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Brushless doubly-fed alternator (BDFA) has good application prospects in pulsed alternator. It works through the rotor’s pole pairs transformation function to get excitation indirectly. Since there are no brush and slip ring, BDFA is expected to have high reliability and long service life. This paper studies on the excitation control of BDFA in pulse capacitor charge power supply system. A mathematic...
When acquiring analog signal in industrial process control, the ground loop current and noise should be effectively eliminated to show the authenticity of the signal acquired. This is particularly important when sampling very small voltages (mV) or currents (mA) DC signal. This paper explains the design of a DC isolating transmitter for small signal. The transmitter is practical and consists of DC...
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