Lectures. Direct current machi
... and is built up of a wedge-shaped segments of high conductivity hard drawn or drop forced copper. the segments are insulated from each other by thin layers of my mica and the number of segments is equal to the number of armature coils. Brushes collect current from the commutator. they are usually ma ...
... and is built up of a wedge-shaped segments of high conductivity hard drawn or drop forced copper. the segments are insulated from each other by thin layers of my mica and the number of segments is equal to the number of armature coils. Brushes collect current from the commutator. they are usually ma ...
Paxton ins
... Connect to a UL listed burglar alarm unit for supervision. A fire alarm system must be used to release all fire doors. External relay contacts are held closed by the fire alarm’s interface and will be dropped during an alarm condition. The system is fail safe as the door will release even if the cab ...
... Connect to a UL listed burglar alarm unit for supervision. A fire alarm system must be used to release all fire doors. External relay contacts are held closed by the fire alarm’s interface and will be dropped during an alarm condition. The system is fail safe as the door will release even if the cab ...
spark plugs for the home mechanic - OBD-II
... bad spark plug wires. To diagnose this kind of problem, professional technicians observe the firing pattern for each cylinder on an oscilloscope. A higher than normal firing voltage in any one cylinder may indicate excessive resistance in a plug wire, a loose plug wire, or a badly worn or misgapped ...
... bad spark plug wires. To diagnose this kind of problem, professional technicians observe the firing pattern for each cylinder on an oscilloscope. A higher than normal firing voltage in any one cylinder may indicate excessive resistance in a plug wire, a loose plug wire, or a badly worn or misgapped ...
a CMOS 3 V/5 V, Wide Bandwidth Quad 2:1 Mux ADG774
... suitable for switching USB 1.1 data signals and fast Ethernet signals. The on resistance profile is very flat over the full analog input range ensuring excellent linearity and low distortion when switching audio signals. Fast switching speed, coupled with high signal bandwidth, also makes the parts ...
... suitable for switching USB 1.1 data signals and fast Ethernet signals. The on resistance profile is very flat over the full analog input range ensuring excellent linearity and low distortion when switching audio signals. Fast switching speed, coupled with high signal bandwidth, also makes the parts ...
HMC174MS8 / 174MS8E
... The HMC174MS8 & HMC174MS8E are low-cost SPDT switches in 8-lead MSOP packages for use in transmit-receive applications which require very low distortion at high signal power levels. The device can control signals from DC to 3 GHz and is especially suited for cellular/3G and WiMAX applications with o ...
... The HMC174MS8 & HMC174MS8E are low-cost SPDT switches in 8-lead MSOP packages for use in transmit-receive applications which require very low distortion at high signal power levels. The device can control signals from DC to 3 GHz and is especially suited for cellular/3G and WiMAX applications with o ...
tesla 3000 power system recorder
... from the recorder) on DIN rails to simplify wiring and minimize rack space requirements. Optional clamp-on or split core current CTs available. The isolation modules provide scaling isolation and surge protection. Module outputs are low level voltage signals which feed directly into the recorder’s r ...
... from the recorder) on DIN rails to simplify wiring and minimize rack space requirements. Optional clamp-on or split core current CTs available. The isolation modules provide scaling isolation and surge protection. Module outputs are low level voltage signals which feed directly into the recorder’s r ...
ADM692A 数据手册DataSheet 下载
... When VCC is below the reset threshold, the higher of VCC or VBATT is connected to VOUT. 0 V. Ground reference for all signals. Power Fail Comparator Input. If PFI is less than 1.25 V, the power fail output PFO goes low. If unused, PFI should be connected to VCC or GND. Power Fail Comparator Output. ...
... When VCC is below the reset threshold, the higher of VCC or VBATT is connected to VOUT. 0 V. Ground reference for all signals. Power Fail Comparator Input. If PFI is less than 1.25 V, the power fail output PFO goes low. If unused, PFI should be connected to VCC or GND. Power Fail Comparator Output. ...
Lighting System Interconnection Levels
... the personal computer (PC) in the early 1980s can remember the lack of structure and standards among the start-ups. At their start, PCs were typically soldered conglomerates of parts and devices with little commonality between manufacturers. Eventually, the PCs began to be segmented into subcomponen ...
