Golden Rules for Low Emission
... EMC guidelines at PCB level Ensuring Signal integrity – Rule 2 Control the characteristic impedance of (2-conductor) transmission line (PCB track, package) avoid line discontinuities ...
... EMC guidelines at PCB level Ensuring Signal integrity – Rule 2 Control the characteristic impedance of (2-conductor) transmission line (PCB track, package) avoid line discontinuities ...
Prognostic and Warning System for Power-Electronic Modules in Electric, Hybrid Electric,
... We have developed an accelerated stress-testing system to conduct a power-cycling test on power modules. The purpose of a power-cycling test is to emulate the operation of a power module in actual vehicles by subjecting the module to a series of power pulses. Our power-cycling test system consists o ...
... We have developed an accelerated stress-testing system to conduct a power-cycling test on power modules. The purpose of a power-cycling test is to emulate the operation of a power module in actual vehicles by subjecting the module to a series of power pulses. Our power-cycling test system consists o ...
MAX2021EVKIT.pdf
... heat from the device and provides a low-impedance electrical connection to the ground plane. The EP must be attached to the PCB ground plane with a low thermal and electrical impedance contact. Ideally, this is achieved by soldering the backside of the package directly to a top metal ground plane on ...
... heat from the device and provides a low-impedance electrical connection to the ground plane. The EP must be attached to the PCB ground plane with a low thermal and electrical impedance contact. Ideally, this is achieved by soldering the backside of the package directly to a top metal ground plane on ...
Integrating EMI Filters and Appliance Motor Controls
... is still the predominant motor at the present time for applications below 1HP and requiring high speed. Although it has lower life than its brushless counterparts, Universal motors are well suited for low duty cycle applications where motor efficiency is not as critical. The control of a universal m ...
... is still the predominant motor at the present time for applications below 1HP and requiring high speed. Although it has lower life than its brushless counterparts, Universal motors are well suited for low duty cycle applications where motor efficiency is not as critical. The control of a universal m ...
Redi-Flo Variable Frequency Drive Manual
... • For best performance when operating on a generator, 115V generators should be set at 120V without load and 230V generators should be set at 240V without load. Use a separate meter to set voltage; do not rely on ...
... • For best performance when operating on a generator, 115V generators should be set at 120V without load and 230V generators should be set at 240V without load. Use a separate meter to set voltage; do not rely on ...
Weston 4 Interim Relay Requirements
... such as the Carrington Event of 1859. Degradation effects on the transformers were not studied, but will be assessed in future system studies as more information becomes available. These simulations were then used to test the effectiveness of GIC blocking devices. It was demonstrated that approximat ...
... such as the Carrington Event of 1859. Degradation effects on the transformers were not studied, but will be assessed in future system studies as more information becomes available. These simulations were then used to test the effectiveness of GIC blocking devices. It was demonstrated that approximat ...
HMC641 数据资料DataSheet下载
... The HMC641 is a broadband non-reflective GaAs PHEMT SP4T switch chip. Covering DC to 18 GHz, this switch offers high isolation and low insertion loss and extends the frequency coverage of Hittite’s SP4T switch product line. This switch also includes an on board binary decoder circuit which reduces t ...
... The HMC641 is a broadband non-reflective GaAs PHEMT SP4T switch chip. Covering DC to 18 GHz, this switch offers high isolation and low insertion loss and extends the frequency coverage of Hittite’s SP4T switch product line. This switch also includes an on board binary decoder circuit which reduces t ...
High-Availability Power Systems, Part I
... accepted method of providing this isolation. But some products make the transformer an extracost (and extra-floor-space) option. ...
... accepted method of providing this isolation. But some products make the transformer an extracost (and extra-floor-space) option. ...
SEL-734 Data Sheet
... SEL supplies several types of test block as accessories for the SEL-734. The 4600 series test blocks and plugs ensure safety with current shorting and voltage isolation to protect the user and speed testing. Upon request, SEL will prewire the SEL-734 to a test switch installed in a rack mount bracke ...
... SEL supplies several types of test block as accessories for the SEL-734. The 4600 series test blocks and plugs ensure safety with current shorting and voltage isolation to protect the user and speed testing. Upon request, SEL will prewire the SEL-734 to a test switch installed in a rack mount bracke ...
FSQ0465RS/RB Green-Mode Fairchild Power Switch (FPS™) for Quasi-Resonant Operation -
... control, as shown in Figure 23. An opto-coupler (such as the FOD817A) and shunt regulator (such as the KA431) are typically used to implement the feedback network. Comparing the feedback voltage with the voltage across the Rsense resistor makes it possible to control the switching duty cycle. When t ...
