公开(公告)号：US20210345464A1

公开(公告)日：2021-11-04

申请号：US17245146

申请日：2021-04-30

Applicant: Texas Instruments Incorporated

Inventor： Miroslav OLJACA ,  Gustavo Alonso MARTINEZ ,  Yogesh RAMADASS

IPC: H05B45/3725 ,  H05B45/10 ,  H05B47/19

Abstract: A circuit includes a capacitor-drop power supply including a series combination of a resistor and a first capacitor. The capacitor-drop power supply includes an output and is adapted to be coupled to a light source. The circuit also includes a second capacitor, a switch, and an active clamp circuit. The second capacitor couples to the output of the capacitor-drop power supply. The switch couples in parallel with the series combination of the resistor and the first capacitor. The switch is configured to cause the light source to illuminate. The active clamp circuit couples to the capacitor-drop power supply. The active clamp circuit has an output coupled to the capacitor-drop power supply. The active clamp circuit is configured to cause current to continuously flow through at least one of the switch or the series combination of resistor and first capacitor regardless of a magnitude of the voltage across the second capacitor.

公开(公告)号：US20210119629A1

公开(公告)日：2021-04-22

申请号：US17072289

申请日：2020-10-16

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Navaneeth Kumar NARAYANASAMY ,  Manu BALAKRISHNAN ,  Miroslav OLJACA

IPC: H03K17/687 ,  H03K17/693 ,  H03K17/76 ,  H03K17/0812

Abstract: A solid-state relay circuit includes an isolator circuit, a first output terminal, a second output terminal, and an output switch. The output switch is coupled to the isolator circuit, and includes a first transistor, a second transistor, and a diode. The first transistor is coupled to the first output terminal. The second transistor is coupled to the first transistor and the second output terminal. The diode is coupled to the first transistor, the second transistor, and ground, and is configured to block current flow from ground to the first transistor and the second transistor. The isolator circuit is coupled to the output switch and is configured to activate the first transistor and the second transistor.

公开(公告)号：US20220149838A1

公开(公告)日：2022-05-12

申请号：US17586552

申请日：2022-01-27

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Navaneeth Kumar NARAYANASAMY ,  Manu BALAKRISHNAN ,  Miroslav OLJACA

IPC: H03K17/687 ,  H03K17/0812 ,  H03K17/76 ,  H03K17/693

Abstract: A solid-state relay circuit includes an isolator circuit, a first output terminal, a second output terminal, and an output switch. The output switch is coupled to the isolator circuit, and includes a first transistor, a second transistor, and a diode. The first transistor is coupled to the first output terminal. The second transistor is coupled to the first transistor and the second output terminal. The diode is coupled to the first transistor, the second transistor, and ground, and is configured to block current flow from ground to the first transistor and the second transistor. The isolator circuit is coupled to the output switch and is configured to activate the first transistor and the second transistor.

公开(公告)号：US20190181769A1

公开(公告)日：2019-06-13

申请号：US15836709

申请日：2017-12-08

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Miroslav OLJACA ,  Ajinder SINGH ,  Sharad YADAV

IPC: H02M5/10 ,  H01F27/29 ,  G01K7/34 ,  G01K7/01

CPC classification number: H02M5/10 ,  G01K7/01 ,  G01K7/34 ,  H01F27/29 ,  H02M3/33576 ,  H02M2001/0064

Abstract: In some examples, a system comprises a control subsystem comprising a static power supply, a modulated power supply, and a comparator. The system also includes a galvanic isolation device coupled to the static power supply, the modulated power supply, and the comparator. The system further includes a parameter measurement subsystem comprising a parameter measurement device coupled to a capacitor to be charged by the static and modulated power supplies via the galvanic isolation device. The capacitor has an electrical connection to the galvanic isolation device modulated in accordance with a current pulse train output by the parameter measurement device, the current pulse train indicating a parameter measured by the parameter measurement device. The comparator is to produce a signal indicative of the modulated electrical connection between the capacitor and the galvanic isolation device.