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Signal adjusting device

A signal adjustment, transistor technology, applied in the direction of output power conversion device, adjustment of electrical variables, control/regulation system, etc., can solve problems such as phase shift

Active Publication Date: 2020-02-14
北京兆芯电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, the present invention proposes a signal adjustment device with a new structure to solve the problem of phase shift caused by low-voltage power supply voltage

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Embodiment Construction

[0012] The present invention is described with reference to the drawings, wherein like reference numerals are used throughout to designate similar or equivalent components. The drawings are not drawn to scale, but serve only to illustrate the invention. Several aspects of the invention are described below, with reference to example applications for illustration. It should be understood that numerous specific details, relationships and methods are set forth in order to provide a thorough understanding of the invention. However, one of ordinary skill in the relevant art will readily recognize that the present invention may be practiced without one or more of the specific details or with other methods of practicing the invention. In other instances, well-known structures or operations have not been shown in detail to avoid obscuring the invention. The invention is not limited by the order of acts or events illustrated, as some acts may occur in different orders and / or concurren...

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Abstract

A signal adjusting device comprises a first current mirror, a second current mirror, a first N-type transistor and a second N-type transistor. The first current mirror comprises a first output end anda second output end for providing a first current and a second current respectively. The second current mirror comprises a third output end and a fourth output end for providing a third current and afourth current respectively. The first end of the first N-type transistor is connected to the first output end and the third output end, the second end of the first N-type transistor is coupled to asecond power supply voltage, and the control end of the first N-type transistor is coupled to a control voltage. The first end of the second N-type transistor is connected to the second output end andthe fourth output end, the second end of the second N-type transistor is coupled to a second power supply voltage, and the control end of the second N-type transistor is coupled to a reference voltage.

Description

technical field [0001] The invention relates to a signal adjustment device, in particular to a signal adjustment device used in semiconductor memory devices such as flash memory. Background technique [0002] With the miniaturization of semiconductor design, the operating voltage for driving the semiconductor device is also reduced, and the power supply voltage (Vdd or Vpp) provided to the semiconductor device is also lowered. For example, the power supply voltage externally supplied from the semiconductor memory is reduced from 3.3 volts (V) to 2.5V or 1.8V. Today, externally supplied supply voltages are more likely down to 1.2V. As the external power supply voltage decreases, the signals in the semiconductor device, such as control signals, PWM signals, analog / digital signals, etc., will have obvious phase shifts, so that the working efficiency of the semiconductor device will decrease. On the other hand, the internal circuits of semiconductor memory devices such as flas...

Claims

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Application Information

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IPC IPC(8): H02M3/157H02M3/158
CPCH02M3/157H02M3/158
Inventor 李申刘中鼎
Owner 北京兆芯电子科技有限公司