Motors - MD Anderson Cancer Center
... 2. All motor bearings shall be factory prepacked with a nondetergent lubricant and shall be provided with lubrication fitting arranged to provide easy access when installed on the driven apparatus except as noted hereinafter. 3. Permanently lubricated factory-sealed motors may be provided in fractio ...
... 2. All motor bearings shall be factory prepacked with a nondetergent lubricant and shall be provided with lubrication fitting arranged to provide easy access when installed on the driven apparatus except as noted hereinafter. 3. Permanently lubricated factory-sealed motors may be provided in fractio ...
LTC3530 - Wide Input Voltage Synchronous Buck
... The LTC3530 provides high efficiency, low noise power for a wide variety of handheld electronic devices. The LTC proprietary topology allows input voltages above, below or equal to the output voltage by properly phasing the output switches. The error amp output voltage on VC determines the output dut ...
... The LTC3530 provides high efficiency, low noise power for a wide variety of handheld electronic devices. The LTC proprietary topology allows input voltages above, below or equal to the output voltage by properly phasing the output switches. The error amp output voltage on VC determines the output dut ...
Draft Information Document Generating Unit Technical Requirements ID# 2011-012R
... standards. Authoritative documents contain binding rights, requirements and obligations for market participants and the AESO. Market participants and the AESO are required to comply with provisions set out in its authoritative documents. Market participants are encouraged to review the following rel ...
... standards. Authoritative documents contain binding rights, requirements and obligations for market participants and the AESO. Market participants and the AESO are required to comply with provisions set out in its authoritative documents. Market participants are encouraged to review the following rel ...
Suppression of transients across the tap windings of an auto
... necessary using ZnO varistors, especially in the area of the tap winding. This will improve their condition and enhance their service performance. Protection against overvoltage Non-linear resistors inside power transformer have been in use for more than 25 years to control overvoltages caused by va ...
... necessary using ZnO varistors, especially in the area of the tap winding. This will improve their condition and enhance their service performance. Protection against overvoltage Non-linear resistors inside power transformer have been in use for more than 25 years to control overvoltages caused by va ...
PCA9533 1. General description 4-bit I
... The PCA9533 is a 4-bit I2C-bus and SMBus I/O expander optimized for dimming LEDs in 256 discrete steps for Red/Green/Blue (RGB) color mixing and back light applications. The PCA9533 contains an internal oscillator with two user programmable blink rates and duty cycles coupled to the output PWM. The ...
... The PCA9533 is a 4-bit I2C-bus and SMBus I/O expander optimized for dimming LEDs in 256 discrete steps for Red/Green/Blue (RGB) color mixing and back light applications. The PCA9533 contains an internal oscillator with two user programmable blink rates and duty cycles coupled to the output PWM. The ...
AK2345
... Set the gain at 20 dB or lower and the cut-off frequency at about 10 kHz by connecting external resistors and capacitors. SCF circuit, which limits the band of input voice signals. This prevents voice signals below 300 Hz from having an adverse effect on CTCSS/CDCSS signals during transmitting. The ...
... Set the gain at 20 dB or lower and the cut-off frequency at about 10 kHz by connecting external resistors and capacitors. SCF circuit, which limits the band of input voice signals. This prevents voice signals below 300 Hz from having an adverse effect on CTCSS/CDCSS signals during transmitting. The ...
chapter 9: power management
... Nearly all regulators will have some means of current limiting and over temperature sensing, to protect the pass device against failure. Current limiting is usually implemented by a series sensing resistor for high current parts, or alternately by a more simple drive current limit to a controlled β ...
... Nearly all regulators will have some means of current limiting and over temperature sensing, to protect the pass device against failure. Current limiting is usually implemented by a series sensing resistor for high current parts, or alternately by a more simple drive current limit to a controlled β ...
Catalog
... recloser control and accessories Description The Form 4D recloser control is the first in a line of fully integrated controls developed by Eaton’s Cooper Power Systems. These controls will feature a standard look and feel, and a universal platform that can be programmed for almost any protective app ...
... recloser control and accessories Description The Form 4D recloser control is the first in a line of fully integrated controls developed by Eaton’s Cooper Power Systems. These controls will feature a standard look and feel, and a universal platform that can be programmed for almost any protective app ...
WORD - ECE Department - University of Central Florida
... or changes in the view. Once a movement is detected, the robot is to be taken out of its idle state and be ready to perform. Once the robot has been set to a “ready” state, the robot needs to follow the object that triggered the change of status. While the tracking is occurring, it must also avoid a ...
... or changes in the view. Once a movement is detected, the robot is to be taken out of its idle state and be ready to perform. Once the robot has been set to a “ready” state, the robot needs to follow the object that triggered the change of status. While the tracking is occurring, it must also avoid a ...
