
TPS71812-33 数据资料 dataSheet 下载
... very low 90µA (typical) at no load ground current with both LDOs enabled. The TPS719xx also provides an active pulldown circuit to quickly discharge output loads. The TPS718xx and TPS719xx are stable with ceramic capacitors and use an advanced BiCMOS fabrication process to yield a typical dropout vo ...
... very low 90µA (typical) at no load ground current with both LDOs enabled. The TPS719xx also provides an active pulldown circuit to quickly discharge output loads. The TPS718xx and TPS719xx are stable with ceramic capacitors and use an advanced BiCMOS fabrication process to yield a typical dropout vo ...
EPM 6010 Power Metering System
... Figure 1.1). The neutral wire is typically tied to the ground or center point of the wye. In many industrial applications the facility will be fed with a four-wire wye service but only three wires will be run to individual loads. The load is then often referred to as a delta-connected load but the s ...
... Figure 1.1). The neutral wire is typically tied to the ground or center point of the wye. In many industrial applications the facility will be fed with a four-wire wye service but only three wires will be run to individual loads. The load is then often referred to as a delta-connected load but the s ...
Descriptive Bulletin 451-30
... for the 15-kV class Fault Tamer, 89022, 89032, 89042, 89052, 89072, 89092, and 89222 for both the 15-kV class Fault Tamer with extension adapter and the 25-kV class Fault Tamer, and 89033 and 89053 for 25-kV class Fault Tamer with extension adapter. A Fault Tamer that has operated can be easily iden ...
... for the 15-kV class Fault Tamer, 89022, 89032, 89042, 89052, 89072, 89092, and 89222 for both the 15-kV class Fault Tamer with extension adapter and the 25-kV class Fault Tamer, and 89033 and 89053 for 25-kV class Fault Tamer with extension adapter. A Fault Tamer that has operated can be easily iden ...
Piezoelectric accelerometers and vibration preamplifie
... the integration. Using an integration network effectively "throws away" information about the vibration. Obviouslythis is only acceptable if the lost information is not required for the purpose of the measurement. Acceleration should always be used if there is no reason for an integration. For examp ...
... the integration. Using an integration network effectively "throws away" information about the vibration. Obviouslythis is only acceptable if the lost information is not required for the purpose of the measurement. Acceleration should always be used if there is no reason for an integration. For examp ...
1746-HSCE2 - Qualitrol
... Terminals on the 4, 8, 12, and 16-channel modules have self-lifting pressure plates that accept two 14 AWG (2 mm2) wires. LED indicators on the front of each module display the status of each I/O point. 32-channel I/O modules are equipped with a 40-pin, MIL-C-83503 type header and a removable wiring ...
... Terminals on the 4, 8, 12, and 16-channel modules have self-lifting pressure plates that accept two 14 AWG (2 mm2) wires. LED indicators on the front of each module display the status of each I/O point. 32-channel I/O modules are equipped with a 40-pin, MIL-C-83503 type header and a removable wiring ...
MAX9321B Differential PECL/ECL/LVPECL/LVECL Receiver/Driver General Description
... An inverting input is obtained by connecting VBB to D and connecting the single-ended input to D. When using the VBB reference output, bypass it with a 0.01µF ceramic capacitor to VCC. If the VBB reference is not used, it can be left open. The VBB reference can source or sink 0.5mA. Use VBB only for ...
... An inverting input is obtained by connecting VBB to D and connecting the single-ended input to D. When using the VBB reference output, bypass it with a 0.01µF ceramic capacitor to VCC. If the VBB reference is not used, it can be left open. The VBB reference can source or sink 0.5mA. Use VBB only for ...
Circuit Breakers
... – Except, have three positions to allow power supply for an electrical component to be transferred from one source to another • Manual transfer switches may contain internal fuse protection ...
... – Except, have three positions to allow power supply for an electrical component to be transferred from one source to another • Manual transfer switches may contain internal fuse protection ...
lecture1425873259
... that the relay is either too sensitive or slow in responding. 1.4.5 Stability: It is the quality of any protection system to remain stable within a set of defined operating scenarios and procedures. For example the biased differential scheme of differential protection is more stable towards switchin ...
... that the relay is either too sensitive or slow in responding. 1.4.5 Stability: It is the quality of any protection system to remain stable within a set of defined operating scenarios and procedures. For example the biased differential scheme of differential protection is more stable towards switchin ...
8536 - Ministry of Commerce and Industry
... sometimes difficult to locate in standards." IEC 60146-1-1 Ed. 3.0 b:1991 Semiconductor convertors - General requirements and line commutated convertors - Part 1-1: Specifications of basic requirements Part 1-1: Specifications of basic requirements Specifies the requirements for the performance of a ...
... sometimes difficult to locate in standards." IEC 60146-1-1 Ed. 3.0 b:1991 Semiconductor convertors - General requirements and line commutated convertors - Part 1-1: Specifications of basic requirements Part 1-1: Specifications of basic requirements Specifies the requirements for the performance of a ...
