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Invention Publication
CN106208695A DC-DC转换器和具有该DC-DC转换器的显示设备 有权

DC-DC转换器和具有该DC-DC转换器的显示设备
Abstract:
本发明公开一种DC-DC转换器和具有该DC-DC转换器的显示设备。该DC-DC转换器用于向显示面板供给第一电源电压和第二电源电压，并且包括：响应于控制信号将输入电源电压转换为第一电源电压的第一转换模块，当第一电源电压被输出时检测显示面板的驱动电流的检测器，以及响应于控制信号将输入电源电压转换为比第一电源电压低的第二电源电压的第二转换模块，第二转换模块包括：对应于输入电源电压产生第二电源电压而不考虑检测到的驱动电流的量的第一反相转换器，以及对应于输入电源电压并根据检测到的驱动电流的量选择性地产生第二电源电压的第二反相转换器。
Abstract(English):

A DC-DC converter for supplying a display panel with first and second power voltages, the DC-DC converter includes: a first converting module to convert an input power voltage into the first power voltage in response to a control signal; a sensor to detect a drive current of the display panel when the first power voltage is output; and a second converting module to convert the input power voltage into the second power voltage lower than the first power voltage in response to the control signal, the second converting module including: a first inverting converter to generate the second power voltage corresponding to the input power voltage regardless of an amount of the detected drive current; and a second inverting converter to selectively generate the second power voltage corresponding to the input power voltage and according to the amount of the detected drive current.

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