A switch converter that modifies the voltage of a DC power source using a transformer is known as a push-pull converter.
A push-pull converter can be identified by the fact that the transformer primary is supplied with current from the input line by pairs of transistors in a push-pull circuit that is symmetrical.
The transformer’s current is periodically reversed by periodically turning on and off the transistors. As a result, during both parts of the switching cycle, current is pulled from the line.
In general, any converter having bidirectional excitation of the transformer is referred to as push-pull. In a full-bridge converter, for instance, the switches (connected as an H-bridge) alternate the voltage across the transformer’s supply side, causing the transformer to operate as it would for AC power and generate a voltage on its output side.
Push-pull, however, is most frequently used to describe a two-switch architecture with a split primary winding.
The Global Push-pull DC-DC converter market accounted for $XX Billion in 2021 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2022 to 2030.
The SN6505x from Texas Instruments is a push-pull transformer driver with a very low voltage across and is intended specifically for small form factor, isolated power supplies.
It also features low noise and low EMI. It uses a DC power source ranging from 2.25 V to 5 V to drive low-profile, center-tapped transformers.
By slew rate controlling the output switch voltage and using spread spectrum clocking, ultra-low noise and EMI are made possible (SSC).
The SN6505x is made up of an oscillator and a gate drive circuit that generates the complimentary output signals required to operate ground-referenced N-channel power switches.
The device has two 1-A Power-MOSFET switches to ensure that it can start up even when under a lot of load.
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