3results about How to "Save PCB area" patented technology

The utility model discloses a UPS energy storage switch, it includes the switch mainboard and power board of mutual electricity connection. The power board includes AC input module, rectifier module, boost and buck module, battery charging circuit and DC side protection unit. The battery charging circuit is connected in parallel at the output of boost and buck module, and the boost and buck module includes the voltage reduction unit for converting the AC power output of rectifier module into low voltage DC and the boost module for converting low voltage DC into 52V DC, and the boost module outputs 52V voltage to 52V bus, and the battery charging circuit includes battery and bidirectional Buck-Boost controller, and the boost and buck module and battery charging circuit share 52V bus. The application provides a kind of integrated, miniaturization, AC and DC double input and self battery management switch power supply scheme, by designing battery charging circuit and boost and buck module parallel sharing 52V bus and control chip, device multiplexing rate is high, PCB area reduces 30%, and cost is low.

The present application relates to a kind of double-channel low-voltage ideal diode, including two independent and same structure channel, the power PMOS tube of each channel is integrated, gate drive circuit, current sampling circuit, programmable current limiting circuit, temperature detection circuit and undervoltage lockout circuit.The present application is adjusted by gate drive circuit intelligent degree of power tube conduction, maintain about 15mV ultra-low conduction voltage drop when light load, more than 90% lower than traditional schottky diode power consumption;Through CLIMx external resistance, current limiting value can be flexibly set;With two-stage temperature protection (130 ℃ early warning / 160 ℃ shutdown) and fast reverse current blocking function, seamless switching of main backup power supply can be realized.The present application effectively solves the problems of high power consumption, serious heating, lack of programmable protection and reverse current risk of existing diode scheme, and is especially suitable for unmanned aerial vehicle, aerospace and industrial control in the key load power supply with strict requirements on volume, power consumption and reliability.

The utility model relates to a kind of PCB antenna structure compatible with multiple packaging types, including PCB board, at least two different packaging types of antenna elements being set on the PCB board, and with the chip being connected to the antenna element;The signal pin of the antenna element is connected to the same function pin of the chip in parallel, and the packaging layout of the two antenna elements on the PCB board is pin overlapping arrangement;Wherein, the pin pad of the antenna element adopts overlapping design in PCB layout, and pad size, spacing is consistent, so that only one antenna element is welded when actual patch.