TPS61161-Q1 数据资料 dataSheet 下载
... Open LED protection circuitry prevents IC damage as the result of white LED disconnection. The TPS61161 monitors the voltage at the SW pin and FB pin during each switching cycle. The circuitry turns off the switch FET and shuts down the IC as soon as the SW voltage exceeds the Vovp threshold and the ...
... Open LED protection circuitry prevents IC damage as the result of white LED disconnection. The TPS61161 monitors the voltage at the SW pin and FB pin during each switching cycle. The circuitry turns off the switch FET and shuts down the IC as soon as the SW voltage exceeds the Vovp threshold and the ...
Basic Electrical Circuits
... (1) Conductor Fill - Each conductor that originates outside the box and terminates or is spliced within the box shall be counted once. (2) Clamp Fill - ….. No allowance shall be required for a cable connector with its clamping mechanism outside the box. (3) Support Fittings Fill – Luminaire studs or ...
... (1) Conductor Fill - Each conductor that originates outside the box and terminates or is spliced within the box shall be counted once. (2) Clamp Fill - ….. No allowance shall be required for a cable connector with its clamping mechanism outside the box. (3) Support Fittings Fill – Luminaire studs or ...
Megablock section-Rev8-CCH.indd
... Shown above is an example of a common Fieldbus segment topology. Eight field devices are connected to an eight-drop Megablock, which is mounted in a field junction box. One trunk connector on the Megablock is wired to a Megablock Terminator and the other to the segment trunk cable that leads to the ...
... Shown above is an example of a common Fieldbus segment topology. Eight field devices are connected to an eight-drop Megablock, which is mounted in a field junction box. One trunk connector on the Megablock is wired to a Megablock Terminator and the other to the segment trunk cable that leads to the ...
BDTIC www.BDTIC.com/infineon E l e c t r i c ...
... one channel is not ready (e.g. in undervoltage lockout). Otherwise, if the others continue with switching operation, it will take typically only few µs until the transformer saturates and generates the next failure – a short circuit (worst case repetitive). In order to avoid such failures, it is com ...
... one channel is not ready (e.g. in undervoltage lockout). Otherwise, if the others continue with switching operation, it will take typically only few µs until the transformer saturates and generates the next failure – a short circuit (worst case repetitive). In order to avoid such failures, it is com ...
MAX9647/MAX9648 General-Purpose, Low-Voltage, Tiny Pack Comparators EVALUATION KIT AVAILABLE
... The MAX9647/MAX9648 comparators are drop-in, pin-forpin compatible replacements for the LMX331/LMX331H. The MAX9648 has the added benefit of internal hysteresis to provide noise immunity, preventing output oscillations even with slow moving input signals. Advantages of the ICs include low supply vol ...
... The MAX9647/MAX9648 comparators are drop-in, pin-forpin compatible replacements for the LMX331/LMX331H. The MAX9648 has the added benefit of internal hysteresis to provide noise immunity, preventing output oscillations even with slow moving input signals. Advantages of the ICs include low supply vol ...
19 V - 75 W laptop adapter with tracking boost PFC pre
... protection in case of feedback network failure, while the thermistor R58 provides for a thermal protection of the power MOSFET (Q5). This pin is also connected to the PWM_LATCH pin of the L6563 which is dedicated to stopping activity of the flyback converter in case of PFC loop failure that could be ...
... protection in case of feedback network failure, while the thermistor R58 provides for a thermal protection of the power MOSFET (Q5). This pin is also connected to the PWM_LATCH pin of the L6563 which is dedicated to stopping activity of the flyback converter in case of PFC loop failure that could be ...
UCC27200 数据资料 dataSheet 下载
... Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to a ...
... Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to a ...
what you should know about scr power controllers - McGoff
... The electronic circuit controls the operation of the SCRs such that the desired energy applied to the load is proportional to the command signal. Important tasks of the circuit include: Timing: It is imperative, particularly in applications involving inductive loads such as transformers, that no DC ...
... The electronic circuit controls the operation of the SCRs such that the desired energy applied to the load is proportional to the command signal. Important tasks of the circuit include: Timing: It is imperative, particularly in applications involving inductive loads such as transformers, that no DC ...
Introduction to Motor Starting Analysis
... settings for distribution transformers and larger than standard conductor-sized cable, can also be readily evaluated. On a complex power system, this type of detailed analysis is very difficult to accomplish with time-consuming hand solution methods. Several methods of minimizing voltage dip on start ...
... settings for distribution transformers and larger than standard conductor-sized cable, can also be readily evaluated. On a complex power system, this type of detailed analysis is very difficult to accomplish with time-consuming hand solution methods. Several methods of minimizing voltage dip on start ...
