Invention Grant
- Patent Title: Apparatus and method in apparatus
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Application No.: US14902199Application Date: 2013-07-04
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Publication No.: US09762190B2Publication Date: 2017-09-12
- Inventor: Lei Li
- Applicant: Nokia Technologies Oy
- Applicant Address: FI Espoo
- Assignee: Nokia Technologies Oy
- Current Assignee: Nokia Technologies Oy
- Current Assignee Address: FI Espoo
- Agency: Mintz Levin Cohn Ferris Glovsky and Popeo, P.C.
- International Application: PCT/CN2013/078791 WO 20130704
- International Announcement: WO2015/000156 WO 20150108
- Main IPC: H03F3/26
- IPC: H03F3/26 ; H03F3/30

Abstract:
There are disclosed various methods and apparatuses. In some embodiments of the method an input signal is provided to an input of a first transistor of a push-pull circuit via a first slew-rate adjuster; and the input signal is also provided to an input of a second transistor of the push-pull circuit via a second slew-rate adjuster. The input signal is effected by the first slew-rate adjuster and the second slew-rate adjuster to switch the first transistor on after the second transistor switches off when the amplitude of the input signal increases. The input signal is effected by the first slew-rate adjuster and the second slew-rate adjuster the input signal to switch the second transistor on after the first transistor switches off when the amplitude of the input signal decreases. In some embodiments the apparatus comprises a push-pull circuit comprising a first transistor and a second transistor; an input to receive an input signal; a first slew-rate adjuster adapted to provide the input signal to the input of the first transistor; and a second slew-rate adjuster adapted to provide the input signal to the input of the second transistor. A time constant of the first slew-rate adjuster is dependent on the direction of change of the input signal, and a time constant of the second slew-rate adjuster is dependent on the direction of change of the input signal.
Public/Granted literature
- US20160204752A1 Apparatus and Method in Apparatus Public/Granted day:2016-07-14
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