... the personal computer (PC) in the early 1980s can remember the lack of structure and standards among the start-ups. At their start, PCs were typically soldered conglomerates of parts and devices with little commonality between manufacturers. Eventually, the PCs began to be segmented into subcomponen ...
SN74F21 数据资料 dataSheet 下载
... Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, 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 ...
... Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, 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 ...
AN2030
... in a sensorless BLDC motor drive system. Since this direct back EMF sensing scheme requires minimum PWM “off” time to sample the back EMF signal, the duty cycle can't reach 100%. Also in some applications, i.e. HVAC using high inductance motors, we see the zero crossing detection is unsymmetrical in ...
... in a sensorless BLDC motor drive system. Since this direct back EMF sensing scheme requires minimum PWM “off” time to sample the back EMF signal, the duty cycle can't reach 100%. Also in some applications, i.e. HVAC using high inductance motors, we see the zero crossing detection is unsymmetrical in ...
Latex 3000 Printer Series Site Preparation Guide
... The circuit breakers must meet the requirements of the printer and should be in accordance with the Electrical Code requirements of the local jurisdiction of the country where the equipment is installed. The printer requires one or two branch circuit breakers, depending on the installation. NOTE: Th ...
... The circuit breakers must meet the requirements of the printer and should be in accordance with the Electrical Code requirements of the local jurisdiction of the country where the equipment is installed. The printer requires one or two branch circuit breakers, depending on the installation. NOTE: Th ...
Transient Voltage Suppressors
... reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or c ...
... reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or c ...
decoding onboard diagnostics
... bad spark plug wires. To diagnose this kind of problem, professional technicians observe the firing pattern for each cylinder on an oscilloscope. A higher than normal firing voltage in any one cylinder may indicate excessive resistance in a plug wire, a loose plug wire, or a badly worn or misgapped ...
... bad spark plug wires. To diagnose this kind of problem, professional technicians observe the firing pattern for each cylinder on an oscilloscope. A higher than normal firing voltage in any one cylinder may indicate excessive resistance in a plug wire, a loose plug wire, or a badly worn or misgapped ...
mc-4210 - h2s modbus addressable sensor
... The MC-4210-H2S Modbus Sensor may be installed in a variety of configurations to solve almost any gas sensor requirements. The monitor may be used in a Stand Alone 4 to 20 milliampere current loop output mode or a Stand Alone 0 to 3 VDC voltage output mode. When used in the voltage output mode, the ...
... The MC-4210-H2S Modbus Sensor may be installed in a variety of configurations to solve almost any gas sensor requirements. The monitor may be used in a Stand Alone 4 to 20 milliampere current loop output mode or a Stand Alone 0 to 3 VDC voltage output mode. When used in the voltage output mode, the ...
CONSTRUCTION AND MAINTENANCE OF HIGH VOLTAGE POWER TRANSFORMERS STAMATIOS VLACHOS
... Transformers for use at power or audio frequencies typically have cores made of high permeability silicon steel. The steel has a permeability many times that of free space, and the core thus serves to greatly reduce the magnetizing current, and confine the flux to a path which closely couples the wi ...
... Transformers for use at power or audio frequencies typically have cores made of high permeability silicon steel. The steel has a permeability many times that of free space, and the core thus serves to greatly reduce the magnetizing current, and confine the flux to a path which closely couples the wi ...
Mains electricity
Mains electricity is the general-purpose alternating-current (AC) electric power supply. In the US, electric power is referred to by several names including household power, household electricity, house current, powerline, domestic power, wall power, line power, AC power, city power, street power, and grid power.The two principal properties of the electric power supply, voltage and frequency, differ between regions. A voltage of (nominally) 230 V and a frequency of 50 Hz is used in Europe, most of Asia, most of South America and Australia. In North America, the most common combination is 120 V and a frequency of 60 Hz. Other voltages exist, and some countries may have, for example, 230 V but 60 Hz. This is a concern to travelers, since portable appliances designed for one voltage and frequency combination may not operate or may be destroyed by another.The use of different plugs and sockets in different regions provides some protection from accidental use of appliances with incompatible voltage and frequency requirements.