최소 단어 이상 선택하여야 합니다.
최대 10 단어까지만 선택 가능합니다.
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
DataON 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Edison 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0604452 (2015-01-23) |
등록번호 | US-9768373 (2017-09-19) |
발명자 / 주소 |
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출원인 / 주소 |
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인용정보 | 피인용 횟수 : 0 인용 특허 : 858 |
A switched resonant power amplifier system for ultrasonic transducers is disclosed. The system includes an amplifier that receives and processes a driver output signal for generating a drive signal that is provided to an ultrasonic device for controlling output of the ultrasonic device. An output co
A switched resonant power amplifier system for ultrasonic transducers is disclosed. The system includes an amplifier that receives and processes a driver output signal for generating a drive signal that is provided to an ultrasonic device for controlling output of the ultrasonic device. An output control circuit receives and processes a signal related to a feedback signal generated by the ultrasonic device and a divider reference signal, and generates a compensated clock signal that is adjusted for at least one of phase and frequency differences between the received feedback signal and the divider reference signal. A compensated drive circuit receives and processes the compensated clock signal for generating the divider reference signal, and for generating the driver output signal.
1. A method for controlling an output of an ultrasonic device, the method comprising: processing first and second input signals at a phase locked loop to generate a compensated clock signal adjusted for at least one of phase or frequency difference between the first and second input signals;generati
1. A method for controlling an output of an ultrasonic device, the method comprising: processing first and second input signals at a phase locked loop to generate a compensated clock signal adjusted for at least one of phase or frequency difference between the first and second input signals;generating a counter output signal based on the compensated clock signal;splitting the counter output signal into first and second complementary square waves;measuring at least one of the first and second complementary square waves to obtain the second input signal; andamplifying the first and second complementary square waves to generate a driver output signal to control an ultrasonic transducer. 2. The method according to claim 1, further comprising: receiving and processing a feedback signal related to the output of the ultrasonic transducer to generate a corresponding square wave signal; andcomparing the corresponding square wave signal to a reference signal and generating a reset signal having substantially the same frequency to the feedback signal. 3. The method according to claim 2, wherein the feedback signal is indicative of the output of the ultrasonic transducer. 4. The method according to claim 2, further comprising: receiving and processing the reset signal to generate a compensated reference signal having a frequency that is substantially 180° out-of-phase with respect to the reset signal. 5. The method according to claim 4, wherein the first input signal is the compensated reference signal and the second input signal is a divider reference signal. 6. The method according to claim 1, wherein generating the counter output signal further includes stepping down frequency of the compensated clock signal to generate the counter output signal. 7. The method according to claim 1, further comprising: selectively adjusting at least one of a phase relationship between the first and second complementary signals or pulse width of pulses of the first and second complementary signals. 8. A method for controlling an output of an ultrasonic device, the method comprising: supplying a driver output signal to an ultrasonic transducer;processing first and second input signals at a phase locked loop to generate a compensated clock signal adjusted for at least one of phase or frequency difference between the first and second input signals;generating a counter output signal based on the compensated clock signal;splitting the counter output signal into first and second complementary square waves;measuring at least one of the first and second complementary square waves to obtain the second input signal; andamplifying the first and second complementary square waves to generate the driver output signal. 9. The method according to claim 8, further comprising: receiving and processing a feedback signal related to the output of the ultrasonic transducer to generate a corresponding square wave signal; andcomparing the corresponding square wave signal to a reference signal and generating a reset signal having substantially the same frequency to the feedback signal. 10. The method according to claim 9, further comprising: receiving and processing the reset signal to generate a compensated reference signal having a frequency that is substantially 180° out-of-phase with respect to the reset signal. 11. The method according to claim 10, wherein the first input signal is the compensated reference signal and the second input signal is a divider reference signal. 12. The method according to claim 9, wherein the feedback signal is indicative of the output of the ultrasonic transducer. 13. The method according to claim 8, wherein generating the counter output signal further includes stepping down frequency of the compensated clock signal to generate the counter output signal. 14. The method according to claim 8, further comprising: selectively adjusting at least one of a phase relationship between the first and second complementary signals or pulse width of pulses of the first and second complementary signals.
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