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Track Energy Consumption Using Buck-Boost Technology

An energy and tracking system technology, which is applied in the direction of electric power measurement, measurement device, and measurement of electric variables through the application of digital technology, which can solve the problems of inability to track large current magnitudes and weak pairing.

Active Publication Date: 2018-12-07
TEXAS INSTR INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the required pairing of power and sense field-effect transistors (FETs) is weak and cannot track the large current levels supported

Method used

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  • Track Energy Consumption Using Buck-Boost Technology
  • Track Energy Consumption Using Buck-Boost Technology
  • Track Energy Consumption Using Buck-Boost Technology

Examples

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Embodiment Construction

[0021] FIG. 1 shows a circuit 101 that measures the load current via a voltage-to-voltage converter 102 , an A / D converter 104 and a timer 106 . The energy EL used by the load is calculated in block EL108. The voltage VL is measured via the A / D converter 104 . When the A / D converter 104 is used for continuous conversion, phase related errors can occur. Timer 106 is used to create a time base t(b) for A / D converter 104 . The energy EL used by the load (ie, DUT) is calculated from the block EL according to Equation 1 below.

[0022] Formula 1 ELx=IL*VL*t(b) where x={1...i}

[0023] Figure 2aA simplified diagram of one embodiment of the invention is shown. In this embodiment, the energy tracking system 200 includes energy transmission blocks 202 , 204 , 206 , a control circuit 201 and a reference impedance 205 . In an embodiment of the invention, energy transfer block 202 is a "boost" circuit comprising switching transistors SWA and SWB, diode DA, capacitor CA and inductor ...

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Abstract

One uses buck-boost technology to track energy consumption. The present invention relates to devices and methods for tracking energy consumption. The energy tracking system (200) includes at least one switching element (SWA), at least one inductor (LA) and a control block (432) to maintain the output voltage (V1) at a preselected level. The switching elements (SWA and SWB) are configured to apply the energy source to the inductor (LA). The control block (410) compares the output voltage (VO) of the energy tracking system (200) with a reference value (ref) and controls switching of the switching elements (202, 204 and 206) so that at the output of the energy tracking system (200) Transfers energy from the primary voltage (VPS) to the secondary voltage (VO). The electronic device further includes an on-time and off-time generator (408) and an accumulator (430), wherein the control block (432) is coupled to receive signals from the on-time and off-time generator (408) (TG1) and generate a switching signal for at least one switching element (SWA) in the form of an on-time pulse, wherein the on-time pulse has an on-time of constant width.

Description

technical field [0001] The present invention relates to an electronic device and method for tracking energy consumption, and more particularly to an electronic device and method for determining energy consumption using the principle of storing energy in an inductor and transferring energy to an output energy storage component . [0002] This application is related to commonly-owned US Patent Application Serial No. 13 / 329,073, entitled "Electronic Device and Method for Power Measurement." Background technique [0003] Reducing energy consumption is important in the development and improvement of electronic devices, especially if they are mobile or portable electronic devices. In order to save energy, electronic devices are increasingly controlled by complex schemes in which the magnitude of the consumed current varies in the range of tens of orders of magnitude. In low-power mode, hundreds of nA (nanoamperes) can be drawn, while other operating modes require up to several h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R22/06
CPCG01R22/10H02M3/1582G01R21/00G01R21/133
Inventor H·戴沃德J·齐佩雷尔P·韦伯尔A·布劳赫勒
Owner TEXAS INSTR INC