micromaster 440
... Other functions not described in this document may be available. However, this fact shall not constitute an obligation to supply such functions with a new control, or when servicing. We have checked that the contents of this document correspond to the hardware and software described. There may be di ...
... Other functions not described in this document may be available. However, this fact shall not constitute an obligation to supply such functions with a new control, or when servicing. We have checked that the contents of this document correspond to the hardware and software described. There may be di ...
1. General Requirements
... The origin of this Technical Publication 77385 was in 1996. Prior to that point, power requirements for USWEST were contained in Module C of Technical Publication 77351. QWEST Communications, Inc. reserves the right to revise this document for any reason, including but not limited to, conformity wit ...
... The origin of this Technical Publication 77385 was in 1996. Prior to that point, power requirements for USWEST were contained in Module C of Technical Publication 77351. QWEST Communications, Inc. reserves the right to revise this document for any reason, including but not limited to, conformity wit ...
Power Equipment and Engineering Standards
... The origin of this Technical Publication 77385 was in 1996. Prior to that point, power requirements for USWEST were contained in Module C of Technical Publication 77351. QWEST Communications, Inc. reserves the right to revise this document for any reason, including but not limited to, conformity wit ...
... The origin of this Technical Publication 77385 was in 1996. Prior to that point, power requirements for USWEST were contained in Module C of Technical Publication 77351. QWEST Communications, Inc. reserves the right to revise this document for any reason, including but not limited to, conformity wit ...
Current measurement in power electronic and
... isolation needs, broad frequency bandwidth, linearity and stability with temperature variations, high immunity to dv/dt, low realization effort, fast response time, and compatibility with integration process are required to ensure high performance of current sensors. Various current sensing techniqu ...
... isolation needs, broad frequency bandwidth, linearity and stability with temperature variations, high immunity to dv/dt, low realization effort, fast response time, and compatibility with integration process are required to ensure high performance of current sensors. Various current sensing techniqu ...
AN2867 - STMicroelectronics
... Many designers know oscillators based on Pierce-Gate topology (hereinafter referred to as Pierce oscillators), but not all of them really understand how they operate, and only a few master their design. In practice, many of them do not even really pay attention to the oscillator design until they re ...
... Many designers know oscillators based on Pierce-Gate topology (hereinafter referred to as Pierce oscillators), but not all of them really understand how they operate, and only a few master their design. In practice, many of them do not even really pay attention to the oscillator design until they re ...
Load Cell Application and Test Guideline
... added to temperature compensate the cell’s performance, these are not shown for simplicity. A stable excitation voltage is applied to opposite corners of the Wheatstone bridge, and a signal is measured across the others, points A and B in Figure 3. With no load applied to the cell, all gages have th ...
... added to temperature compensate the cell’s performance, these are not shown for simplicity. A stable excitation voltage is applied to opposite corners of the Wheatstone bridge, and a signal is measured across the others, points A and B in Figure 3. With no load applied to the cell, all gages have th ...
IEEE Draft Guide for the Specification of Fixed Series Capacitor
... The purpose of this Guide is to provide general guidelines toward the preparation of a functional specification of transmission fixed series capacitor banks (FSC) using overvoltage protection based on three technologies: metal oxide varistors, metal oxide varistors with a forced bypass gap and thyri ...
... The purpose of this Guide is to provide general guidelines toward the preparation of a functional specification of transmission fixed series capacitor banks (FSC) using overvoltage protection based on three technologies: metal oxide varistors, metal oxide varistors with a forced bypass gap and thyri ...
E-MOSFET Characteristics and Parameters
... The conductivity of channel is enhanced by increase VGS and thus pulling more electrons into channel area. ...
... The conductivity of channel is enhanced by increase VGS and thus pulling more electrons into channel area. ...
HD61203 - Pacific Display Devices
... A 64-bit bidirectional shift register. The data is shifted from DL to DR when SHL is at high level and from DR to DL when SHL is at low level. In this case, CL2 is used as shift clock. The lowest order bit of the bidirectional shift register, which is on the DL side, corresponds to X1 and the highes ...
... A 64-bit bidirectional shift register. The data is shifted from DL to DR when SHL is at high level and from DR to DL when SHL is at low level. In this case, CL2 is used as shift clock. The lowest order bit of the bidirectional shift register, which is on the DL side, corresponds to X1 and the highes ...
