Low-noise high efficiency bias generation circuits and method

Patent metadata

Field	Value
Publication number	US-9778669-B2
Application number	US-201615059206-A
Country	US
Kind code	B2
Filing date	Mar 2, 2016
Priority date	Jul 18, 2008
Publication date	Oct 3, 2017
Grant date	Oct 3, 2017

Abstract

Embodiments of signal bias generators and regulators are described generally herein. Other embodiments may be described and claimed.

First claim

What is claimed is:

1. An apparatus for generating a substantially steady state positive voltage signal (PVS) and a substantially steady state negative voltage signal (NVS) to a switching module (SM), the PVS and the NVS remaining substantially stable during a switching event of the SM, including:
a bias signal generation module (BSGM) for generating a substantially steady state reference voltage signal (RVS), the RVS having a voltage level nominally less than the PVS;
a positive signal generation module (PSGM) generating the PVS, the PSGM including a first capacitor, the PSGM employing the first capacitor to nominally generate a portion of the PVS based on the RVS; and
a negative signal generation module (NSGM) generating the NVS, the NSGM including a second capacitor, the NSGM employing the second capacitor to nominally generate a portion of the NVS based on the RVS.

2. The apparatus of claim 1 , wherein the SM modulates a radio frequency (RF) signal.

3. The apparatus of claim 1 , the PSGM generating a positive capacitor control signal (PCCS) based at least partially on the RVS and employing the first capacitor to nominally generate a portion of the PVS at least partially based on the PCCS.

4. The apparatus of claim 1 , the NSGM generating a negative capacitor control signal (NCCS) based at least partially on the RVS and employing the second capacitor to nominally generate a portion of the NVS at least partially based on the NCCS.

5. The apparatus of claim 1 , the BSGM employing a first FET element and a second FET element formed on a common silicon on insulator (SOI) wafer in part to generate the RVS where the RVS is temperature independent.

6. The apparatus of claim 3 , wherein the ratio of the PVS voltage magnitude to the RVS voltage magnitude is about 1.5 to 4.

7. A method of generating a substantially steady state positive voltage signal (PVS) and a substantially steady state negative voltage signal (NVS) to a switching module (SM), the PVS and the NVS remaining substantially stable during a switching event of the SM, including:
generating a substantially steady state reference voltage signal (RVS), the RVS having a voltage level nominally less than the PVS;
employing a first capacitor to nominally generate a portion of the PVS based on the RVS; and
employing a second capacitor to nominally generate a portion of the NVS based on the RVS.

8. The method of claim 7 , wherein the SM modulates a radio frequency (RF) signal.

9. The method of claim 7 , further including generating a positive capacitor control signal (PCCS) based at least partially on the RVS and employing the first capacitor to nominally generate a portion of the PVS at least partially based on the PCCS.

10. The method of claim 9 , further including generating a negative capacitor control signal (NCCS) based at least partially on the RVS and employing the second capacitor to nominally generate a portion of the NVS at least partially based on the NCCS.

11. The method of claim 9 , wherein the ratio of the PVS voltage magnitude to the RVS voltage magnitude is about 1.5 to 4.

12. The method of claim 11 , wherein the ratio of the NVS voltage magnitude to the RVS voltage magnitude is about 1.5 to 4.

Assignees

• Peregrine Semiconductor Corp

Inventors

• Kim Tae Youn
• Englekirk Robert Mark

Classifications

• H03F1/303

  using a switching device (H03F1/305, H03F3/005, H03F3/38 take precedence) · CPC title

• G05F1/56 Primary

  using semiconductor devices in series with the load as final control devices (G05F1/461 takes precedence) · CPC title

• G05F1/468

  characterised by reference voltage circuitry, e.g. soft start, remote shutdown · CPC title