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A microwave (6 to 18 GHz) Phase Shifter and Frequency Translator. A phase shift module is a microwave network module which provides a controllable phase shift of the RF signal. [1] [2] [3] Phase shifters are used in phased arrays. [4] [5] [6]
Distributed loaded-line TTD phase shifters, however, can be realized analogously or digitally, and in smaller form factors, which is important at the subarray level. Analog phase shifters are biased through a single bias line, whereas multibit digital phase shifters require a parallel bus along with complex routing schemes at the subarray level.
The digital/numeric relay was invented by George Rockefeller. [2] George conceived of it in his Master's Thesis in 1967–68 at Newark College of Engineering. [3] He published his seminal paper Fault Protection with a Digital Computer [4] in 1969. Westinghouse developed the first digital relay with the Prodar 70 [5] being developed between 1969 ...
An American Rotary Phase Converter with a Transformer. A phase converter is a device that converts electric power provided as single phase to multiple phase or vice versa. The majority of phase converters are used to produce three-phase electric power from a single-phase source, thus allowing the operation of three-phase equipment at a site that only has single-phase electrical service.
Phase-shift keying (PSK) is a digital modulation process which conveys data by changing (modulating) the phase of a constant frequency carrier wave. The modulation is accomplished by varying the sine and cosine inputs at a precise time.
Switched-mode power supplies have become widespread in the early twenty-first century; they are smaller and lighter than the once-universal transformer converters, and are often designed to work from AC mains at any voltage between 100 and 250 V. Additionally, because they are typically rectified to operate at a DC voltage, they are minimally ...
2 dual FET bus switch with extended voltage range (8) SN74CBT3305C: 74x3306 2 dual FET bus switch (8) SN74CBT3306: 74x3345 1 octal FET bus switch, dual output enable (20) SN74CBT3345: 74x3374 1 8-bit metastable-resistant D-type flip-flop three-state 20 SN74AS3374: 74x3383 1 5-bit 4-port FET bus exchange switch 24 IDT74FST3383: 74x3384 2
The longer the switch is on compared to the off periods, the higher the total power supplied to the load. The PWM switching frequency has to be much higher than what would affect the load (the device that uses the power), which is to say that the resultant waveform perceived by the load must be as smooth as possible.
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related to: digital phase shifter vs converter switch on 2 amp relayAverage: 4.7 out of 5 - 83,309 reviews - Power Reviews