【專利讓與及授權】科技部計畫產出專利公告(5件)

項次

技術名稱

專利證書號

摘要

專利期

1

HIGH EFFICIENCY SINGLE STAGE BIDIRECTIONAL CONVERTER

US7,375,985 B2

The present invention focuses on the development of a high-efficiency single-stage bidirectional converter with multi-input power sources. In the present invention, it takes a three-winding coupled inductor as the main component of energy transmission, and utilizes only two power semiconductor switches to accomplish the multi-input function. According to the designed switching conditions, this circuit could be operated at discharge, charge and standalone states to simplify conventional structure in which multiple converters are used in boosting voltage and then connected in parallel to supply power. Moreover, the coupled inductor as the principal part of this circuit has high-voltage gain property, and the present invention fully utilizes the winding voltage in the high-voltage side to further increase the corresponding voltage gain superior to that in the conventional coupled-inductor strategy. This property is helpful to solve the power conversion problem caused by clean energies with inherent low-voltage characteristics. In addition, all switches and diodes have favorable voltage-clamped effects so that the voltage spikes induced by the leakage-induction energy can be alleviated effectively, and there are no high reverse-recovery currents within diodes because the leakage induction can restrain instantaneous changes in the current. Furthermore, the present invention has a charging route of low-voltage conversion without adding additional components, avoiding the power losses induced by the multistage conversion in the traditional auxiliary power systems, and utilizes the synchronous rectification technique to decrease the conducting losses.

2006/03/17~2026/03/17

2

HIGH-EFFICIENCY HIGH-VOLTAGE DIFFERENCE RATIO BI-DIRECTIONAL CONVERTER

US7,382,113 B2

The aim of this invention focuses on the development of a high-efficiency bidirectional converter for power sources with great voltage diversity. In traditional bidirectional converters, the circuit topology with transformer form is the common usual. Moreover, the soft-switching techniques including zero-voltage-switching (ZVS) or zero-current-switching (ZCS) are usually used for alleviating the corresponding switching losses. However, there are four and upward power semiconductor switches in these circuit schemes. By this way, it will result in the increase of production cost, and the degeneration of conversion efficiency. The coupled-inductor bidirectional scheme in the proposed converter only adopts three power semiconductor switches to accomplish the objective of bidirectional current control. Under the situation of non-isolation circuit topology, it still possesses the protection of electric safety for operators. Due to the characteristics of high step-up and step-down ratio, the battery module with low voltage could be injected into a high-voltage dc bus for the later utilization, e.g., high-voltage load, front-end of inverter. Since the techniques of voltage clamping, synchronous rectification and soft switching are manipulated in this circuit topology, and the corresponding device specifications are adequately performed, it can achieve the goal of high-efficiency bidirectional power conversion for power sources with great voltage diversity.

2006/03/17~2026/03/17

3

可攜式遠距居家生理訊號監測系統

I286714

一種可攜式遠距居家生理訊號監測系統，用以監測受測者之生理訊號在居家生活中的變化，其包括至少一分散式資料伺服器、至少一生命訊號檢測裝置及至少一第一用戶端電腦；該生命訊號檢測裝置與第一用戶端電腦皆連接至該分散式資料伺服器；當受測者的生理訊號發生異常時，該分散式資料伺服器會發送一警示訊息至預設的手機或PDA門號或是到一電子郵件信箱，以即時通知受測者的家屬或醫師。

2007/09/11~2026/04/20

4

HIGH-PERFORMANCE SOLAR PHOTOVOLTAIC(PV) ENERGY CONVERSION SYSTEM

US7,479,774 B2

The present invention focuses on the development of a high-performance solar photovoltaic (PV) energy conversion system. The power circuit of the invention is made of a two-stage circuit, connecting a step-up DC-DC converter and a full-bridge inverter in serial. The present invention uses an adaptive perturbation and observation method to increase tracking speed of maximum power position and at the same time reduces energy loss. In addition, the full-bridge inverter's output has to have the same phase with the utility power in order to achieve unit power factor and increase the system efficiency. The present invention uses voltage type current control full-bridge inverter to achieve the goal of merging into utility grid. The present invention provides an active Sun tracking system, by utilizing the character of changing in open circuit output voltage with Sun radiation strength to follow the Sun, and decreases the system cost and increases system effectiveness.

2006/04/07~2027/04/07

5

HIGH SPEED BALL SHEAR MACHINE

US7,950,565 B2

A high speed ball shear machine is adapted for removing a metal bump fixed on a substrate. The high speed ball shear machine includes a fixing base, a shear tool, and a metal bump catcher. The substrate is fixed on the top surface of the fixing base. The shear tool is disposed above the top surface. The fixing base is adapted for being translated along a translation path relative to the shear tool, wherein the translation path is a straight path. When the fixing base translates along the path, the metal bump is driven to strike the shear tool so as to separate itself from the substrate. The metal bump catcher, which is adapted for catching the drop bump after the striking, is disposed on the side wall of the fixing base. The bump catcher has a fillister with a configuration depicted in the figures of this invention.

2009/09/08~2029/09/08