Push-pull amplifying devices with class d transistorized amplifiers专利检索-D类放大器电子零件及设备专利检索查询-专利查询网

Push-pull amplifying devices with class d transistorized amplifiers

阅读：348发布：2022-09-05

专利汇可以提供Push-pull amplifying devices with class d transistorized amplifiers专利检索，专利查询，专利分析的服务。并且In a push-pull amplifying device comprising two transistorized class D amplifiers, the input signal of each of these amplifiers is formed by the superposition of two in-phase waves, one of which is a sine wave and the other a rectangular one, the sine wave signal providing most of the input current required to ensure saturation during the conductive periods and in particular in the centre part of these periods.，下面是Push-pull amplifying devices with class d transistorized amplifiers专利的具体信息内容。

权利要求

1. A push-pull amplifying device comprising first and second transistorized class D amplifiers having respective inputs; a common resonant load circuit for said amplifiers; and adding means for applying to each of said inputs of said amplifiers with opposite phases, a sum signal formed by the sinusoidal signal to be amplified and a rectangular signal having the same frequency and phase as this sinusoidal signal.

2. A push-pull amplifying device as claimed in claim 1 wherein said adding means comprise first and second resistor adding circuits, said first resistor adding circuit having first and second inputs for respectively receiving the rectangular signal and the sinusoidal signal forming the sum signal applied to said input of said first amplifier, and an output coupled to said input of said first amplifier, said second resistor adding circuit having first and second inputs for respectively receiving the rectangular signal and the sinusoidal signal forming the sum signal applied to said input of said second amplifier, and an output coupled to said input of said second amplifier.

3. A push-pull amplifying device, wherein said adding means further comprising: first and second transistorized class D amplifiers; a common resonant load circuit for said amplifiers; first and second resistor adding circuits, for applying to each of said amplifiers with opposite phases a sum signal formed by the sinusoidal signal to be amplified and a rectangular signal having the same frequency and phase as this sinusoidal signal, said adding circuits having respective outputs and respective first and second inputs; first and second transistors having outputs electrodes respectively coupled to said first and second inputs of said first resistor adding circuit fOr respectively preamplifying the rectangular and sinusoidal signals to be applied to said last mentioned inputs; third and fourth transistors having output electrodes respectively coupled to said first and second inputs of said second resistor adding circuit for respectively preamplifying the rectangular and sinusoidal signals to be applied to said last mentioned inputs; said first resistor adding circuit comprising a differentiating circuit connected between said first input and said output of said first resistor adding circuit and said second resistor adding circuit comprising a differentiating circuit connected between said first input and said output of said second resistor adding circuit.

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Push-pull amplifying devices with class d transistorized amplifiers

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