公开(公告)号：US10439539B2

公开(公告)日：2019-10-08

申请号：US15135330

申请日：2016-04-21

Applicant: ANALOG DEVICES GLOBAL UNLIMITED COMPANY

Inventor： Jesus Javier Lopez ,  Alberto Marinas ,  Eduardo M. Martinez ,  Santiago Iriarte

IPC: H02P25/034

Abstract: The present disclosure provides a feedback control system and method for a bidirectional VCM. The system employs an analog core that is common to both the PWM and linear modes of operation. The analog core includes a feedback mechanism that determines the error in the current flowing through the motor. The feedback mechanism produces an error voltage that corresponds to the current error, and applies the voltage to a control driver. The control driver then controls the motor, based on the error voltage, in either a PWM or linear mode. By sharing a common core, the switching time between modes is improved. Furthermore, the output current error between modes is reduced.

公开(公告)号：US09525407B2

公开(公告)日：2016-12-20

申请号：US14204851

申请日：2014-03-11

Applicant: Analog Devices Global

Inventor： Santiago Iriarte ,  John A. Cleary

IPC: H03K5/153 ,  H03K5/24

CPC classification number: H03K5/2472

Abstract: A power supply monitoring circuit for monitoring a voltage at a power supply node compared to a reference node, the power supply monitoring circuit comprising a first field effect transistor and first and second voltage dropping components arranged in current flow communication between the power supply node and the reference node and each having first and second nodes, and wherein a first node of the first voltage dropping component is connected to one of the first and second nodes of the field effect transistor, and a gate of the field effect transistor is connected to the second node of the first voltage dropping component, and an output signal is taken from a connection made with the first field effect transistor.

Abstract translation: 一种电源监视电路，用于监视与参考节点相比的电源节点处的电压，所述电源监视电路包括第一场效应晶体管和第一和第二降压组件，所述第一和第二降压组件以电流节点和 参考节点，并且每个具有第一和第二节点，并且其中第一降压部件的第一节点连接到场效应晶体管的第一和第二节点中的一个，并且场效应晶体管的栅极连接到第二节点 第一降压组件的节点，并且输出信号取自与第一场效应晶体管制成的连接。

公开(公告)号：US09632521B2

公开(公告)日：2017-04-25

申请号：US14205045

申请日：2014-03-11

Applicant: ANALOG DEVICES GLOBAL

Inventor： Santiago Iriarte ,  Ramon Tortosa Navas ,  Enrique Company Bosch

IPC: G05F1/10 ,  G05F3/24 ,  G05F1/46 ,  G05F1/56 ,  G05F1/567

CPC classification number: G05F3/242 ,  G05F1/46 ,  G05F1/461 ,  G05F1/462 ,  G05F1/56 ,  G05F1/567

Abstract: A voltage generator is provided which is reliable, self starting and only requires a few components. The voltage generator comprises a first stage that provides a current to a second stage. The first stage has a temperature coefficient of one sign, such as positive, and the second stage has an opposing temperature coefficient, e.g. negative. The responses are summed such that the overall temperature coefficient is reduced.