IP Library › Granted Patent US 12,623,077
Granted Patent B2
US 12,623,077 · App. 17/634,735 · Granted May 12, 2026

Neuromodulator apparatuses comprising LED driver integrated circuits

Inventors: Wing Law (Cupertino, CA); Remi Demers (Saint-Nicolas, CA)
Assignee: THYNC GLOBAL, INC.
A61N1/36034A61N1/0456A61N1/0492
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Quick Facts
Patent No.
US 12,623,077
App. No.
17/634,735
Granted
May 12, 2026
Kind
B2
Abstract

Described herein are neuromodulator (e.g., neuromodulation apparatuses) that include an LED driver integrated circuit (IC) that is adapted to operate as a pulse generator for the neuromodulator.

Claims (37)

1 . A neuromodulator apparatus comprising:

an electrode pair;

a microcontroller storing one or more neural modulation waveform parameters;

an LED driver integrated circuit (IC) adapted to function as a pulse generator, wherein a first pin of the LED driver IC is in electrically communication with a first electrode of the electrode pair, and a feedback pin on the LED driver IC is coupled to the microcontroller to modulate an output of the LED driver IC on the first pin in accordance to the one or more neural modulation waveform parameters stored in the microcontroller; and

a voltage multiplier circuit in electrical communication with the first pin and the first electrode so that the voltage multiplier circuit multiplies a voltage output of the LED driver IC delivered before the first electrode;

wherein the output from the LED driver IC is modulated by the microcontroller and output by the first electrode.

2 . The apparatus of claim 1 , wherein the voltage multiplier circuit is configured to multiple a voltage from the LED driver IC to greater than 50 V.

3 . The apparatus of claim 1 , wherein the voltage multiplier circuit comprises a voltage doubler or a voltage tripler.

4 . The apparatus of claim 1 , wherein the LED driver IC comprises an oscillator having an operating frequency between 1 MHz to 2 MHz configured to drive a switch at the operating frequency, an error amplifier that reads a feedback voltage to control on time and off time of the switch, a current sense amplifier that reads a current passing through the switch to keep the current from going beyond a capability of the switch, and control logic.

5 . The apparatus of claim 4 , wherein the LED driver IC further comprises the switch.

6 . The apparatus of claim 1 , wherein the electrode pair comprises a pair of hydrogel skin contacts.

7 . The apparatus of claim 1 , further comprising an OR gate on the feedback pin of the LED driver IC, wherein the OR gate receives input from the microcontroller and from a sample input that is in electrical communication with the first electrode.

8 . The apparatus of claim 1 , further comprising skin discharge circuitry in electrical communication with the microcontroller, configured to discharge capacitive energy from skin during or after neuromodulation is applied to the skin.

9 . The apparatus of claim 1 , further comprising a skin detection circuit coupled to a pin on the LED driver IC, wherein the skin sensing circuit is configured to detect contact with skin based on an output voltage of the LED driver IC.

10 . The apparatus of claim 9 , wherein the skin detection circuit is configured to trigger a signal to the microcontroller to switch output pulses from the LED driver IC to a short duration, low-voltage pinging pulses when a voltage from the LED driver IC exceeds a threshold.

11 . The apparatus of claim 10 , wherein the skin detection circuit is further configured to detect contact with skin when a voltage of the low-voltage pinging pulses falls below a threshold voltage.

12 . The apparatus of claim 1 , further comprising a low pass filter in electrical communication with an OVP pin of the LED driver IC, wherein the apparatus is configured to shut down the LED driver IC when a DC is detected.

13 . The apparatus of claim 1 , further wherein the microcontroller is configured to store an inverse of a neural modulation wave sequence that is between 0 mV and 100 mV, for application to the feedback pin of the LED driver IC.

14 . The apparatus of claim 1 , further wherein the first electrode comprises a conductive adhesive film electrically coupling a first gel electrode pad to the first pin.

15 . The apparatus of claim 1 , wherein an output of the LED driver IC to the first pin is an AC output.

16 . The apparatus of claim 1 , wherein the LED driver IC further comprises an enable pin in electrical communication with the microcontroller, wherein the apparatus is configured to modulate the enable pin when a neuromodulation frequency is between about 0.1 HZ to 100 HZ.

17 . A neuromodulator apparatus comprising:

an electrode pair;

a microcontroller storing one or more neural modulation waveform parameters; and

an LED driver integrated circuit (IC) adapted to function as a pulse generator, wherein a first pin of the LED driver IC is in electrically communication with a first electrode of the electrode pair, and a feedback pin on the LED driver IC is coupled to the microcontroller to modulate an output of the LED driver IC on the first pin in accordance to the one or more neural modulation waveform parameters stored in the microcontroller;

wherein the output from the LED driver IC is an AC output and is modulated by the microcontroller and output by the first electrode.

18 . A neuromodulator apparatus comprising:

an electrode pair;

a microcontroller storing one or more neural modulation waveform parameters;

an LED driver integrated circuit (IC) adapted to function as a pulse generator, wherein a first pin of the LED driver IC is in electrically communication with a first electrode of the electrode pair, and a feedback pin on the LED driver IC is coupled to the microcontroller to modulate an output of the LED driver IC on the first pin in accordance to the one or more neural modulation waveform parameters stored in the microcontroller; and

skin discharge circuitry in electrical communication with the microcontroller, the skin discharge circuitry configured to discharge capacitive energy from skin during or after neuromodulation is applied to the skin;

wherein the output from the LED driver IC is modulated by the microcontroller and output by the first electrode.

19 . A neuromodulator apparatus comprising:

an electrode pair, wherein the electrode pair comprises a pair of hydrogel skin contacts;

a microcontroller storing one or more neural modulation waveform parameters; and

an LED driver integrated circuit (IC) adapted to function as a pulse generator, wherein a first pin of the LED driver IC is in electrically communication with a first electrode of the electrode pair, and a feedback pin on the LED driver IC is coupled to the microcontroller to modulate an output of the LED driver IC on the first pin in accordance to the one or more neural modulation waveform parameters stored in the microcontroller;

wherein the output from the LED driver IC is modulated by the microcontroller and output by the first electrode.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 22, 2024
From: LAW, WING; DEMERS, REMI
To: THYNC GLOBAL, INC.
Reel/Frame 068972/0452 →
Continuity (2)
Provisional Application 62908567 · Sep 30, 2019
Related Publication 20220273947A1 · Sep 1, 2022
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