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A multi-channel voltage output circuit and method based on a digital linear regulator

A digital linear, voltage output technology, applied in output power conversion devices, DC power input to DC power output, instruments, etc., can solve the problems of noise sensitivity, slow response to load changes, and insufficient process portability. Achieve the effect of increasing the number of channels, improving the response speed, and good process portability

Active Publication Date: 2020-07-03
HUAZHONG UNIV OF SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the defects of the prior art, the purpose of the present invention is to provide a multi-channel voltage output circuit and method based on a digital linear regulator, aiming at solving the problem of sensitivity to noise and technical problems in the multi-voltage output mode based on an analog linear regulator. Insufficient portability and slow response to load changes

Method used

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  • A multi-channel voltage output circuit and method based on a digital linear regulator
  • A multi-channel voltage output circuit and method based on a digital linear regulator
  • A multi-channel voltage output circuit and method based on a digital linear regulator

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Embodiment 1

[0050] On-chip optical signal control of input voltages to multichannel phase shifters in programmable optical processors. The output voltage of each channel in the multi-channel digital linear regulator is respectively used as the input voltage of a phase shifter in the programmable optical processor, and the controller in the programmable optical processor converts the light detected by the monitor in each channel to The signal is converted into the reference voltage corresponding to the channel. When a channel is selected, the first multiplexer selects the reference voltage corresponding to the channel, and the second multiplexer selects the output voltage corresponding to the channel. , the control loop can calibrate the input voltage of the phase shifter in the channel once. The control loop of the digital linear regulator switches quickly between different channels to realize the voltage control of the multi-channel phase shifter. Such as figure 2 As shown, the specif...

Embodiment 2

[0058] Off-chip input signal control of multi-channel phase shifter input voltage in programmable optical processors. The output voltage of each channel in the multi-channel digital linear regulator is used as the input voltage of a phase shifter in the programmable optical processor, and the controller in the programmable optical processor converts the off-chip input signal of each channel into The reference voltage corresponding to the channel, when a channel is selected, the first multiplexer selects the reference voltage corresponding to the channel, the second multiplexer selects the output voltage corresponding to the channel, and the control loop The input voltage of the phase shifter in the channel can be calibrated once. The control loop of the digital linear regulator switches quickly between different channels to realize the voltage control of the multi-channel phase shifter. Such as image 3 As shown, the specific steps of the off-chip input signal control of the...

Embodiment 3

[0068] Mixing control of off-chip input signal and on-chip optical signal for multi-channel phase shifter input voltage in programmable optical processor. The output voltage of each channel in the multi-channel digital linear regulator is respectively used as the input voltage of a phase shifter in the programmable optical processor, and the controller in the programmable optical processor is based on the off-chip input signal of each channel and the The optical signal monitored by the channel monitor calculates the reference voltage corresponding to the channel. When a channel is selected, the first multiplexer selects the reference voltage corresponding to the channel, and the second multiplexer selects the reference voltage corresponding to the channel. By selecting the output voltage corresponding to the channel, the control loop can calibrate the input voltage of the phase shifter in the channel once. The control loop of the digital linear regulator switches quickly betwe...

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Abstract

The invention discloses a multi-channel voltage output circuit and method based on a digital linear voltage stabilizer; the circuit comprises a first multiplexer, a second multiplexer, a comparator, ashifting register, N latch arrays, N power tube arrays and a clock control circuit; the two input ends of the comparator are connected with the two multiplexers respectively, and the output ends areconnected with the shifting register; the output end of the shifting register is connected with the N groups of latch arrays separately; the output ends of the N groups of latch arrays are connected with the N groups of power tube arrays respectively; the outputs of the N groups of power tube arrays are used as output end of the multi-channel voltage output circuit; and the clock control circuit is used for controlling the gating of the multiplexers and the switching time sequence of the N groups of latch array selector switches. According to the circuit, the defects of easy noise interference, poor process transportability, relatively low response speed and the like existing in the multi-channel voltage output method based on an analog linear voltage stabilizer can be overcome, and the circuit and the method have great application in a photoelectric micro-control system.

Description

technical field [0001] The invention belongs to the field of power management, and more specifically relates to a multi-channel voltage output circuit and method based on a digital linear regulator. Background technique [0002] Voltage control circuits have important applications in many optoelectronic micro-control systems. Various functions can be realized by controlling the input voltage of different subunits in the optoelectronic micro-control system. For example, in a programmable optical processor, the basic computing unit usually consists of a Mach-Zendr interferometer. By controlling the input voltage to the phase shifter on the interferometric arm, the amplitude and phase of the interferometer output can be adjusted. Combining phase-controllable interferometer units into an array can realize arbitrary unitary matrix operations, and then supplemented with amplifiers and attenuators to realize arbitrary matrix operations. In addition, by repeatedly updating the inp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M3/157H02M1/092
CPCH02M1/092H02M3/157
Inventor 谭旻叶开轩王星泽
Owner HUAZHONG UNIV OF SCI & TECH
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