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The current boosting module (CBM) is proposed to be implemented in an error amplifier (EA) for improving the load transient of a dc–dc converter. To enhance the slew rate of the EA during transient, the CBM is adopted to raise/reduce the gate voltages of the output-stage transistors of the EA for enhancing its current driving capability with simple circuitry. Moreover, to save power consumption in...
An LED driver composed of a boost converter and dimmable current regulators with adaptive voltage feedback control (AVFC) is proposed. The AVFC is fulfilled with two diodes, one integrator, and one subtractor to sense the voltage variation among the current regulators and then to generate an adaptive reference voltage. According to the reference voltage, the output voltage of the boost converter is...
This paper proposes a dual-path frequency compensation (DPFC) for implementing on-chip error amplifier (EA). The DPFC uses two operation amplifiers to simultaneously charge and discharge a compensation capacitor. As a result, the equivalent capacitance is significantly multiplied with small additional power and silicon area. Since the slew rate of the EA is increased owing to the small compensation...
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