发明名称 |
Apparatus and method for muting an output signal in a switching amplifier |
摘要 |
In an audio switching power amplifier, muting apparatus provided for eliminating noise signals associated with turn-on and turn-off operations of the apparatus is disclosed. The muting apparatus disables the output power amplifiers and controls signal levels at various positions in the power amplifier to reduce transient conditions. Control apparatus applies the muting signals to the power amplifier during a predetermined period during start-up of the amplifier and applies the muting conditions immediately upon the turning off of power to the power amplifier.
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申请公布号 |
US4673889(A) |
申请公布日期 |
1987.06.16 |
申请号 |
US19850809506 |
申请日期 |
1985.12.16 |
申请人 |
SGS MICROELETTRONICA S.P.A. |
发明人 |
CINI, CARLO;DIAZZI, CLAUDIO;ERRATICO, PIETRO |
分类号 |
H03F3/217;H03F1/00;H03F1/30;H03F3/20;H03F3/30;(IPC1-7):H03F3/38 |
主分类号 |
H03F3/217 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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