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Ring voltage generation circuit and method for generating a ring voltage

A technology of ringing voltage and circuit generation, which is applied in the direction of telephone communication, electrical components, current supply devices, etc., to achieve the effect of minimizing power loss

Inactive Publication Date: 2009-09-09
LANTIQ DEUT GBMH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is a 180° phase delay between the TIP potential VT and the RING potential VR

Method used

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  • Ring voltage generation circuit and method for generating a ring voltage
  • Ring voltage generation circuit and method for generating a ring voltage
  • Ring voltage generation circuit and method for generating a ring voltage

Examples

Experimental program
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Embodiment Construction

[0063] figure 2A preferred embodiment of the ringing voltage generating circuit 1 according to the invention is shown. A ringing voltage generating circuit 1 for generating a ringing voltage VTR for an electronic subscriber circuit between the TIP lead 9 and the RING lead 10 with minimum power loss comprises: a first input 1-1, a second input 1 -2. The first output terminal 1-3 and the second output terminal 1-4. The input voltage VI is applied between the first input terminal 1-1 and the second input terminal 1-2. The ringing voltage VTR is applied between the first output terminal 1-3 and the second output terminal 1-4, while the first output terminal 1-3 is connected to the TIP lead 9, and the second output terminal 1-4 is connected to the RING Lead 10.

[0064] The ringing voltage generation circuit 1 includes an amplifier circuit 2 that receives an input voltage VI to amplify the input voltage VI to provide a ringing voltage VTR. Therefore, the amplifier circuit 2 in...

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PUM

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Abstract

A ringing voltage generating circuit for generating ringing voltages, comprising: a) an amplifier circuit that receives an input voltage so as to amplify the input voltage to provide the ringing voltage; b) an absolute value generator that receives the input voltage and measures the absolute value of the input voltage value, and outputting the absolute value of the measured input voltage; c) a DC / DC converter receiving the absolute value of the measured input voltage and converting the absolute value of the measured input voltage into a supply voltage for the amplifier circuit; and d ) a common mode feedback device that receives the supply voltage, the TIP potential of the TIP lead and the RING potential of the RING lead and generates a control voltage therefrom, and the common mode feedback device controls the amplifier circuit by means of the control voltage.

Description

technical field [0001] The present invention relates to a ringing voltage generating circuit and method for generating a ringing voltage for an electronic subscriber circuit between a TIP lead and a RING lead with minimum power loss. Background technique [0002] Within the technical field of the invention, a sinusoidal alternating voltage with a frequency of 20 to 50 Hz and a relatively high amplitude of up to 250 V (peak-to-peak) is used as the ringing signal. [0003] Generally, there are two different solutions known in the prior art to generate such ringing signals. In a first solution, the central generator is connected by means of a repeater to one lead, normally a RING line. Connect the other lead, which is normally TIP, to ground. Because of the high voltage of 250V, the electronic Subscriber Line Interface Circuit (SLIC) must be disconnected from the line. This solution is called the unbalanced solution because only one lead is used. [0004] In a second soluti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04M19/04H04M19/02H03F3/45
Inventor 玛丽亚·焦万纳·拉焦亚约阿希姆·皮希勒伯恩哈德·佐杰尔
Owner LANTIQ DEUT GBMH