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An enhanced controllable voltage stabilizer device

A stabilized voltage source, enhanced technology, applied in the direction of control/regulation system, adjustment of electrical variables, instruments, etc., can solve the problems of unable to meet the needs of the system, the current output capacity of the positive power supply lacks the current absorption capacity, and the lack of current output capacity. Achieve the effect of high integration, small size and enhanced driving ability

Active Publication Date: 2018-09-07
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the board-level regulated power supply obtained by these methods usually only has current output capability but lacks current sink capability for positive power supply, and negative power supply only has current sink capability but lacks current output capability.
In many applications, the limitation of such output drive cannot meet the needs of the system

Method used

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  • An enhanced controllable voltage stabilizer device
  • An enhanced controllable voltage stabilizer device

Examples

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Embodiment

[0023] figure 1 It is a principle diagram of an enhanced controllable voltage stabilizing source device of the present invention.

[0024] In this example, if figure 1 As shown, an enhanced controllable voltage regulator device of the present invention includes: an output voltage controllable circuit 1, an enhanced output circuit 2 and a filter circuit 3;

[0025] Wherein, the output voltage controllable circuit 1 includes: a DAC control circuit 101, a reference level generation circuit 102 and a voltage stabilization level synthesis circuit 103;

[0026] The external FPGA control signal is input to the DAC control circuit 101, and the DAC control circuit 101 converts the input external FPGA control signal input into an analog signal, so that a precise and controllable analog level can be obtained, which is marked as a controllable level VDAC signal;

[0027] The reference level generation circuit 102 generates the reference level VREF required by the DAC chip;

[0028] The...

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Abstract

The invention discloses an enhanced controllable voltage stabilizing source device. Firstly, the output signals of the DAC control circuit and the reference level generating circuit are synthesized and amplified, and output to the enhanced output circuit through the voltage stabilizing level synthesizing circuit to obtain a controllable Level Uo, when the controllable level Uo is input to the enhanced output circuit, the controllable level Uo can be freely switched between the sink current and the output current through the output source circuit and the sink source circuit according to the change of the load, and output Level Vout, so as to realize the two-way following of the circuit, and finally filter the output level Vout through the filter circuit, filter out the ripple generated by the front-end circuit, and then input the output signal of the filter circuit to the load circuit.

Description

technical field [0001] The invention belongs to the technical field of board-level power supply synthesis, and more specifically, relates to an enhanced controllable voltage-stabilizing source device. Background technique [0002] The power supply is the energy source for all electronic systems, and a stable and reliable power supply is the basic condition for high performance of the system. The supply of circuit board-level power is particularly important for the realization of the functional indicators of the module. The requirements for board-level power supply usually involve high level stability, small size and high integration, but relatively small requirements for output power. [0003] Traditional board-level power supplies, such as +5.0V, -5.2V, +1.3V in digital systems, are usually obtained by DC / DC methods, or by Zener diodes for smaller power requirements. However, the board-level regulated power supply obtained by these methods generally has only current outpu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05F1/56
Inventor 付在明梁特刘航麟周文建
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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