A Dual-Band, Multi-standard, Concurrent LNA Using a Dual
... the response of the wide-band transconductance of the active device in the frequency domain to achieve matching and gain at the frequency of interest. This concept can be generalized to multiple frequency bands noting that the intrinsic transconductance of the active device is inherently wide-band a ...
... the response of the wide-band transconductance of the active device in the frequency domain to achieve matching and gain at the frequency of interest. This concept can be generalized to multiple frequency bands noting that the intrinsic transconductance of the active device is inherently wide-band a ...
Principles of Electronic Communication Systems
... Open or short-circuited transmission lines will show up on an SWR test. Other problems such as a cable that has been cut, short-circuited, or crushed between the transmitter and receiver can be located with a time domain reflectometer test. ...
... Open or short-circuited transmission lines will show up on an SWR test. Other problems such as a cable that has been cut, short-circuited, or crushed between the transmitter and receiver can be located with a time domain reflectometer test. ...
IOSR Journal of Applied Physics (IOSR-JAP)
... Abstract: The use of inverters in preference to generators as an alternative for un-interruptible power supply is gaining wide acceptability in developing countries, due to inverters’ greater environmental compatibility. However, the major challenge remains local production of sufficiently high powe ...
... Abstract: The use of inverters in preference to generators as an alternative for un-interruptible power supply is gaining wide acceptability in developing countries, due to inverters’ greater environmental compatibility. However, the major challenge remains local production of sufficiently high powe ...
17 A Low-Frequency Current Comparator For Precision Resistance
... with a SQUID as the magnetic field null-detector can be considered to be ultimately precise, i.e., the ratio error can be kept negligibly small by appropriate design. However, operation of a CCC is rather complicated and requires low temperature. Different from that, the DCC is a roomtemperature dev ...
... with a SQUID as the magnetic field null-detector can be considered to be ultimately precise, i.e., the ratio error can be kept negligibly small by appropriate design. However, operation of a CCC is rather complicated and requires low temperature. Different from that, the DCC is a roomtemperature dev ...
%BUB4IFFU Power line chokes Current-compensated ring core double chokes
... As a rule, EPCOS is either unfamiliar with individual customer applications or less familiar with them than the customers themselves. For these reasons, it is always ultimately incumbent on the customer to check and decide whether an EPCOS product with the properties described in the product specifi ...
... As a rule, EPCOS is either unfamiliar with individual customer applications or less familiar with them than the customers themselves. For these reasons, it is always ultimately incumbent on the customer to check and decide whether an EPCOS product with the properties described in the product specifi ...
control of air flow rate of single phase induction motor for
... motor torque capabilities will decrease. There are some exceptions to this rule which are described below. The base speed of the motor is proportional to supply frequency and is inversely proportional to the number of poles. So, by changing the supply frequency; the motor speed can be changed. Above ...
... motor torque capabilities will decrease. There are some exceptions to this rule which are described below. The base speed of the motor is proportional to supply frequency and is inversely proportional to the number of poles. So, by changing the supply frequency; the motor speed can be changed. Above ...
RFVC1836 数据资料DataSheet下载
... Product Description RFMD's RFVC1836 is a 5V InGaP MMIC VCO with an integrated frequency divider providing additional Fo/2 and Fo/4 outputs. With an Fo frequency range of 10.4GHz to 11.62GHz its monolithic structure provides excellent temperature, shock, and vibration performance. Output power (Fo) i ...
... Product Description RFMD's RFVC1836 is a 5V InGaP MMIC VCO with an integrated frequency divider providing additional Fo/2 and Fo/4 outputs. With an Fo frequency range of 10.4GHz to 11.62GHz its monolithic structure provides excellent temperature, shock, and vibration performance. Output power (Fo) i ...
Jun 1999 The LT1576: 200kHz, 1.5A Monolithic
... higher than the input voltage, allowing the switch to saturate. This boosted voltage is generated with an external capacitor, C2, and a diode, D2, as shown in Figure 2. The minimum boost voltage required to fully saturate the switch at maximum current has been reduced from 3.5V (LT1376) to 3V. Curre ...
... higher than the input voltage, allowing the switch to saturate. This boosted voltage is generated with an external capacitor, C2, and a diode, D2, as shown in Figure 2. The minimum boost voltage required to fully saturate the switch at maximum current has been reduced from 3.5V (LT1376) to 3V. Curre ...
Document
... • At very high frequencies, the junction capacitance of a transistor could introduce sufficient feedback from output to input to cause unwanted oscillations to take place in an amplifier. • Neutralization is used to cancel the oscillations by feeding back a portion of the output that has the opposit ...
... • At very high frequencies, the junction capacitance of a transistor could introduce sufficient feedback from output to input to cause unwanted oscillations to take place in an amplifier. • Neutralization is used to cancel the oscillations by feeding back a portion of the output that has the opposit ...
practice
... You need a current limiting resistor for a light-emitting diode (LED). The actual resistance is not critical at all. Out of the list below, which resistor tolerance would you select? ...
... You need a current limiting resistor for a light-emitting diode (LED). The actual resistance is not critical at all. Out of the list below, which resistor tolerance would you select? ...
App Notes > SIGNAL GENERATION CIRCUITS
... When the loop is in lock, PDI is in approximate phase quadrature with the output signal. Also when in lock, the duty cycle at PDO is 50%, and PDO's average output current is 250µA. The current sink at FADJ demands a constant 250µA, so PDO outputs above and below that level develop a bipolar error vo ...
... When the loop is in lock, PDI is in approximate phase quadrature with the output signal. Also when in lock, the duty cycle at PDO is 50%, and PDO's average output current is 250µA. The current sink at FADJ demands a constant 250µA, so PDO outputs above and below that level develop a bipolar error vo ...
Power over Ethernet
... (PSE). PSE controls the PoE port and it identifies PDs via detection and classification before powering the port. The big advantage of PoE is the elimination of the nuisance “wall wart” power converters. In this case, the need to install additional AC power outlets and connect electrical wires to ea ...
... (PSE). PSE controls the PoE port and it identifies PDs via detection and classification before powering the port. The big advantage of PoE is the elimination of the nuisance “wall wart” power converters. In this case, the need to install additional AC power outlets and connect electrical wires to ea ...
Datasheet
... Input-only transmitter unit (2 or 4 DI/PI, 1 AI) that can be connected to multi‑I/O and/or gateway units, up to 3000 units in a system ...
... Input-only transmitter unit (2 or 4 DI/PI, 1 AI) that can be connected to multi‑I/O and/or gateway units, up to 3000 units in a system ...
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.