公开(公告)号：US20140139029A1

公开(公告)日：2014-05-22

申请号：US13683937

申请日：2012-11-21

Applicant: STMICROELECTRONICS S.R.I.

Inventor： Alessandro Gasparini ,  Andrea Donadel ,  Stefano Ramorini

IPC: H02J1/00

CPC classification number: G06F1/26 ,  Y10T307/696

Abstract: A dual input single output (DISO) regulator, includes a comparator configured to receive a first and second power supply signal and to provide a first compared signal; a first switch configured to couple the first power supply source to an intermediate node, and a second switch configured to couple the second power supply source to the intermediate node; a control logic circuit, coupled to the first comparator, to the first switch, and to the second switch, and configured to receive the compared signal to control the first and the second switch in a first and second operating condition based on the compared signal. The intermediate node being biased by an intermediate power supply signal correlated to the first or second power supply signal. The DISO regulator includes a low-dropout regulator, configured to provide a regulated power supply signal based on the intermediate power supply signal.

Abstract translation: 双输入单输出（DISO）调节器包括比较器，被配置为接收第一和第二电源信号并提供第一比较信号; 配置为将第一电源耦合到中间节点的第一开关和被配置为将第二电源耦合到中间节点的第二开关; 耦合到第一比较器的控制逻辑电路连接到第一开关和第二开关，并且被配置为接收比较的信号，以基于所比较的信号在第一和第二操作条件下控制第一和第二开关。 中间节点被与第一或第二电源信号相关的中间电源信号偏置。 DISO调节器包括一个低压差稳压器，配置成基于中间电源信号提供稳压电源信号。

公开(公告)号：US20140144230A1

公开(公告)日：2014-05-29

申请号：US13685364

申请日：2012-11-26

Applicant: STMICROELECTRONICS S.R.I.

Inventor： Davide Magnoni ,  Marco Garbarino ,  Andrea Donadel

IPC: G01C19/5712

CPC classification number: G01C19/5726 ,  G01C19/56

Abstract: A driving device of a driving mass of a gyroscope comprises a differential read amplifier to supply first signals indicating a rate of oscillation of the driving mass; a variable-gain amplifier to supply second signals to drive the driving mass based on said first signals; a voltage elevator providing a power supply signal to the variable-gain amplifier; a controller generating a first control signal to control a gain of the variable-gain amplifier; and a first comparator, coupled to the variable-gain amplifier, generating a second control signal based on a comparison of the first control signal with a threshold, the second control signal controlling at least one among: (i) the variable-gain amplifier in such a way that the gain is increased only during the start-up phase of the gyroscope, and (ii) the voltage elevator in such a way that the power supply signal is increased only during the start-up phase.

Abstract translation: 陀螺仪的驱动质量的驱动装置包括差分读取放大器，用于提供表示驱动质量的振荡速率的第一信号; 可变增益放大器，用于根据所述第一信号提供第二信号以驱动所述驱动质量; 向可变增益放大器提供电源信号的电压升降器; 产生控制可变增益放大器的增益的第一控制信号的控制器; 以及耦合到所述可变增益放大器的第一比较器，基于所述第一控制信号与阈值的比较产生第二控制信号，所述第二控制信号控制以下中的至少一个：（i）所述可变增益放大器 这样一种方式使增益仅在陀螺仪的启动阶段增加，和（ii）电压升降机使得电源信号仅在起动阶段增加。