Hybrid power supply framework
A power supply and transistor technology, applied in the direction of adjusting electrical variables, control/regulation systems, instruments, etc., can solve problems such as low electrical efficiency and inability to effectively reduce operating losses, so as to protect loads, improve power conversion efficiency, and maintain stability sexual effect
Active Publication Date: 2014-05-21
CELESTICA TECH CONSULTANCY SHANGHAI
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That is to say, linear regulation is suitable for light load applications, while switching regulation is suitable for heavy loads, so that in applications with large load fluctuation ranges, linear regulation or switching regulation alone cannot effectively reduce the overall operating loss, resulting in Electrically inefficient
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[0014] The implementation of the present invention will be described in more detail below with reference to figures and symbol numbers, so that those skilled in the art can implement it after studying this specification.
[0015] refer to figure 1 , is a system schematic diagram of a hybrid power supply architecture according to an embodiment of the present invention. Such as figure 1 As shown, the hybrid power supply architecture of the present invention mainly includes a microcontroller 10, a linear regulator 20, a first current sensing unit 21, a switching regulator 30, a second current sensing unit 31, and a hybrid output stage 40. The microcontroller The controller 10 performs a preset control operation, and can convert the input power Vin into an output power Vout to supply to an external load RL.
[0016] Specifically, the linear regulator 20 has a linear regulation function, and performs linear regulation processing under the control of the microcontroller 10 , recei...
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The invention discloses a hybrid power supply framework. The hybrid power supply framework comprises a microcontroller, a linear regulator, a first current sensing unit, a second current sensing unit, a switching regulator, a PWM controller and a hybrid output stage. The hybrid power supply framework is characterized in that the linear regulator and the switching regulator carry out the linear regulating process and the switching regulating process respectively according to a first enabling signal and a second enabling signal of the microcontroller to generate a linear output power source and a switching output power source, the first current sensing unit and the second current sensing unit sense the linear output power source and the switching output power source respectively to generate a first current sensing signal and a second current sensing signal, the microcontroller receives the current sensing signals to judge the load state, when there are heavy loads, the switching regulator is started, and especially when the switching output power source is stable, the linear regulator is closed. Thus, the hybrid power supply framework can achieve the purpose of the hybrid power supply of seamless switching with the optimal electric efficiency.
Description
technical field [0001] The present invention relates to a hybrid power supply architecture, especially a hybrid power supply that can activate a linear regulator or a switching regulator according to the load level to achieve seamless switching with optimal electrical efficiency. Background technique [0002] Electronic devices with different operating electrical characteristics usually require specific power sources of different voltages, currents or powers to provide the required operating power. For example, electric motors require 12V DC, analog chips require 3.3V, and digital chips generally require 1.8V. Therefore, Those in the power management category develop various power conditioning devices and power conversion devices to meet needs. In addition, when the original input power is unstable, for example, the mains is often affected by the load imbalance and often has a large voltage boost or voltage drop, and a voltage stabilizing or regulating device with a voltage ...
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Inventor 林政宏
Owner CELESTICA TECH CONSULTANCY SHANGHAI