric ceramics have capacitance that drops severely with applied voltage. A typical Z5U or Y5V capacitor can lose 60% of its rated capacitance with half of the rated voltage applied to it. The Z5U and Y5V also exhibit a severe temperature effect, losing more than 50% of nominal capa ...
Aalborg Universitet Secondary Voltage Unbalance Compensation for Three-Phase Four-Wire Islanded Microgrids
... Nowadays, the microgrid (MG) concept is attracting much attention due to advantages such as flexibility, reliability and high quality power. In IEEE Std 1547.4-2011, a microgrid is considered as a cluster of distributed resources (DRs), i.e. distributed generation (DG), distributed storage (DS) or h ...
... Nowadays, the microgrid (MG) concept is attracting much attention due to advantages such as flexibility, reliability and high quality power. In IEEE Std 1547.4-2011, a microgrid is considered as a cluster of distributed resources (DRs), i.e. distributed generation (DG), distributed storage (DS) or h ...
Lamp holders for Illuminated Switches
... Voltage limits ± 20% of rated voltage Low voltage glow protection up to 20 % of operating voltage Available from 12V to 230V AC or DC, 415 V AC ...
... Voltage limits ± 20% of rated voltage Low voltage glow protection up to 20 % of operating voltage Available from 12V to 230V AC or DC, 415 V AC ...
UPS Parallel Operation Analysis Considering Line
... the above analysis. The authors have so far let r s = 0 to clarify that the cross current generates an active portion under a change in amplitude as well due to the control. However, an actual device always contains some kind of resistance. Therefore, let us first consider what the r s of the actual ...
... the above analysis. The authors have so far let r s = 0 to clarify that the cross current generates an active portion under a change in amplitude as well due to the control. However, an actual device always contains some kind of resistance. Therefore, let us first consider what the r s of the actual ...
Microcontrollers XC800 Family AP08091 Application Note V1.0
... number of PWM cycle per commutation is decreased. However to obtain an accurate zero crossing measurement probably a minimum of 12 PWM periods per commutation are needed. This limits Sensorless operation at high speed especially for motors with a large number of poles. This problem can be worse for ...
... number of PWM cycle per commutation is decreased. However to obtain an accurate zero crossing measurement probably a minimum of 12 PWM periods per commutation are needed. This limits Sensorless operation at high speed especially for motors with a large number of poles. This problem can be worse for ...
PI90LV047A
... 1. “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. They are not meant to imply that the devices should be operated at these limits. The table of “Electrical Characteristics” specifies conditions of device operation. 2. Current into device pins ...
... 1. “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. They are not meant to imply that the devices should be operated at these limits. The table of “Electrical Characteristics” specifies conditions of device operation. 2. Current into device pins ...
DATASHEET SEARCH SITE | WWW.ALLDATASHEET.COM
... input, complementary TTL output voltage comparator with improved characteristics over the SE529/NE529 for which it is a pin-for-pin replacement. The device has been optimized for greater speed performance and lower input offset voltage. Typically delay varies only 3 ns for over-drive variations of 5 ...
... input, complementary TTL output voltage comparator with improved characteristics over the SE529/NE529 for which it is a pin-for-pin replacement. The device has been optimized for greater speed performance and lower input offset voltage. Typically delay varies only 3 ns for over-drive variations of 5 ...
A Generalized 3D Pulse Width Modulator for Multi
... connection are important for power electronic applications in power distribution systems, such as three-phase four-wire active power filters, uninterruptible power supply, etc. For the medium and large capacity applications, a multi-level three-phase four-wire VSI is a better solution than a two-lev ...
... connection are important for power electronic applications in power distribution systems, such as three-phase four-wire active power filters, uninterruptible power supply, etc. For the medium and large capacity applications, a multi-level three-phase four-wire VSI is a better solution than a two-lev ...
Fast topology detection based on open line detection relays, a
... Characteristics and performances of the new DLO and its application on Hydro-Québec transmission system are presented in the paper which comprises seven sections. Following the introduction, section 2 describes the open line detection problem itself, the underlying challenges and the performances r ...
... Characteristics and performances of the new DLO and its application on Hydro-Québec transmission system are presented in the paper which comprises seven sections. Following the introduction, section 2 describes the open line detection problem itself, the underlying challenges and the performances r ...
TPA2000D4 数据资料 dataSheet 下载
... The TPA2000D4 is a 2-W stereo bridge-tied-load (BTL) class-D amplifier designed to drive speakers with as low as 4-Ω impedance. The amplifier uses TI’s second-generation modulation technique, which results in improved efficiency and SNR, and also allows the device to be connected directly to the spe ...
... The TPA2000D4 is a 2-W stereo bridge-tied-load (BTL) class-D amplifier designed to drive speakers with as low as 4-Ω impedance. The amplifier uses TI’s second-generation modulation technique, which results in improved efficiency and SNR, and also allows the device to be connected directly to the spe ...
S-Parameters and Related Quantities
... Thus, for example, if a device has an SWR of 2 and you want an idea of what sort of impedance you are dealing with, you know immediately that resistances of 25 or 100 would create an SWR of 2 (25=50/2; 100=50*2). In addition, there are other impedances with resistance components between 25 and 100 t ...
... Thus, for example, if a device has an SWR of 2 and you want an idea of what sort of impedance you are dealing with, you know immediately that resistances of 25 or 100 would create an SWR of 2 (25=50/2; 100=50*2). In addition, there are other impedances with resistance components between 25 and 100 t ...
Comparison of Multi-Area Load Frequency Control by PI
... hydro or compressed air have a substantial time delay associated with the conversion of stored mechanical energy back into electricity. Thus if a customer's demand is immediate, SMES is a viable option. Another advantage is that the loss of power is less than other storage methods because the curren ...
... hydro or compressed air have a substantial time delay associated with the conversion of stored mechanical energy back into electricity. Thus if a customer's demand is immediate, SMES is a viable option. Another advantage is that the loss of power is less than other storage methods because the curren ...
Sonic Farm Berliner USER MANUAL
... 11, 12 and 13 Low and high frequency shelving boost, 6dB/octave. Mid position is flat. This is a subtle tone control meant for a gentle boost, adding depth or air to the signal. It does ...
... 11, 12 and 13 Low and high frequency shelving boost, 6dB/octave. Mid position is flat. This is a subtle tone control meant for a gentle boost, adding depth or air to the signal. It does ...
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.