High frequency series resonant capacitor patent
Lossless gate driver circuit for a high frequency converter
A high efficiency gate driver circuit for driving a power switching device of a high frequency converter includes a series resonant circuit for making resonant transfers of energy...
High-frequency resonant converter design considerations, Part 2
Rogowski coil SR control enables accurate high-frequency SR sensing and control in a CLLLC-SRes-DAB converter. Adding an integrator after the Rogowski coil can generate a voltage that is in phase or even leading the original time-varying current.
Resonant circuit and high-frequency filter
As a result, a resonant circuit and a high-frequency filter supporting more communication signals are provided. A resonant circuit includes a resonator. An inductor is connected in parallel...
High efficient series resonant converter using direct power conversion
Fig. 2 shows the proposed series resonant ac–dc converter. It consists of the ac chopper with the switches S 1 –S 4, the transformer T with the primary winding turns N p and the secondary winding turns N s, and the series resonant circuit.The series resonant circuit is composed of the leakage inductance L lk of T and the resonant capacitor C r addition, the
High-frequency resonant heating capacitor
The utility model discloses a high-frequency resonant heating capacitor comprising a housing, an electrode and a capacitor cores consists of a plurality of capacitor unit cores...
Self-resonant Frequency and High Frequency
First series resonance (FSR) and first parallel resonance (FPR): These are the lowest rated frequency value at which S11 and S21 are rated for the capacitor in question. Here are two excellent sets of high
AUTOMATIC FREQUENCY CONTROL FOR SERIES RESONANT
A switched mode power supply comprises a half bridge circuit or a full bridge circuit. A resonant circuit is connected to the bridge circuit and comprises an inductive element (105, 208): end a capacitive element (106, 209) connected in series, whereby the resonant circuit has a resonant frequency. The rate of change of a voltage across the resonant circuit is
1.2: Passive components at high frequency
Adjust the frequency range to cover only the self resonance frequency and adjust the parasitic inductance until the self resonance frequency occurs near 12000 MHz (you don''t have to be exact). Then change the frequency range to view the (Q) at the three frequencies in the table (or add code to print out the values). You should find that the parasitic inductance must be about
High-frequency resonant converter design considerations, Part 2
Taking the inductor-inductor-capacitor-series resonant converter (LLC-SRC) in Figure 1 as an example, there are four common states (Figure 2) in a regular LLC-SRC design with given load conditions
US5638260A
For example, the power supply discussed in U.S. Pat. No. 5,121,314 (hereinafter "the ''314 patent") uses two operating modes in a fixed-frequency, series-resonant, high voltage capacitor charging power supply. The power supply of the ''314 patent operates in a first "full charge mode" at a 100% duty cycle with an open control loop to apply
US Patent Application for ON-PACKAGE HIGH-BANDWIDTH
The N:1 resonant star topology uses high self-resonant frequency capacitors and a small inductor which switches at, for example, 200 MHz. In some embodiments, the
US Patent Application for HIGH FREQUENCY AC POWER
In some embodiments, a high frequency alternating-current (HFAC) distribution network for a vehicle may include a plurality of HFAC zones coupled to a direct-current (DC) power source, the plurality of HFAC zones disbursed within the vehicle, wherein each HFAC zone comprises a HFAC resonant inverter to convert DC power to HFAC power
8 kJ/s high frequency capacitor charging power supply using
The use of IGBTs, a patent pending pulsewidth modulation control scheme for the series resonant inverters and a nominal 50 kHz resonant frequency make it possible to achieve regulation better than 0.1% for load rep-rates up to 2000 pps.
High Frequency, High Efficiency, and High Power Density GaN
Soft switching for both primary and secondary side devices is available by using LLC converters. This resonant converter is an ideal candidate for today''s high frequency, high efficiency, and high power density applications like adapters, Uninterrupted Power Supplies (UPS), Solid State Transformers (SST), electric vehicle battery chargers, renewable energy
US5638260A
More particularly, the present invention concerns a method for automatically controlling the output of a high voltage, parallel resonant mode power supply operating at a variable, non-audible...
8 kJ/s high frequency capacitor charging power supply using
An 8 kJ/s, high frequency, capacitor charging high voltage power supply (HVPS) combining series resonant technology and pulsewidth modulation has been developed at Maxwell Laboratories, Inc. The power supply charges a capacitor at a rate of 8 kJ/s, and has a regulation of <0.1% with an efficiency of >90%. The HVPS is comprised of the following modules; EMI
US Patent Application for HIGH FREQUENCY AC POWER
In some embodiments, a high frequency alternating-current (HFAC) distribution network for a vehicle may include a plurality of HFAC zones coupled to a direct-current (DC)
US Patent Application for ON-PACKAGE HIGH-BANDWIDTH RESONANT
The N:1 resonant star topology uses high self-resonant frequency capacitors and a small inductor which switches at, for example, 200 MHz. In some embodiments, the small inductor can be realized by parasitic inductance. The architecture of the N:1 resonant star topology allows for accommodating passive devices (e.g., capacitors) on a
High-Q Resonator with Integrated Capacitance for Resonance
the resonant frequencies for the series resonator are 12 MHz and 7.7 MHz respectively. Characterization of the resonator impedance shows that the prototype multi-layer parallel and series resonators with magnetic cores have quality factors of 835 and 838 respectively, about 1.5 times better than
US Patent for Lossless gate driver circuit for a high frequency
A high efficiency gate driver circuit for driving a power switching device of a high frequency converter includes a series resonant circuit for making resonant transfers of energy between
8 kJ/s high frequency capacitor charging power supply using
The use of IGBTs, a patent pending pulsewidth modulation control scheme for the series resonant inverters and a nominal 50 kHz resonant frequency make it possible to
US Patent Application for ON-PACKAGE HIGH-BANDWIDTH RESONANT
The N:1 resonant star topology uses high self-resonant frequency capacitors and a small inductor which switches at, for example, 200 MHz. In some embodiments, the small inductor can be realized by parasitic inductance. The architecture of the N:1 resonant star topology allows for accommodating passive devices (e.g., capacitors) on a package. As
US Patent for Lossless gate driver circuit for a high frequency
A high efficiency gate driver circuit for driving a power switching device of a high frequency converter includes a series resonant circuit for making resonant transfers of energy between the input capacitance of the power switching device and a storage capacitor to achieve substantially lossless gate switching. An ac switch couples the
High-frequency resonant converter design considerations, Part 2
Rogowski coil SR control enables accurate high-frequency SR sensing and control in a CLLLC-SRes-DAB converter. Adding an integrator after the Rogowski coil can generate a voltage that
The Role of Resonant Capacitors in Power Electronics
At that boundary, the equivalent series inductance (ESL) of the capacitor forms an LC resonance circuit with itself. This is referred to as self-resonance. Up to its self-resonant frequency, a capacitor acts like it''s
High-Q Resonator with Integrated Capacitance for Resonance
the resonant frequencies for the series resonator are 12 MHz and 7.7 MHz respectively. Characterization of the resonator impedance shows that the prototype multi-layer parallel and
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