About 31 results
https://drivepatents.com/patents/958494 · 5 Aug 2015
There is provided a motor control system for an electric bicycle including: a gradient detection unit detecting left and light gradients of the bicycle; and a motor driving control unit controlling a driving of a driving motor, wherein the motor driving co...
https://drivepatents.com/patents/963481 · 28 Jan 2015
Disclosed herein is a motor control system of an electric bike, including: a driving speed detection unit (D) detecting a driving speed; a wheel speed detection unit (170) detecting a rotational speed of a wheel; and a motor driving control unit (120) cont...
https://drivepatents.com/patents/963776 · 21 Jan 2015
Disclosed herein is a motor control system for an electric bicycle, the system including: a gradient sensing unit sensing a gradient of a bicycle; a bicycle acceleration sensing unit sensing an acceleration of the bicycle; a pedal acceleration sensing unit...
https://drivepatents.com/patents/969043 · 8 Oct 2014
Disclosed herein is an electronic shelf label (ESL) tag including a power adjusting unit (130) connected to the battery (110) to receive power, wherein the power adjusting unit boosts power and provides the boosted power to an IC (120) when the IC is in an...
https://drivepatents.com/patents/969372 · 1 Oct 2014
A power charging apparatus and a battery apparatus quickly charge a battery with power by separately charging each battery cell with power. The power charging apparatus includes: a power supplier supplying power; and a charging part having at least two cha...
https://drivepatents.com/patents/970577 · 3 Sep 2014
There are provided an electronic shelf label and a method of controlling the same. The electronic shelf label according to an embodiment of the present invention includes: a power supply unit supplying driving power; an interrupt signal generation unit gen...
https://drivepatents.com/patents/972955 · 2 Jul 2014
There are provided a coil for cordless charging, which may be formed as a thin coil in spite of the presence of a plurality of coils included therein, and a cordless charging apparatus using the same. The cordless charging apparatus includes: a coil unit i...
https://drivepatents.com/patents/972957 · 2 Jul 2014
There is provided an electronic shelf labeling (ESL) system including a plurality of ESL tags displaying merchandise item information; and a gateway providing the plurality of ESL tags with update data for the merchandise item information and transmitting ...
https://drivepatents.com/patents/980199 · 1 Jan 2014
There is provided a tire location discrimination device, including: a plurality of pressure gauges each measuring internal pressure of a plurality of tires; and an operation unit receiving and processing pressure signals each generated from the plurality o...
Multi-level converter, and inverter having the same and solar power supply apparatus having the same
https://drivepatents.com/patents/980197 · 1 Jan 2014
There are provided a multi-level converter capable of outputting power having various voltage levels with respect to a single input power supply by using a simple circuit, an inverter having the same, and a solar power supply apparatus having the same. The...