Increasing High Speed Torque of Bipolar Stepper Motors
... drive. Power dissipated in the series resistors while the rotor holds position is 105 x 0.5 x 0.5 x 2 = 52.5W, while power dissipated in the entire drive is 60 x 0.5 x 2 = 60W. The drive efficiency approaches 12.5%. After looking at these numbers, the drive designer may opt to cut losses by using th ...
... drive. Power dissipated in the series resistors while the rotor holds position is 105 x 0.5 x 0.5 x 2 = 52.5W, while power dissipated in the entire drive is 60 x 0.5 x 2 = 60W. The drive efficiency approaches 12.5%. After looking at these numbers, the drive designer may opt to cut losses by using th ...
SN75154 数据资料 dataSheet 下载
... and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI’s te ...
... and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI’s te ...
TPS70702 数据资料 dataSheet 下载
... regulator 1) and is directly proportional to the output current. Additionally, because the PMOS pass element is a voltage-driven device, the quiescent current is very low and independent of output loading (maximum of 230µA over the full range of output current). This LDO family also features a sleep ...
... regulator 1) and is directly proportional to the output current. Additionally, because the PMOS pass element is a voltage-driven device, the quiescent current is very low and independent of output loading (maximum of 230µA over the full range of output current). This LDO family also features a sleep ...
UCC2808A-1Q1 数据资料 dataSheet 下载
... The UCC2808A is a family of BiCMOS push-pull, high-speed, low-power, pulse-width modulators. The UCC2808A contains all of the control and drive circuitry required for off-line or dc-to-dc fixed frequency current-mode switching power supplies with minimal external parts count. The UCC2808A dual outpu ...
... The UCC2808A is a family of BiCMOS push-pull, high-speed, low-power, pulse-width modulators. The UCC2808A contains all of the control and drive circuitry required for off-line or dc-to-dc fixed frequency current-mode switching power supplies with minimal external parts count. The UCC2808A dual outpu ...
Aalborg Universitet Autonomous Control of Inverter-Interfaced Distributed Generation Units for Harmonic
... Resistive-Active Power Filter (R-APF) is implemented based on a high-bandwidth current controller, where DG inverters are controlled to behave as resistors at harmonic frequencies, such that harmonic resonances and voltage distortions can be damped. To further autonomously share harmonic currents, a ...
... Resistive-Active Power Filter (R-APF) is implemented based on a high-bandwidth current controller, where DG inverters are controlled to behave as resistors at harmonic frequencies, such that harmonic resonances and voltage distortions can be damped. To further autonomously share harmonic currents, a ...
coach battery voltage and current meter monitor panel
... The Simpson voltmeter shown in Figure 2 in more detail is a modified Simpson P/N 17445 0 - 5 VDC meter. It was internally modified with additional electronic circuitry to convert it into an expanded scale 10 - 15 VDC meter. The scale markings on the meter then were changed as shown in Figure 2 to 10 ...
... The Simpson voltmeter shown in Figure 2 in more detail is a modified Simpson P/N 17445 0 - 5 VDC meter. It was internally modified with additional electronic circuitry to convert it into an expanded scale 10 - 15 VDC meter. The scale markings on the meter then were changed as shown in Figure 2 to 10 ...
MACRO AND MICRO SCALE ELECTROMAGNETIC KINETIC ENERGY HARVESTING GENERATORS
... and spacing should be selected to maximise flux linkage and the generator. As a general rule, the generators should be operated at maximum inertial mass displacement and should be designed such that this value is as large as possible. Of course, this can only be done with exact knowledge of the exci ...
... and spacing should be selected to maximise flux linkage and the generator. As a general rule, the generators should be operated at maximum inertial mass displacement and should be designed such that this value is as large as possible. Of course, this can only be done with exact knowledge of the exci ...
OPA843 Wideband, Low Distortion, Medium Gain, Voltage-Feedback OPERATIONAL AMPLIFIER DESCRIPTION
... The OPA843’s combination of speed and dynamic range is useful in a wide variety of application circuits, as long as simple guidelines common to all high-speed amplifiers are observed. For example, good power-supply decoupling, as shown in Figure 1, is essential to achieve the lowest possible harmoni ...
... The OPA843’s combination of speed and dynamic range is useful in a wide variety of application circuits, as long as simple guidelines common to all high-speed amplifiers are observed. For example, good power-supply decoupling, as shown in Figure 1, is essential to achieve the lowest possible harmoni ...
MAX1673 Regulated, 125mA-Output, Charge-Pump DC-DC Inverter ________________General Description
... requires only three small capacitors, and only two resistors to set its output voltage. The input range is 2V to 5.5V. The regulated output can be set from 0V to -VIN in Skip regulation mode or -1.5V to -VIN in Linear (LIN) regulation mode. In Skip mode, the MAX1673 regulates by varying its switchin ...
