Ultrasonic transmitter

• Main Authors: FREER STEVEN, CARPENTER THOMAS MICHAEL, DAVID MATTHEW JOSEPH COWELL
• Format: Patent
• Language: Chinese; English
• Published: 08.08.2023
• Subjects: AMPLIFIERS; BASIC ELECTRONIC CIRCUITRY; ELECTRICITY

An example provides a multi-stage switch mode ultrasound transmitter comprising a first push-pull transistor arrangement comprising first and second drive transistors, third and fourth additional switch transistors, a bi-directional load switch each arranged as one of the first and second drive transistors, the first drive transistor and the associated third additional switching transistor operate in series as a first arm of the first push-pull transistor arrangement, and the second drive transistor and the associated fourth additional switching transistor operate in series as a second arm of the first push-pull transistor arrangement, each arm is coupled between a respective polarity instance of the first bipolar drive voltage supply and a common output. 示例提供了一种多级开关模式超声发射机，包括第一推挽晶体管装置，第一推挽晶体管装置包括第一和第二驱动晶体管、第三和第四附加开关晶体管，每个被布置为第一和第二驱动晶体管中的一个的双向负载开关，其中，第一驱动晶体管和相关联的第三附加开关晶体管串联作为第一推挽晶体管装置的第一臂操作，并且第二驱动晶体管和相关联的第四附加开关晶体管串联作为第一推挽晶体管装置的第二臂操作，其中，每个臂联接在第一双极驱动电压电源的相应极性实例和公共输出之间。