EZ-PD™ CCG2 Datasheet USB Type
... accessory. Each of these inputs support operation over 4.0 to 5.5 V. An internal isolation between VCONN1 and VCONN2 pins is provided allowing them to be at different levels simultaneously. CCG2 can be used in EMCA applications with only one or both VCONN pins as power sources. This is illustrated l ...
... accessory. Each of these inputs support operation over 4.0 to 5.5 V. An internal isolation between VCONN1 and VCONN2 pins is provided allowing them to be at different levels simultaneously. CCG2 can be used in EMCA applications with only one or both VCONN pins as power sources. This is illustrated l ...
Subharmonic Mixers in CMOS Microwave Integrated Circuits Bradley Richard Jackson
... 4× subharmonic mixer regardless of circuit topology or fabrication technology. Furthermore, it achieves very high measured isolation between its ports (e.g. 4LO–RF : 59 dB). Since both the 2× and the 4× subharmonic mixers require a quadrature oscillator, a new oscillator circuit is presented that co ...
... 4× subharmonic mixer regardless of circuit topology or fabrication technology. Furthermore, it achieves very high measured isolation between its ports (e.g. 4LO–RF : 59 dB). Since both the 2× and the 4× subharmonic mixers require a quadrature oscillator, a new oscillator circuit is presented that co ...
DLP9000FLS 0.9 WQXGA Type A DMD (Rev. B)
... specific digital controller. The DLP9000XFLS must be driven by a single DLPC910 Controller and the DLP9000FLS must be driven by two DLPC900 Controllers. These dedicated chipsets provide robust, high resolution, high speed system solutions. ...
... specific digital controller. The DLP9000XFLS must be driven by a single DLPC910 Controller and the DLP9000FLS must be driven by two DLPC900 Controllers. These dedicated chipsets provide robust, high resolution, high speed system solutions. ...
875DP/500DP/500HV DUAL PULSE STORED ENERGY
... 1820 South Myrtle Avenue P.O. Box 5033 Monrovia, CA 91017-7133 Telephone: (626) 303-5676 FAX: ...
... 1820 South Myrtle Avenue P.O. Box 5033 Monrovia, CA 91017-7133 Telephone: (626) 303-5676 FAX: ...
POWER FEED® 10M WIRE FEEDER
... The business of The Lincoln Electric Company is manufacturing and selling high quality welding equipment, consumables, and cutting equipment. Our challenge is to meet the needs of our customers and to exceed their expectations. On occasion, purchasers may ask Lincoln Electric for advice or informati ...
... The business of The Lincoln Electric Company is manufacturing and selling high quality welding equipment, consumables, and cutting equipment. Our challenge is to meet the needs of our customers and to exceed their expectations. On occasion, purchasers may ask Lincoln Electric for advice or informati ...
DESIGN AND CONTROL OF A BIDIRECTIONAL DC/DC CONVERTER FOR
... powertrain of an electric vehicle. The objective is to develop an integral solution of DC/DC converter and control that supports bidirectional operation, in order to recover energy during regenerative braking. The proposed DC/DC converter topology is a bidirectional boost converter with output filte ...
... powertrain of an electric vehicle. The objective is to develop an integral solution of DC/DC converter and control that supports bidirectional operation, in order to recover energy during regenerative braking. The proposed DC/DC converter topology is a bidirectional boost converter with output filte ...
Impact Measurement Using Accelerometers
... applied to it. The accelerometer and the reference voltages are connected to a common supply; this yields a system that is ratiometric. By nature of this ratiometric system, variations in the voltage of the power supplied to the system will have no effect on the system accuracy. The liquid crystal d ...
... applied to it. The accelerometer and the reference voltages are connected to a common supply; this yields a system that is ratiometric. By nature of this ratiometric system, variations in the voltage of the power supplied to the system will have no effect on the system accuracy. The liquid crystal d ...
Aalborg Universitet Klimczak, Pawel
... were found, however not all of them are desired for high voltage gain applications. It’s found that converters based on an inductor and a coupled-inductor principle (a boost and a center tapped boost converters) as well as converters derived from isolated converters (a non-isolated flyback-boost, a ...
... were found, however not all of them are desired for high voltage gain applications. It’s found that converters based on an inductor and a coupled-inductor principle (a boost and a center tapped boost converters) as well as converters derived from isolated converters (a non-isolated flyback-boost, a ...
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.