Full-voltage TV signal amplifier

Abstract

A full-voltage television signal amplifier includes: a full-voltage power supply unit, a signal input terminal, a signal input attenuation test terminal, a signal input selection switch connected to the signal input terminal and the signal input attenuation test terminal respectively, a signal slope adjustment unit and a signal gain adjustment unit connected in series, a signal amplification module connected to the full-voltage power supply unit and the signal gain adjustment unit respectively, a signal output selection switch connected to the signal amplification module, and a signal output terminal and a signal output attenuation test terminal connected to a pair of output terminals of the signal output selection switch respectively; wherein the full-voltage power supply unit can receive an input of 90V to 260V 50~60Hz AC power and provide a DC output to the signal amplification module accordingly, thus achieving the purpose of this invention.

Claims

1. A full-voltage television signal amplifier, comprising: One signal input terminal receives an external input signal; A full-voltage power supply unit receives an external AC power input and converts the AC power input into a DC output; a signal amplification module is connected to the full-voltage power supply unit to receive the DC output, and the signal amplification module is electrically connected to the signal input terminal to receive an adjusted input signal, and amplifies the adjusted input signal according to the signal amplification module's own settings to output an amplified output signal; a signal output terminal is electrically connected to the signal amplification module to receive and output the amplified output signal; wherein the AC power supply is an AC power supply of 90V to 260V.

2. The full-voltage television signal amplifier as claimed in claim 1, wherein the full-voltage power supply unit is an integral part of providing the DC power output to the full-voltage television signal amplifier.

3. The full-voltage television signal amplifier as described in claim 1 further comprises: a signal gain adjustment unit, located between the signal amplification module and the signal input terminal and electrically connected to the signal amplification module and the signal input terminal respectively, to receive the input signal and adjust the input signal between a maximum gain value and a minimum gain value according to its own settings, so as to output the adjusted input signal.

4. The full-voltage television signal amplifier as described in claim 3 further comprises: a signal slope adjustment unit connected in series with the signal gain adjustment unit and located between the signal amplification module and the signal input terminal, wherein the signal slope adjustment unit can further adjust the signal slope of the input signal or the adjusted input signal according to its own settings.

5. The full-voltage television signal amplifier as described in claim 1 further includes: a signal input attenuation test terminal, which can receive and attenuate the external input signal to output an input test signal.

6. The full-voltage television signal amplifier as described in claim 5 further comprises: a signal input selection switch, respectively connected to the signal input terminal and the signal input attenuation test terminal to receive the input signal and the input test signal respectively, so as to select one of the input signal and the input test signal for output.

7. The full-voltage television signal amplifier as described in claim 1 further includes: a signal output attenuation test terminal, which can receive and attenuate the output amplified signal to output an output test signal.

8. The full-voltage television signal amplifier as described in claim 7 further comprises: a signal output selection switch, respectively connected to the signal amplification module, the signal output terminal, and the signal output attenuation test terminal, to receive the output amplified signal and select whether to output the output amplified signal via the signal output terminal or to output the output test signal via the signal output attenuation test terminal.

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