Digital controller with level conversion function and level conversion circuit of digital controller

Abstract

The invention relates to a digital controller with a level conversion function and a level conversion circuit of the digital controller. The digital controller is provided with the level conversion circuit. The level conversion circuit is mainly characterized in that a direct-current shunting loop is arranged between an alternating-current / direct-current separating loop and a direct-current level loop, each of the alternating-current / direct-current separating loop and the direct-current level loop respectively forms a feedback structure together with an alternating-current loop controller and a direct-current loop controller, and the alternating-current / direct-current separating loop is respectively connected with the output end of a power supply device and an alternating-current detecting circuit; and the direct-current level loop generates a direct-current shunting current so as to enable a direct current of the alternating-current / direct-current separating loop to flow to the direct-current shunting loop, and an alternating current of the alternating-current / direct-current separating loop is detected by the alternating-current detecting circuit and is supplied to an analog-digital converter arranged in the digital controller so as to execute voltage stabilization.

Description

technical field [0001] The present invention is a digital controller, especially a digital controller with a level conversion function and a level conversion circuit that can be integrated into the digital controller in a semiconductor manufacturing process. Background technique [0002] An existing power supply such as Figure 5 As shown, it includes a DC-to-DC conversion unit 21 and a digital controller 22; wherein, the DC-to-DC conversion unit 21 has a power input terminal and a power output terminal, and the power output terminal passes through a level conversion circuit 23 Be connected with the input terminal of digital controller 22; [0003] The digital controller 22 includes an analog-to-digital converter 221, a digital compensator 222 and a digital pulse width modulator 223; the input of the analog-to-digital converter 221 is connected to the output of the level conversion circuit 23, and the digital The output end of the pulse width modulator 223 is used to contro...

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Problems solved by technology

[0010] It can be seen from the above description that although the aforementioned level conversion circuit can lower the output voltage of the power supply and provide it to the digital controller for voltage stabilization, however, the aforementioned level conversion circuit consists of many components installed on the circuit board with preset circuits As a result, the power density of the power supply cannot be further increased due to its large footprint; moreover, each component that forms the level conversion circuit has a certain tolerance range, so it must be fine-tuned frequently after the composition to make the existing position It is also another significant inconvenience for the normal operation of the quasi-conversion circuit

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