High linearity push-pull input stages of broadband DC amplifiers

Integrated-Antenna Push–Pull Power Amplifiers

In this paper, the integrated-antenna concept is applied to push–pull power amplifiers (PA’s). In this approach, the antenna serves as an out-of-phase power combiner and tuned load for higher harmonics. This new architecture effectively has a near-zero loss output hybrid, and results in a high-efficiency PA. The first example is a narrow-band push–pull amplifier integrated with a dual-feed patc...

A Three-Phase Current-Fed Push–Pull DC–DC Converter

In this paper, a new three-phase current-fed push– pull dc–dc converter is proposed. This converter uses a highfrequency three-phase transformer that provides galvanic isolation between the power source and the load. The three active switches are connected to the same reference, which simplifies the gate drive circuitry. Reduction of the input current ripple and the output voltage ripple is ach...

A novel resonant transition push–pull DC-DC converter

In hard-switched converters, the switching frequency is limited by switching losses and EMI problems. However, high-switching frequency is necessary to reduce the converter size. Hence, soft switching is imperative at high switching frequency to obtain good efficiency. Push–pull converter is a preferred topology at medium power level. This paper proposes a novel resonant transition topology for...

Isolated Switched Boost Push Pull DC-DC Step-up Converter

An isolated switched high step up boost DC-DC converter is discussed in this paper. The main objective of this paper is to step up low voltage to very high voltage. This paper mainly initiates at boosting a 30V DC into 240V DC. The discussed converter benefits from the continuous input current. Usually, step-up DC-DC converters are suitable for input whose voltage level is very low. The circuit...

Complementary Push-Pull Amplifiers for Active Antennas: A Critical Review