33results about How to "Fulfill application requirements" patented technology

The present invention provides a drive interface system for a single-coil relay that supports both main and standby drives, so that two mutually redundant safety drive units can drive the single-coil relay through the drive interface system, including a drive interface module; a drive interface module The input end of the main safety drive unit and the output end of the backup safety drive unit are connected to the output end of the drive interface module, and the output end of the drive interface module is connected to the single-coil relay. The main safety drive unit and the backup safety drive unit are redundant with each other; the drive interface module includes mandatory guidance Relay, one group of outputs of the main safety drive unit is connected to the coil of the forced guide relay, the other group of outputs is connected to the normally open contact of the forced guide relay, and the output of the backup safety drive unit is connected to the normally closed contact of the forced guide relay; in the forced guide The output terminal of the relay connects the normally open contact and the normally closed contact in parallel to the single coil relay. This system makes the self-checks of the main and backup safety drive units not affect each other.

A kind of high-speed multiplexer synchronous serial interface design method used for ping-pong anti-collision of the present invention comprises the following steps: determine the number of bytes sent by the high-speed multiplexer synchronous serial communication interface; the high-speed multiplexer synchronous serial communication interface receives Adjust the phase relationship between the input gate and the symbol clock for the external input gate signal, and correct the adjusted gate; perform anti-collision processing according to the relative delay of the corrected gate and external processor access, and adjust Data transmission timing; the processor reads the status register of the high-speed multiplexer, and performs conflict control on the ping-pong bus access to realize the control switching of the ping-pong buffer; under the control of the processor and when the corrected wave gate is valid, buffer the ping-pong data The data in the area is converted into serial data and output to the data line of the high-speed multiplexer. The invention improves the reliability and stability of the synchronous serial interface communication of the high-speed multiplexer through the above conflict processing method.

The invention belongs to the technical field of heat-conducting materials under the ultra-high heat-conducting filling technology system, and specifically relates to a high-filling and ultra-high heat-conducting epoxy resin material and a preparation method thereof. The material is made of A component and B component, A component is a mixture of epoxy resin base material and modified thermal conductive powder; B component is a mixture of mixing aid and modified thermal conductive powder; A component The mass percentage ratio of the epoxy resin base material to the modified thermal conductive powder is 100: (65‑95); the mass percentage ratio of the mixing aid to the modified thermal conductive powder in component B is 100: (65‑95) ; The mass percentage ratio of the A component to the B component is (0.8-1.2): 1; the modified heat-conducting powder is a composite heat-conducting powder modified by a modifier. The invention effectively improves the compatibility between the powder and the epoxy resin substrate by modifying the composite heat-conducting powder with different particle sizes, so that the thermal conductivity is ≥ 2.5W·m ‑1 ·K ‑1 , volume resistivity ≥ 2.2×10 15 Ω·cm, breakdown strength ≥24V / mm.