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Resonant Transformer

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  • Circuit Ideas: High-efficiency dc/dc conversion
    and leakage inductance. The energy in both must be dumped into the effective capacitance across the transformer primary predominantly C . For a typical resonant reset waveform, this requires slightly more than a quarter of the period of the resonant frequency: = 1 /[ 2 (L as the inductor energy
  • Switching power supply design rules
    in a full-resonant converter. When the main switch, Q1, turns on, about a half cycle of current flows through the switch, transferring the energy from the input source to an LC circuit composed of Lr and Cr. The transformer here provides voltage scaling, electrical isolation from primary to secondary
  • Low Frequency Magnetic Transmitter Design
    of the main advantages of using low frequency. · A practical method for generating a magnetic field. magnetic communications are: is to create a serial resonant tank circuit. · Good field penetration capabilities - Can pene-. · Data transfer is, in turn, accomplished by ampli-. trate non-magnetic
  • Low-Frequency Magnetic Transmitter Design (.pdf)
    communications are: is to create a serial resonant tank circuit. · Good field penetration capabilities ­ Can. · Data transfer is, in turn, accomplished by. penetrate non-magnetic materials such as water,. amplitude modulation of the field. concrete, plastic, etc. (no line-of-sight required). · Basic data formats
  • Designing Loop Antennas for the rfPIC12F675
    the equation is rewritten as: Rd. C1. (a). Tap. Point. Driver. C. 1. 2. C1 = 4 2. 1. Z. 2L --. in. C. Circuit. C2. Representation. Typically C2 will be much larger than C1. In this case,. C1 tunes the resonant frequency while C2 indepen-. R. C. d. 1. dently tunes the antenna impedance. This makes. Rp. LLOOP
  • Antenna Circuit Design
    °. that falls off with r-3. This type of antenna is called a. 2 = 0°. magnetic dipole antenna. Equation 1 can be rewritten as: For 13.56 MHz passive tag applications, a few. microhenries of inductance and a few hundred pF of. EQUATION 2: resonant capacitor are typically used. The voltage. transfer between
  • Theory and Application of RF/Microwave Absorbers
    it. Absorber Forms. Magnetic-Magnetic absorbers utilize a filler with ferromagnetic properties. This gives the. absorber a high permeability and high magnetic loss. Advantages include the ability to. greatly compress the wavelength due to the high permeability enabling quarter wavelength. resonant

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