Invention Application
- Patent Title: CIRCUIT BIAS VIA TRANSFORMER
- Patent Title (中): 电路通过变压器
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Application No.: PCT/IB9600417Application Date: 1996-05-07
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Publication No.: WO9638908A3Publication Date: 1997-01-16
- Inventor: VAN DE WESTERLO MARCEL HENRICU
- Applicant: PHILIPS ELECTRONICS NV , PHILIPS NORDEN AB
- Assignee: PHILIPS ELECTRONICS NV,PHILIPS NORDEN AB
- Current Assignee: PHILIPS ELECTRONICS NV,PHILIPS NORDEN AB
- Priority: EP95201429 1995-05-31
- Main IPC: H01F19/06
- IPC: H01F19/06 ; H03H11/02 ; H03H11/32
Abstract:
In an amplifier module circuit, an input transformer (TI) transforms an input signal (ISU) into a transformed input signal (ISB), which is supplied to a pair of amplifiers (AMPA, AMPB). In addition to windings (W1, W2) for input signal transformation, the core (CO) of the transformer (TI) is provided with an auxiliary winding (W3) for biaising the pair of amplifiers (AMPA, AMPB). A DC bias voltage (VB) is supplied to a tap (XT) on the auxiliary winding (W3) whose ends are DC coupled to the input transistors (QA, QB) of the pair of amplifiers (AMPA, AMPB).
Information query
