2results about How to "Improve system compatibility" patented technology

This invention discloses a DC-DC converter and control method based on coupled inductors, comprising a capacitor connected in parallel across the low-voltage side; the capacitor is also connected in parallel across the high-voltage side; the coupled inductor module includes a first winding and a second winding mounted on the same magnetic core, one end of the first winding being connected to the midpoint of a first switch and a second switch, and one end of the second winding being connected to the midpoint of a third switch and a fourth switch; the other ends of the first winding and the second winding are connected to form a common connection point, which is connected to a reference potential terminal on the high-voltage side; the high-voltage side transmits electrical energy to the high-voltage side through the first bridge arm, the second bridge arm, and the coupled inductor module; this invention winds two inductors on the same magnetic core to form mutual inductance, replacing two independent filter inductors or energy storage inductors in traditional circuits with coupled inductors, significantly reducing the size and weight of magnetic devices and increasing power density.

This utility model relates to the field of IoT intelligent control technology, and in particular to a display control circuit applied to a smart cloud box device. It includes a CPU module, a WIFI / Bluetooth module, a display module, an audio codec module, an audio amplifier module, a transceiver module, a power supply module, and a step-down module. The WIFI / Bluetooth module, display module, audio codec module, audio amplifier module, transceiver module, and step-down module are all electrically connected to the CPU module. The CPU module uses an RK3399 processor chip, the display module uses a TC358772XBG display bridge chip, and the step-down module is also electrically connected to the power supply module. Through the organic combination of multiple modules, this display control circuit comprehensively solves the problem of insufficient display functionality in smart cloud boxes, improving display effect, response speed, and system compatibility.