OPA4188 0.03-μV/°C Drift, Low-Noise, Rail-to
... Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. Input terminals are diode-clamped to the power-supply rails. Input signals that can swing more than 0.5-V beyond the supply rails should be current-limited to 10 mA or less. Short- ...
... Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. Input terminals are diode-clamped to the power-supply rails. Input signals that can swing more than 0.5-V beyond the supply rails should be current-limited to 10 mA or less. Short- ...
说明书ZX7-400.500.630IGBT Inverter DC Arc Welding Machine
... yellow-green wire which on the back of the machine. The wire CSA should no less than the following ...
... yellow-green wire which on the back of the machine. The wire CSA should no less than the following ...
high resistance grounding – avoiding
... D. Grounding of UPS Bypass Input and Inverter Output Large UPS systems often have a bypass input power source that is separate from the rectifier input power source, for extra reliability. In the late 1990s such a single-module system was installed in a data center in Toronto, Canada, rated 600V. Bo ...
... D. Grounding of UPS Bypass Input and Inverter Output Large UPS systems often have a bypass input power source that is separate from the rectifier input power source, for extra reliability. In the late 1990s such a single-module system was installed in a data center in Toronto, Canada, rated 600V. Bo ...
An Interleaved Totem-Pole Power Factor Correction
... Switches on the Fig. 4 can be grouped into positive-phase group (S2 and S4 ) and negativephase group (S1 and S3 ). The positive-phase group operates as boost-switches during positive phase Vi . During this period, body-diodes of the negativephase group act as the catch diode. In this phase, return c ...
... Switches on the Fig. 4 can be grouped into positive-phase group (S2 and S4 ) and negativephase group (S1 and S3 ). The positive-phase group operates as boost-switches during positive phase Vi . During this period, body-diodes of the negativephase group act as the catch diode. In this phase, return c ...
DRV8870 3.6-A Brushed DC Motor Driver (PWM
... how much load torque is applied. For guidelines on selecting a sense resistor, see the Sense Resistor section. When ITRIP is reached, the device enforces slow current decay by enabling both low-side FETs, and it does this for a time of tOFF (typically 25 µs). ...
... how much load torque is applied. For guidelines on selecting a sense resistor, see the Sense Resistor section. When ITRIP is reached, the device enforces slow current decay by enabling both low-side FETs, and it does this for a time of tOFF (typically 25 µs). ...
MAX1762/MAX1791 High-Efficiency, 10-Pin µMAX, Step-Down Controllers for Notebooks General Description
... Maxim’s proprietary Quick-PWM™ pulse-width modulator is a free-running constant on-time type with input feed-forward. Its high operating frequency (300kHz) allows small external components to be utilized in PC board area-critical applications such as subnotebook computers and smart phones. PWM opera ...
... Maxim’s proprietary Quick-PWM™ pulse-width modulator is a free-running constant on-time type with input feed-forward. Its high operating frequency (300kHz) allows small external components to be utilized in PC board area-critical applications such as subnotebook computers and smart phones. PWM opera ...
The Different Types of AC Power Connectors in North America
... are shown in the tables. For example, an equipment component that operates at 2600 VA, if rated for 120 volts, would require a 30 amp connector. If rated for 208 volts, the component would require a 20 amp connector. Abbreviations are used to describe characteristics of the plugs. P refers to the pl ...
... are shown in the tables. For example, an equipment component that operates at 2600 VA, if rated for 120 volts, would require a 30 amp connector. If rated for 208 volts, the component would require a 20 amp connector. Abbreviations are used to describe characteristics of the plugs. P refers to the pl ...
protection in transformer - dvl ? panchal
... expert system, based on specific application, to study the structure and key technologies of power transformer further. The most important issues of fault diagnosis expert system are knowledge representation and reasoning mechanism. According to the characteristics that human experts diagnose the fa ...
... expert system, based on specific application, to study the structure and key technologies of power transformer further. The most important issues of fault diagnosis expert system are knowledge representation and reasoning mechanism. According to the characteristics that human experts diagnose the fa ...
Electrical substation
A substation is a part of an electrical generation, transmission, and distribution system. Substations transform voltage from high to low, or the reverse, or perform any of several other important functions. Between the generating station and consumer, electric power may flow through several substations at different voltage levels.Substations may be owned and operated by an electrical utility, or may be owned by a large industrial or commercial customer. Generally substations are unattended, relying on SCADA for remote supervision and control.A substation may include transformers to change voltage levels between high transmission voltages and lower distribution voltages, or at the interconnection of two different transmission voltages. The word substation comes from the days before the distribution system became a grid. As central generation stations became larger, smaller generating plants were converted to distribution stations, receiving their energy supply from a larger plant instead of using their own generators. The first substations were connected to only one power station, where the generators were housed, and were subsidiaries of that power station.