... requires only three small capacitors, and only two resistors to set its output voltage. The input range is 2V to 5.5V. The regulated output can be set from 0V to -VIN in Skip regulation mode or -1.5V to -VIN in Linear (LIN) regulation mode. In Skip mode, the MAX1673 regulates by varying its switchin ...
JEDEC STANDARD
... The second clause defines the minimum dc and ac input parametric requirements and ac test conditions for inputs on compliant devices. The third clause specifies the minimum required output characteristics of, and ac test conditions for, compliant outputs targeted for various application environments ...
... The second clause defines the minimum dc and ac input parametric requirements and ac test conditions for inputs on compliant devices. The third clause specifies the minimum required output characteristics of, and ac test conditions for, compliant outputs targeted for various application environments ...
Multi-Output Power Supply with VCOM Amplifier and High
... The MAX17114 generates all the supply rails for thin-film transistor liquid-crystal display (TFT LCD) TV panels operating from a regulated 12V input. It includes a stepdown and a step-up regulator, a positive and a negative charge pump, an operational amplifier, a high-accuracy, high-voltage gamma r ...
... The MAX17114 generates all the supply rails for thin-film transistor liquid-crystal display (TFT LCD) TV panels operating from a regulated 12V input. It includes a stepdown and a step-up regulator, a positive and a negative charge pump, an operational amplifier, a high-accuracy, high-voltage gamma r ...
EMI/RFI Suppression Capacitors
... EMI suppression capacitors are used to suppress any noise from an electronic device by reducing the input impedance of the device. These capacitors are divided into 2 classifications, X and Y. X class capacitors are capacitors that are connected line to line and in the event of failure of the capaci ...
... EMI suppression capacitors are used to suppress any noise from an electronic device by reducing the input impedance of the device. These capacitors are divided into 2 classifications, X and Y. X class capacitors are capacitors that are connected line to line and in the event of failure of the capaci ...
EEE202_Lec10
... • Op amps can be configured in many different ways using resistors and other components. • Amplifiers provide gains in voltage or current. • Op amps can convert current to voltage. • Op amps can provide a buffer between two circuits. • Op amps can be used to implement integrators and differentiators ...
... • Op amps can be configured in many different ways using resistors and other components. • Amplifiers provide gains in voltage or current. • Op amps can convert current to voltage. • Op amps can provide a buffer between two circuits. • Op amps can be used to implement integrators and differentiators ...
HMC199MS8 数据资料DataSheet下载
... The HMC199MS8 & HMC199MS8E are low-cost general purpose dual SPDT GaAs “bypass” switches in 8-lead MSOP packages covering DC to 2.5 GHz. These four-RF- port components integrate two SPDT switches and a through line onto a single IC. The designs provide low insertion loss of less than 0.5 dB while sw ...
... The HMC199MS8 & HMC199MS8E are low-cost general purpose dual SPDT GaAs “bypass” switches in 8-lead MSOP packages covering DC to 2.5 GHz. These four-RF- port components integrate two SPDT switches and a through line onto a single IC. The designs provide low insertion loss of less than 0.5 dB while sw ...
Stacked_Switches_MJB_V1
... • Initial rise of MOSFET gate-source voltage is well synchronized, in time, for all series MOSFETs – good!; • But triggering directly through a ferrite transformer core can result in “slow” switching of the MOSFET, due to both source impedance (~3A) and Miller capacitance of the MOSFET; • Beware: vo ...
... • Initial rise of MOSFET gate-source voltage is well synchronized, in time, for all series MOSFETs – good!; • But triggering directly through a ferrite transformer core can result in “slow” switching of the MOSFET, due to both source impedance (~3A) and Miller capacitance of the MOSFET; • Beware: vo ...
Speedmaster Variable Speed DC Control
... event of a shorted armature or if an armature line is shorted to earth ground. As long as 120 VAC input is connected properly, there is no additional fusing needed. For 240 VAC applications, an external fuse may be used in AC line 2 (P1-10). This fuse should be a Bussman ABC10 or LittleFuse 314-010. ...
... event of a shorted armature or if an armature line is shorted to earth ground. As long as 120 VAC input is connected properly, there is no additional fusing needed. For 240 VAC applications, an external fuse may be used in AC line 2 (P1-10). This fuse should be a Bussman ABC10 or LittleFuse 314-010. ...
Exp4-DCMotorFreqResp.. - MSU Engineering
... only in one direction but alternating between higher and lower speeds. This is achieved by keeping the marker on this knob at about 45 degrees (1st quadrant). Pulling the “Offset” knob allows an offset and pushing it in returns the offset to zero. 3. (There is a handout for the oscilloscope on the w ...