Theory and Applications of Piezo Actuators and PZT
... value. Actuators using this effect first became available around 20 years ago and have changed the world of precision positioning. Piezoelectric actuators (PZTs) offer the user several benefits and advantages over other motion techniques: Repeatable nanometer and sub-nanometer sized steps at high fr ...
... value. Actuators using this effect first became available around 20 years ago and have changed the world of precision positioning. Piezoelectric actuators (PZTs) offer the user several benefits and advantages over other motion techniques: Repeatable nanometer and sub-nanometer sized steps at high fr ...
The EDM Fundamentals
... produces finer and smoother surface finishes. After roughing is completed, we will reduce the current, usually by half, and lower the on-time for shorter duration sparks. In this manner, we will orbit or skim the part to final size and finish. In the example of semi-finishing shown on the right, you ...
... produces finer and smoother surface finishes. After roughing is completed, we will reduce the current, usually by half, and lower the on-time for shorter duration sparks. In this manner, we will orbit or skim the part to final size and finish. In the example of semi-finishing shown on the right, you ...
to 1746-NI8 PDF for more information.
... Terminals on the 4, 8, 12, and 16-channel modules have self-lifting pressure plates that accept two 14 AWG (2 mm2) wires. LED indicators on the front of each module display the status of each I/O point. 32-channel I/O modules are equipped with a 40-pin, MIL-C-83503 type header and a removable wiring ...
... Terminals on the 4, 8, 12, and 16-channel modules have self-lifting pressure plates that accept two 14 AWG (2 mm2) wires. LED indicators on the front of each module display the status of each I/O point. 32-channel I/O modules are equipped with a 40-pin, MIL-C-83503 type header and a removable wiring ...
to 1746-IB16 PDF for more information.
... Terminals on the 4, 8, 12, and 16-channel modules have self-lifting pressure plates that accept two 14 AWG (2 mm2) wires. LED indicators on the front of each module display the status of each I/O point. 32-channel I/O modules are equipped with a 40-pin, MIL-C-83503 type header and a removable wiring ...
... Terminals on the 4, 8, 12, and 16-channel modules have self-lifting pressure plates that accept two 14 AWG (2 mm2) wires. LED indicators on the front of each module display the status of each I/O point. 32-channel I/O modules are equipped with a 40-pin, MIL-C-83503 type header and a removable wiring ...
Power Analyzer Your Partner For Network Analyzing Your Partner
... and configuration data. In addition, eleven LEDs serve to indicate menus and the status. Six buttons facilitate clearly structured navigation through the menus. For 100 / 400 V networks The MULTIMESS-Comfort can be applied in three-wire as well as four-wire networks. The unit can be implemented in 1 ...
... and configuration data. In addition, eleven LEDs serve to indicate menus and the status. Six buttons facilitate clearly structured navigation through the menus. For 100 / 400 V networks The MULTIMESS-Comfort can be applied in three-wire as well as four-wire networks. The unit can be implemented in 1 ...
to 1746-HSCE PDF for more information.
... Terminals on the 4, 8, 12, and 16-channel modules have self-lifting pressure plates that accept two 14 AWG (2 mm2) wires. LED indicators on the front of each module display the status of each I/O point. 32-channel I/O modules are equipped with a 40-pin, MIL-C-83503 type header and a removable wiring ...
... Terminals on the 4, 8, 12, and 16-channel modules have self-lifting pressure plates that accept two 14 AWG (2 mm2) wires. LED indicators on the front of each module display the status of each I/O point. 32-channel I/O modules are equipped with a 40-pin, MIL-C-83503 type header and a removable wiring ...
CHAPTER 6 Field Effect Transistors (FETs)
... JFET Biasing Circuit • Just as we learned that the bi-polar junction transistor must be biased for proper operation, the JFET also must be biased for operation. •Let’s look at some of the methods for biasing JFETs. •In most cases the ideal Q-point will be the middle of the transfer characteristic c ...
... JFET Biasing Circuit • Just as we learned that the bi-polar junction transistor must be biased for proper operation, the JFET also must be biased for operation. •Let’s look at some of the methods for biasing JFETs. •In most cases the ideal Q-point will be the middle of the transfer characteristic c ...
Variable-frequency drive

A variable-frequency drive (VFD) (also termed adjustable-frequency drive, variable-speed drive, AC drive, micro drive or inverter drive) is a type of adjustable-speed drive used in electro-mechanical drive systems to control AC motor speed and torque by varying motor input frequency and voltage.VFDs are used in applications ranging from small appliances to the largest of mine mill drives and compressors. However, around 25% of the world's electrical energy is consumed by electric motors in industrial applications, which are especially conducive for energy savings using VFDs in centrifugal load service, and VFDs' global market penetration for all applications is still relatively small. That lack of penetration highlights significant energy efficiency improvement opportunities for retrofitted and new VFD installations.Over the last four decades, power electronics technology has reduced VFD cost and size and has improved performance through advances in semiconductor switching devices, drive topologies, simulation and control techniques, and control hardware and software.VFDs are available in a number of different low- and medium-voltage AC-AC and DC-AC topologies.