# US 11,451,084 B2 · Electronic device for harvesting power from at least one power source and method for operating the same

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- Number: US 11,451,084 B2
- Document ID: US11451084B2
- Status: Granted
- Kind: B2
- Application number: 15/979,685
- Filed: 2018-05-15
- Published: 2018-11-22
- Granted: 2022-09-20
- Earliest claimed: 2017-05-17
- Assignees: Samsung Electronics Co., Ltd.
- Applicants: Samsung Electronics Co., Ltd.
- Inventors: Young-Jun Park; Jae-Hyun Park; Pradipta Patra
- Web page: https://patentgrep.com/patent/US11451084B2

## CPC

- H02J 7/35: with light sensitive cells
- G04C 10/02: the power supply being a radioactive {or photovoltaic} source
- H02J 7/14: for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
- H02J 50/001: {Energy harvesting or scavenging}
- H02N 1/04: Friction generators
- H02N 2/181: {Circuits; Control arrangements or methods}
- H02S 10/10: including a supplementary source of electric power, e.g. hybrid diesel-PV energy systems (combinations with gas-turbine plants F02C6/00)
- H02S 10/40: Mobile PV generator systems
- H02S 40/32: comprising DC/AC inverter means associated with the PV module itself, e.g. AC modules
- H02S 40/38: Energy storage means, e.g. batteries, structurally associated with PV modules
- H02S 50/00: Monitoring or testing of PV systems, e.g. load balancing or fault identification
- H10F 77/413: {directly associated or integrated with the devices, e.g. back reflectors (directly associated or integrated with photovoltaic cells H10F77/42)}
- H10F 77/45: Wavelength conversion means, e.g. by using luminescent material, fluorescent concentrators or up-conversion arrangements
- H10F 77/488: {Reflecting light-concentrating means, e.g. parabolic mirrors or concentrators using total internal reflection}
- G04G 19/00: Electric power supply circuits specially adapted for use in electronic time-pieces
- H02J 7/345: {using capacitors as storage or buffering devices}
- H10N 30/852: {Composite materials, e.g. having 1-3 or 2-2 type connectivity}
- H10N 30/857: Macromolecular compositions
- Y02E 10/52: PV systems with concentrators
- Y02E 70/30: Systems combining energy storage with energy generation of non-fossil origin
- H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- G04C: ELECTROMECHANICAL CLOCKS OR WATCHES
- H02N: ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02S: GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES (obtaining electrical energy from radioactive sources G21H1/12; light sensitive inorganic semiconductor devices H10F; light sensitive organic semiconductor devices H10K30/00; thermoelectric devices H10N10/00; pyroelectric devices H10N15/00)
- H10F: INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- G04G: ELECTRONIC TIME-PIECES
- H10N: ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

Disclosed are electronic devices including a polymer including a ferroelectric and quantum dots disposed in the ferroelectric, at least one solar cell configured to receive light through the polymer and to convert the light into electrical energy, and a battery configured to be charged with the electrical energy from the at least one solar cell.

## Claims

### Claim 1

An electronic device, comprising:
a plurality of energy converting modules, each of the energy converting modules configured to generate a respective pieces of electrical energy;
at least one sensor configured to sense respective magnitudes of the pieces of electrical energy generated by the each of the energy converting modules;
at least one converter configured to convert voltages of the pieces of electrical energy;
first switches, each of the first switches configured to selectively connect one of the energy converting modules to one of the at least one converter;
a summating circuit configured to summate the pieces of electrical energy output from the at least one converter;
a second switch configured to connect the summating circuit to a battery; and
at least one processor configured to:
receive the respective magnitudes of the pieces of electrical energy from the at least on sensor,
identify whether each of the respective magnitudes of the pieces of electrical energy meets a respective one of a plurality of thresholds, each of the plurality of thresholds corresponding to a respective type of a respective energy converting module, and
control an on/off operation of the each of the first switches based on a result of the identification, and
in response to the summated electric energy being larger than a preset value, turn off the second switch to prevent the summated electric energy from being applied to the battery.

### Claim 2 (depends on 1)

The electronic device of claim 1, further comprising a memory configured to store the plurality of the thresholds.

### Claim 3 (depends on 1)

The electronic device of claim 1, wherein the electronic device is a watch-type electronic device, wherein the watch-type electronic device comprises a strap, and the strap comprises a polymer.

### Claim 4 (depends on 3)

The electronic device of claim 3, wherein the watch-type electronic device comprises a crown, and a rotations of the crown delivers electrical energy to a second energy converting module, and the plurality of energy converting modules comprises the second energy converting module.

### Claim 5 (depends on 1)

The electronic device of claim 1, wherein the electronic device is a smartphone, wherein a polymer is disposed on a display of the smartphone.

### Claim 6 (depends on 5)

The electronic device of claim 5, wherein the solar cell is disposed on a first end of the polymer and on a second end of the polymer.

### Claim 7 (depends on 1)

The electronic device of claim 1, wherein the plurality of energy converting modules comprises a tribo-electric generator, a piezo effect generator, a photoelectric module, and a magnetic field converting module.

### Claim 8 (depends on 7)

The electronic device of claim 7, wherein the plurality of thresholds include a first threshold for the tribo-electric generator, a second threshold for the piezo effect generator, and the first threshold is different from the second threshold.

### Claim 9 (depends on 1)

The electronic device of claim 1, wherein the thermoelectric effect generator is based on a Seebeck effect.