3results about How to "Extensive selection" patented technology

The utility model relates to the technical field of power supply control, in particular to a pump power supply control circuit for high-side driving. The circuit comprises a pump power supply controller which is used for generating a driving control signal and adjusting the driving control signal according to an error signal; the driving module is used for receiving a driving control signal; the power conversion unit is configured to boost a direct current input voltage into a pump voltage under the control of the driving module according to the driving control signal; the feedback sampling circuit is used for sampling the pump voltage and generating an error signal; the isolation feedback device is used for transmitting the error signal to the pump power supply controller in a potential isolation mode; the pump power supply controller takes the cathode of the DC input power supply as the reference ground, and the pump voltage takes the anode of the DC input power supply as the reference standard. The scheme is suitable for high-side driving application, is a pump power supply control scheme which is novel in structure, stable in performance, flexible in control and controllable in cost, and has good popularization and application prospects.

The utility model relates to the field of electrical equipment, especially cold drink manufacturing machine on drive arrangement of joint, ice sand machine and ice cream machine. Including be located in the refrigeration bucket of cold drink machine body stirring cavity, be located in the drive motor of cold drink machine body, rotating shaft and joint, the rotating shaft rotatable is arranged in the refrigeration bucket, and the front end of rotating shaft is the output connecting end that protrudes from the refrigeration bucket front end, the front end of joint is first connecting end, rear end is second connecting end, the other end of rotating shaft is the mounting end that links with the first connecting end of joint, the second connecting end of joint links with the output shaft of drive motor. It is through optimizing drive motor and rotating shaft, so that the whole volume is small, the cost is low, is favorable to the improvement efficiency.

The utility model discloses a projection lamp structure lens module of combined pattern, including outer frame support still includes mirror seat, heat dissipation board, first imaging lens group, second imaging lens group, third imaging lens group, the heat dissipation board corresponds to install in one side of outer frame support, the mirror seat corresponds to install in the inside of outer frame support, the mirror seat includes three lens assembly space, the second imaging lens group corresponds to install in the lens assembly space of the mirror seat centrally arranged in, first imaging lens group with third imaging lens group respectively correspond to install in the lens assembly space of two sides adjacent with second imaging lens group, each lens assembly space is from outside to inside and is sequentially installed with LED PCB board, fifth lens, fourth lens and film piece, is spliced to become by three lens groups, and the projection pattern range is expanded.