Slide 1
... required to be connected to a common line referred to as a Bus, which in turn is required to drive a number of gates inputs. When number of gate outputs are to be connected to the Bus, some difficulties arise as 1. Totem pole outputs can’t be connected together because of very large current drain fr ...
... required to be connected to a common line referred to as a Bus, which in turn is required to drive a number of gates inputs. When number of gate outputs are to be connected to the Bus, some difficulties arise as 1. Totem pole outputs can’t be connected together because of very large current drain fr ...
TPS7A4001 100-V Input Voltage, 50
... The TPS7A4001 device belongs to a new generation of linear regulators that use an innovative BiCMOS process technology to achieve very high maximum input and output voltages. This process not only allows the TPS7A4001 device to maintain regulation during very fast high-voltage transients up to 105 V ...
... The TPS7A4001 device belongs to a new generation of linear regulators that use an innovative BiCMOS process technology to achieve very high maximum input and output voltages. This process not only allows the TPS7A4001 device to maintain regulation during very fast high-voltage transients up to 105 V ...
Frequently Asked Questions
... 3.001 How do transformers work? Transformers are devices that transform voltage up or down by magnetic means. Alternating current (AC) flowing in a primary coil establishes an alternating magnetic flux in a "core" that easily conducts this flux. If another coil (called a "secondary" coil) is positi ...
... 3.001 How do transformers work? Transformers are devices that transform voltage up or down by magnetic means. Alternating current (AC) flowing in a primary coil establishes an alternating magnetic flux in a "core" that easily conducts this flux. If another coil (called a "secondary" coil) is positi ...
Chapter 1
... of output signal, may be classified into analog and digital transducers. Analog transducer converts input signal into output signal, which is a continuous function of time such as thermistor, strain gauge, LVDT, thermo-couple etc. Digital transducer converts input signal into the output signal of th ...
... of output signal, may be classified into analog and digital transducers. Analog transducer converts input signal into output signal, which is a continuous function of time such as thermistor, strain gauge, LVDT, thermo-couple etc. Digital transducer converts input signal into the output signal of th ...
2SA1952
... conditions must be taken into account when designing circuits for mass production. 5) The technical information specified herein is intended only to show the typical functions of and examples of application circuits for the Products. ROHM does not grant you, explicitly or implicitly, any license to ...
... conditions must be taken into account when designing circuits for mass production. 5) The technical information specified herein is intended only to show the typical functions of and examples of application circuits for the Products. ROHM does not grant you, explicitly or implicitly, any license to ...
LTC3639 – High Efficiency, 150V 100mA Synchronous Step
... by connecting both VPRG1 and VPRG2 to ground. In adjustable mode the feedback comparator monitors the voltage on the VFB pin and compares it to an internal 800mV reference. If this voltage is greater than the reference, the comparator activates a sleep mode in which the power switches and current co ...
... by connecting both VPRG1 and VPRG2 to ground. In adjustable mode the feedback comparator monitors the voltage on the VFB pin and compares it to an internal 800mV reference. If this voltage is greater than the reference, the comparator activates a sleep mode in which the power switches and current co ...
Quick Guide MSO1000Z/DS1000Z Series Digital Oscilloscope
... Measurement category I is for measurements performed on circuits not directly connected to MAINS. Examples are measurements on circuits not derived from MAINS, and specially protected (internal) MAINS derived circuits. In the latter case, transient stresses are variable; for that reason, the transie ...
... Measurement category I is for measurements performed on circuits not directly connected to MAINS. Examples are measurements on circuits not derived from MAINS, and specially protected (internal) MAINS derived circuits. In the latter case, transient stresses are variable; for that reason, the transie ...
Landscape Lighting PowerPoint
... each light fixture on the system and buy a power pack that has a larger number. – 2. Power packs come with a variety of controllers, from manual switches to remote controlled, timer operated, and photocell activated. There are also motion detector/heat sensor controllers available which will trigger ...
... each light fixture on the system and buy a power pack that has a larger number. – 2. Power packs come with a variety of controllers, from manual switches to remote controlled, timer operated, and photocell activated. There are also motion detector/heat sensor controllers available which will trigger ...
How do you take the first step towards an energy efficient
... Comprehensive legislation has been passed in the European Union with the objective to reduce the energy consumption and therefore CO2 emissions. Energy usage and the efficiency of induction motors in the industrial environment is discussed in Part 11 of the EuP Directive (EuP = Energy Using Products ...
... Comprehensive legislation has been passed in the European Union with the objective to reduce the energy consumption and therefore CO2 emissions. Energy usage and the efficiency of induction motors in the industrial environment is discussed in Part 11 of the EuP Directive (EuP = Energy Using Products ...
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.