... control, as shown in Figure 23. An opto-coupler (such as the FOD817A) and shunt regulator (such as the KA431) are typically used to implement the feedback network. Comparing the feedback voltage with the voltage across the Rsense resistor makes it possible to control the switching duty cycle. When t ...
SMV Manual - Lectrosonics.com
... • Programmable compatibility modes for use with a wide variety of different receivers The Digital Hybrid Wireless® design (US Patent 7,225,135) combines 24-bit digital audio with analog FM resulting in a system that has the same operating range as analog systems, the same spectral efficiency as ana ...
... • Programmable compatibility modes for use with a wide variety of different receivers The Digital Hybrid Wireless® design (US Patent 7,225,135) combines 24-bit digital audio with analog FM resulting in a system that has the same operating range as analog systems, the same spectral efficiency as ana ...
An Analog Electronic Cochlea --------
... of small bones or middle ear ossicles couple sound from the eardrum (tympanic membrane) into one of the windows, called the oval window. When the oval window is pushed in by a sound wave, the fluid in the cochlea moves, the partition between the ducts distorts, and the fluid bulges back out through ...
... of small bones or middle ear ossicles couple sound from the eardrum (tympanic membrane) into one of the windows, called the oval window. When the oval window is pushed in by a sound wave, the fluid in the cochlea moves, the partition between the ducts distorts, and the fluid bulges back out through ...
G. Hassan, D.J. Perreault, and T.A. Keim, “Design of Dual-Output Alternators with Switched-Mode Rectification,” IEEE Transactions on Power Electronics , Vol. 20, No. 1, Jan. 2005, pp. 164-172.
... rectifier must incorporate bypass capacitors (not shown) across each of the outputs. These capacitors ensure that the high-frequency ripple currents generated by the rectifier are returned internally with low impedance. While the numerical values and size of these capacitors can be relatively small ...
... rectifier must incorporate bypass capacitors (not shown) across each of the outputs. These capacitors ensure that the high-frequency ripple currents generated by the rectifier are returned internally with low impedance. While the numerical values and size of these capacitors can be relatively small ...
LT5521 - Very High Linearity Active Mixer.
... are internally connected to the Exposed Pad for improved isolation. They should be connected to RF ground on the printed circuit board, and are not intended to replace the primary grounding through the backside of the package. IN+, IN– (Pins 2, 3): Differential Input Pins. Each pin requires a resist ...
... are internally connected to the Exposed Pad for improved isolation. They should be connected to RF ground on the printed circuit board, and are not intended to replace the primary grounding through the backside of the package. IN+, IN– (Pins 2, 3): Differential Input Pins. Each pin requires a resist ...
SMJE 2103
... 2) Both have same phase sequence. 3) Output phase angles are same. 4) Must have a slightly higher frequency for new generator. It will change slowly. ...
... 2) Both have same phase sequence. 3) Output phase angles are same. 4) Must have a slightly higher frequency for new generator. It will change slowly. ...
CC1070 - Texas Instruments
... 449, 469, 868 and 915 MHz, but can easily be programmed for multi-channel operation at other frequencies in the 402 470 and 804 - 940 MHz range. ...
... 449, 469, 868 and 915 MHz, but can easily be programmed for multi-channel operation at other frequencies in the 402 470 and 804 - 940 MHz range. ...
power quality guidebook
... application can be tricky. Experienced and dedicated sales representatives, along with award-winning online tools, help you make the right choice, every time. Representatives are available around the world for stock and support help. ...
... application can be tricky. Experienced and dedicated sales representatives, along with award-winning online tools, help you make the right choice, every time. Representatives are available around the world for stock and support help. ...
Utility frequency
The utility frequency, (power) line frequency (American English) or mains frequency (British English) is the frequency of the oscillations of alternating current (AC) in an electric power grid transmitted from a power plant to the end-user. In large parts of the world this is 50 Hz, although in the Americas and parts of Asia it is typically 60 Hz. Current usage by country or region is given in the list of mains power around the world.During the development of commercial electric power systems in the late 19th and early 20th centuries, many different frequencies (and voltages) had been used. Large investment in equipment at one frequency made standardization a slow process. However, as of the turn of the 21st century, places that now use the 50 Hz frequency tend to use 220–240 V, and those that now use 60 Hz tend to use 100–127 V. Both frequencies coexist today (Japan uses both) with no great technical reason to prefer one over the other and no apparent desire for complete worldwide standardization.Unless specified by the manufacturer to operate on both 50 and 60 Hz, appliances may not operate efficiently or even safely if used on anything other than the intended frequency.