Balanced output circuit and electronic apparatus utilizing...

Details Balanced output circuit and electronic apparatus utilizing... Balanced output circuit and electronic apparatus utilizing...

2008-05-06

2008-05-06

Nguyen, Patricia (Department: 2817)

Amplifiers

With periodic switching input-output

C330S260000, C330S301000, C330S085000

Reexamination Certificate

active

07368982

ABSTRACT:
In a balanced output circuit, an input signal inputted thereto is provided as a first output signal thereof on one hand, and on the other hand the input signal is inputted to an inverting amplification circuit and is compared with a comparison voltage before the signal is outputted as a second output signal. Based on the comparison of the first and second output signals, the comparison voltage is controlled by a charging voltage of a capacitor such that the DC voltage of the second output signal is equalized to that of the first output signal. Thus, the DC offset voltage between the first output signal (non-inverted output signal) and the second output signal (inverted output signal) can be properly annihilated by a simple circuit.

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Official communication issued in the corresponding International Application No. PCT/JP2005/015822, mailed on Dec. 6, 2005.

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