Display device

• Main Authors: Park, Taehwa, Cho, SoonDong, Jang, Wonyong, Jang, Hoon, Lee, Sang-Uk
• Format: Patent
• Language: English
• Published: 30.07.2024
• Subjects: ADVERTISING; APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS; ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; CRYPTOGRAPHY; DISPLAY; EDUCATION; ELECTRICITY; GENERATION; PHYSICS; SEALS

A power supply includes a first converter configured to convert an input voltage into a first output voltage, a first feedback circuit configured to output a first pulse width modulation (PWM) signal to the first converter to control a level of the first output voltage, and a mode controller configured to compare the input voltage and a reference voltage and determine whether the first converter operates in a first mode or a second mode based on the compared result. When the input voltage is less than or equal to the reference voltage, the first converter boosts the input voltage and outputs the boosted voltage as the first output voltage in the first mode. Further, when the input voltage is greater than the reference voltage, the first converter bypasses the input voltage and outputs the bypassed voltage as the first output voltage in the second mode.