... only in one direction but alternating between higher and lower speeds. This is achieved by keeping the marker on this knob at about 45 degrees (1st quadrant). Pulling the “Offset” knob allows an offset and pushing it in returns the offset to zero. 3. (There is a handout for the oscilloscope on the w ...
WAM Ch2 - Heartland Community College
... under any legal theory, including lost profits, downtime, goodwill, damage to or replacement of equipment or property, or any costs of recovering, reprogramming, or reproducing any data stored in or used with Parallax products. Parallax is also not responsible for any personal damage, including that ...
... under any legal theory, including lost profits, downtime, goodwill, damage to or replacement of equipment or property, or any costs of recovering, reprogramming, or reproducing any data stored in or used with Parallax products. Parallax is also not responsible for any personal damage, including that ...
WECC-0100 TPL-001-WECC-CRT
... partially) and shifts its load to nearby elements in the system. Those nearby elements are then pushed beyond their capacity so they become overloaded and shift their load onto other elements. Cascading failure is a common effect seen in high voltage systems, where a single point of failure (SPF) on ...
... partially) and shifts its load to nearby elements in the system. Those nearby elements are then pushed beyond their capacity so they become overloaded and shift their load onto other elements. Cascading failure is a common effect seen in high voltage systems, where a single point of failure (SPF) on ...
QUD 2-Input NAND Gate
... The IL33197A is a wiper timer control device designed for use in harsh automotive applications. The device can perform the intermittent, after wash, and continuous wiper timer functions. The IL33197A is designed to directly drive a wiper motor relay. The IL33197A is suitable for both front and rear ...
... The IL33197A is a wiper timer control device designed for use in harsh automotive applications. The device can perform the intermittent, after wash, and continuous wiper timer functions. The IL33197A is designed to directly drive a wiper motor relay. The IL33197A is suitable for both front and rear ...
MAX1845 Dual, High-Efficiency, Step-Down Controller with Accurate Current Limit General Description
... step-down (buck) topologies that provides high efficiency, excellent transient response, and high DC output accuracy necessary for stepping down high-voltage batteries to generate low-voltage chipset and RAM power supplies in notebook computers. The CS_ inputs can be used with low-side sense resisto ...
... step-down (buck) topologies that provides high efficiency, excellent transient response, and high DC output accuracy necessary for stepping down high-voltage batteries to generate low-voltage chipset and RAM power supplies in notebook computers. The CS_ inputs can be used with low-side sense resisto ...
UT7R995 Clock Generator - Aeroflex Microelectronic Solutions
... disable the output clocks. Each clock output that is controlled by the sOE pin is synchronously enabled/disabled by the individual output clock. When HIGH, sOE disables all clocks except 2Q0 and 2Q1. When disabled, 1Q0, 1Q1, 3Q0, and 3Q1 will always enter a LOW state when PE/HD is MID or HIGH, and t ...
... disable the output clocks. Each clock output that is controlled by the sOE pin is synchronously enabled/disabled by the individual output clock. When HIGH, sOE disables all clocks except 2Q0 and 2Q1. When disabled, 1Q0, 1Q1, 3Q0, and 3Q1 will always enter a LOW state when PE/HD is MID or HIGH, and t ...
M-1 Mic Preamp M-2 Mic Preamp M-1 Personal Mic
... Transformerless designs are usually limited to maximum voltages equal to their power supply voltages, typically ±15V to ±18V. The 990C Discrete Op-Amp is faster, quieter, more powerful and better sounding than the typical monolithic opamps found in other equipment. Each individual (discrete) transis ...
... Transformerless designs are usually limited to maximum voltages equal to their power supply voltages, typically ±15V to ±18V. The 990C Discrete Op-Amp is faster, quieter, more powerful and better sounding than the typical monolithic opamps found in other equipment. Each individual (discrete) transis ...
Power electronics
Power electronics is the application of solid-state electronics to the control and conversion of electric power. It also refers to a subject of research in electronic and electrical engineering which deals with the design, control, computation and integration of nonlinear, time-varying energy-processing electronic systems with fast dynamics.The first high power electronic devices were mercury-arc valves. In modern systems the conversion is performed with semiconductor switching devices such as diodes, thyristors and transistors, pioneered by R. D. Middlebrook and others beginning in the 1950s. In contrast to electronic systems concerned with transmission and processing of signals and data, in power electronics substantial amounts of electrical energy are processed. An AC/DC converter (rectifier) is the most typical power electronics device found in many consumer electronic devices, e.g. television sets, personal computers, battery chargers, etc. The power range is typically from tens of watts to several hundred watts. In industry a common application is the variable speed drive (VSD) that is used to control an induction motor. The power range of VSDs start from a few hundred watts and end at tens of megawatts.The power conversion systems can be classified according to the type of the input and output power AC to DC (rectifier) DC to AC (inverter) DC to DC (DC-to-DC converter) AC to AC (AC-to-AC converter)