CT_CG_CGP_GS
... 3.2 The UL 1449 Voltage Protective Rating (VPR) shall be permanently affixed to the SPD unit. 3.3 The UL 1449 Nominal Discharge Surge Current Rating shall be a minimum of 20kA 3.4 The SCCR rating of the SPD shall be 200kAIC without requiring an upstream protective device for safe operation. 3.5 The ...
... 3.2 The UL 1449 Voltage Protective Rating (VPR) shall be permanently affixed to the SPD unit. 3.3 The UL 1449 Nominal Discharge Surge Current Rating shall be a minimum of 20kA 3.4 The SCCR rating of the SPD shall be 200kAIC without requiring an upstream protective device for safe operation. 3.5 The ...
DN188 - Inexpensive Circuit Charges Lithium-Ion Cells
... resistance of R11. By carefully selecting the values of R3, R7 and R9, one can produce an even larger negative output resistance and compensate for the internal resistance of the battery and its internal protection circuitry. The result is faster recharge times without exceeding the 4.1V limit withi ...
... resistance of R11. By carefully selecting the values of R3, R7 and R9, one can produce an even larger negative output resistance and compensate for the internal resistance of the battery and its internal protection circuitry. The result is faster recharge times without exceeding the 4.1V limit withi ...
Rapid Power MOSFET Switching
... A constraint for efficient power management circuits is speed at which power transistors can be switched and energy consumed in switching these transistors ON and OFF. Patent 7378898 teaches switching commonly employed MOSFET power transistors at high frequencies with reduced conduction and switchin ...
... A constraint for efficient power management circuits is speed at which power transistors can be switched and energy consumed in switching these transistors ON and OFF. Patent 7378898 teaches switching commonly employed MOSFET power transistors at high frequencies with reduced conduction and switchin ...
Full Article
... proven to be a threat to power consumers especially in large industries. Losses in terms of life, financial and productivity are the most common aftermath of power interruption. Hence, a smart power back-up and protection system has been developed. It is known as Uninterrupted Power Supplies (UPS) t ...
... proven to be a threat to power consumers especially in large industries. Losses in terms of life, financial and productivity are the most common aftermath of power interruption. Hence, a smart power back-up and protection system has been developed. It is known as Uninterrupted Power Supplies (UPS) t ...
Voltage Regulator Placement - WindMil
... reversible, allowing for raising (boosting) of the load voltage to 1.1 p.u., or lowering (bucking) to 0.9 p.u. as necessary. • Typically there are sixteen “taps” on the series winding, so each “step” is worth 10/16 or 5/8% correction per step. ...
... reversible, allowing for raising (boosting) of the load voltage to 1.1 p.u., or lowering (bucking) to 0.9 p.u. as necessary. • Typically there are sixteen “taps” on the series winding, so each “step” is worth 10/16 or 5/8% correction per step. ...
Electricity & Magnetism
... There are 2 types of circuits: Circuit – there are several branching paths to the components. If the circuit is broken at any one branch, only the components on that branch will turn off. ...
... There are 2 types of circuits: Circuit – there are several branching paths to the components. If the circuit is broken at any one branch, only the components on that branch will turn off. ...
P85324_ E50_MULTICANDELA_SPEAKER_SPEAKERSTROBE
... The Wheelock E50H Series High-Fidelity Multi-Candela Speaker Strobes are UL Listed under Standard 1971 for Signaling Devices for the Hearing Impaired, UL Standard 1480 for Speaker Appliances and ULC Listed under Standard CAN/ULC-S541-07 and CAN/ULC-S526-07 for indoor Fire Protective Service. They ar ...
... The Wheelock E50H Series High-Fidelity Multi-Candela Speaker Strobes are UL Listed under Standard 1971 for Signaling Devices for the Hearing Impaired, UL Standard 1480 for Speaker Appliances and ULC Listed under Standard CAN/ULC-S541-07 and CAN/ULC-S526-07 for indoor Fire Protective Service. They ar ...
40°C to 150°C Operating Junction Temperature Range
... -40°C to 150°C Operating Junction Temperature Range MILPITAS, CA – April 3, 2013 – Linear Technology Corporation announces the H-grade version of the LTC3722-1, a phase-modulated full bridge DC/DC controller with adaptive or manual zero voltage switching (ZVS). The device’s ZVS delay control and adj ...
... -40°C to 150°C Operating Junction Temperature Range MILPITAS, CA – April 3, 2013 – Linear Technology Corporation announces the H-grade version of the LTC3722-1, a phase-modulated full bridge DC/DC controller with adaptive or manual zero voltage switching (ZVS). The device’s ZVS delay control and adj ...
Microprocessor Core Supply Voltage Set by I2C Bus without VID Lines
... Microprocessor Core Supply Voltage Set by I2C Bus without VID Lines – Design Note 279 Mark Gurries Introduction Many modern CPUs run at two different clock speeds, where each speed requires a different core operating voltage to assure optimum performance. These voltages are documented in the manufac ...
... Microprocessor Core Supply Voltage Set by I2C Bus without VID Lines – Design Note 279 Mark Gurries Introduction Many modern CPUs run at two different clock speeds, where each speed requires a different core operating voltage to assure optimum performance. These voltages are documented in the manufac ...
technical manual (PDF 118kb)
... 70 deg. and severely capacity derated for high reliability. The printed circuit board is a 1.5mm reinforced fiberglass with double sided tracks and plated ...
... 70 deg. and severely capacity derated for high reliability. The printed circuit board is a 1.5mm reinforced fiberglass with double sided tracks and plated ...
Outline of New EEE 360
... energy conversion and utilization Course Outcomes: 1. Students understand electric energy conversion, transport, and utilization. 2. Students understand the operation of electric machines, such as motors and generators. 3. Students can analyze electric machine performance. 4. Students have knowledge ...
... energy conversion and utilization Course Outcomes: 1. Students understand electric energy conversion, transport, and utilization. 2. Students understand the operation of electric machines, such as motors and generators. 3. Students can analyze electric machine performance. 4. Students have knowledge ...
UNIT - I BASIC MEASUREMENT CONCEPTS PERMANENT
... A multimeter can be a hand-held device useful for basic fault finding and field service work or a bench instrument which can measure to a very high degree of accuracy. They can be used to troubleshoot electrical problems in a wide array of household devices such as possibly dead batteries, washi ...
... A multimeter can be a hand-held device useful for basic fault finding and field service work or a bench instrument which can measure to a very high degree of accuracy. They can be used to troubleshoot electrical problems in a wide array of household devices such as possibly dead batteries, washi ...
369faq_b1 - GE Grid Solutions
... to the production of a false residual current in the secondary or relay circuit. The common practice in medium and high voltage systems is to use low resistance grounding. By using the doughnut CT scheme, such systems offer the advantages of speed and reliability without much concern for starting cu ...
... to the production of a false residual current in the secondary or relay circuit. The common practice in medium and high voltage systems is to use low resistance grounding. By using the doughnut CT scheme, such systems offer the advantages of speed and reliability without much concern for starting cu ...
- Krest Technology
... Renewable energy sources, which are expected to be a promising alternative energy source, can bring new challenges when connected to the power grid. However, the generated power from renewable energy source is always fluctuating due to environmental conditions. In the same way, wind power injection ...
... Renewable energy sources, which are expected to be a promising alternative energy source, can bring new challenges when connected to the power grid. However, the generated power from renewable energy source is always fluctuating due to environmental conditions. In the same way, wind power injection ...
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.