Moonsang
Moonsang Jung, Seoul KR
Patent application number | Description | Published |
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20130033197 | ISOLATED FLYBACK CONVERTER FOR LIGHT EMITTING DIODE DRIVER - An isolated flyback converter for an LED driver includes a snubber circuit unit connected to the primary side of a transformer; and a snubber voltage detection unit which detects a snubber voltage of the snubber circuit unit and generates a reference voltage proportional to the detected snubber voltage. Further, the isolated flyback converter includes a switching unit with a source terminal and a drain terminal, and may be turned on or off in response to an arbitrary logic signal. Furthermore, the isolated flyback converter includes a control unit which compares a voltage supplied through the switching current sensing resistor with the reference voltage, and supplies a logic signal at relatively high level or relatively low level to the switching unit to control the switching unit such that a secondary-side current of the transformer is maintained relatively constant. | 02-07-2013 |
20130063039 | ISOLATED FLYBACK CONVERTER FOR LIGHT EMITTING DIODE DRIVER - An isolated flyback converter for an LED driver may include: (1) A snubber circuit configured to be connected to the primary side of a transformer. (2) A switching unit configured to have a source terminal and a drain terminal and configured to be turned on or off. (3) A control unit configured to detect a first input signal proportional to a fluctuation in the power supply voltage, detect a second input signal when the switching unit is turned off, generate a signal inversely proportional to the maximum value of the first input signal and multiply the generated signal to the second input signal, and control a peak current of the switching unit to be proportional to the multiplication result of the signal inversely proportional to the maximum value of the first input signal and the second input signal such that a secondary-side current of the transformer is maintained constant. | 03-14-2013 |
Moonsang Kwon, Seoul KR
Patent application number | Description | Published |
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20130046920 | NONVOLATILE MEMORY SYSTEM WITH MIGRATION MANAGER - Disclosed is a memory system that includes a nonvolatile memory having a main region and a cache region; and a memory controller having migration manager managing a migration operation that moves data from cache region to the main region by referencing a Most Recently Used/Least Recently Used (MRU/LRU) list. | 02-21-2013 |
Moonsang Lim, Chungju-Si KR
Patent application number | Description | Published |
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20130040535 | HIP-UP UNDERWEAR USING AN ELASTIC BAND - The present invention relates to hip-up underwear which prevents the hip of a wearer from dropping downward during daily life and corrects the body shape of the wearer. More particularly, the present invention relates to hip-up underwear using an elastic band, in which the elastic band is arranged at the rear surface of the underwear so as to cover the entirety of the waist and hip of the wearer, and the elastic band is fastened on the abdominal area of the wearer after the wearer puts on the underwear so as to prevent the hip of the wearer from being squashed flat and from being contorted on a mattress during sleeping. The hip-up underwear of the present invention can be worn during daily life or during sleep so as to shape-up the hip and gather, compress, and cover the belly fat of the wearer, thereby remarkably improving the effects of body shape correction through hip-up and compressing the belly fat of the wearer. | 02-14-2013 |