TWI482393B - Power supply system having pulse signal generator - Google Patents
Power supply system having pulse signal generator Download PDFInfo
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- TWI482393B TWI482393B TW102103595A TW102103595A TWI482393B TW I482393 B TWI482393 B TW I482393B TW 102103595 A TW102103595 A TW 102103595A TW 102103595 A TW102103595 A TW 102103595A TW I482393 B TWI482393 B TW I482393B
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- 238000006243 chemical reaction Methods 0.000 claims description 15
- 238000001514 detection method Methods 0.000 claims description 12
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims description 2
- 229910001416 lithium ion Inorganic materials 0.000 claims description 2
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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Description
本案係關於一種電源供應系統，尤指一種具有脈衝信號產生器之電源供應系統。 The present invention relates to a power supply system, and more particularly to a power supply system having a pulse signal generator.
由於新一代太陽能電池(Solar cell)的效率不斷提升，量產投資規模不斷提高，價格不斷下降，加上政府補貼鼓勵，使得全球的使用量越來越大，且隨著新材料不斷的被研發出來，太陽能電池更具多樣化，更發展出將太陽能電池應用於家庭產品，例如：屋頂、窗戶、窗簾等，對於節約能源及環境保護很有幫助。 As the efficiency of the new generation of solar cells continues to increase, the scale of investment in mass production continues to increase, prices continue to fall, and government subsidies encourage the use of the world, and the new materials are continuously developed. Come out, solar cells are more diversified, and the development of solar cells for household products, such as roofs, windows, curtains, etc., is very helpful for energy conservation and environmental protection.
請參閱第1圖，其係為習知以太陽能電池作為供電電源之供電電路架構示意圖，如圖所示，習知之供電電路主要係由太陽能電池11提供充電電源，以對電池模組15進行充電並提供負載12運作所需之電源，另外習知之供電電路更包含一隔離二級體13以及一切換開關14，隔離二級體13的一端係與太陽能電池11電性連接，另一端則與負載12及切換開關14電性連接，切換開關14的一端係與隔離二級體13及負載12電性連接，另一端則與電池模組15電性連接。 Please refer to FIG. 1 , which is a schematic diagram of a power supply circuit structure using a solar battery as a power supply. As shown in the figure, a conventional power supply circuit mainly supplies a charging power source by a solar battery 11 to charge the battery module 15 . The power supply circuit further includes an isolated secondary body 13 and a switch 14 . One end of the isolated secondary body 13 is electrically connected to the solar battery 11 and the other end is connected to the load. 12 and the switch 14 are electrically connected. One end of the switch 14 is electrically connected to the isolation diode 13 and the load 12, and the other end is electrically connected to the battery module 15.
當太陽能電池11對電池模組15進行充電程序時，切換開關14將導通，使太陽能電池11所產生之電源經由隔離二級體13以及切換開 關14對電池模組15進行充電，同時亦可經由隔離二級體13提供負載12運作所需之電源，一直到電池模組15內部所儲存之電壓接近飽和電壓時，切換開關14將截止，使得太陽能電池11無法再對電池模組15進行充電。 When the solar battery 11 performs a charging procedure on the battery module 15, the switch 14 is turned on, so that the power generated by the solar battery 11 is switched through the isolation diode 13 and switched on. The switch 14 charges the battery module 15 and also supplies the power required for the operation of the load 12 via the isolated secondary body 13. Until the voltage stored in the battery module 15 approaches the saturation voltage, the switch 14 is turned off. The solar battery 11 can no longer be charged to the battery module 15.
當電池模組15開始吸收極少電流或切換開關14截止時，太陽能電池11亦可經由隔離二級體13隨時提供負載12運作所需之電源，但是當電池模組15開始吸收極少電流或切換開關14截止時，此時如果負載12也消耗極少電流或異常斷電，而太陽能電池11係進入開路高壓的狀態，太陽能電池11持續運作所產生的高電壓會發生燒毀負載12內部電路的情況。 When the battery module 15 starts to absorb very little current or the switch 14 is turned off, the solar cell 11 can also provide the power required for the operation of the load 12 via the isolation diode 13 at any time, but when the battery module 15 starts to absorb very little current or switch At the time of the end of the 14th, at this time, if the load 12 also consumes a small amount of current or abnormally power-off, and the solar cell 11 enters the state of the open circuit high voltage, the high voltage generated by the continuous operation of the solar cell 11 may cause the internal circuit of the load 12 to be burnt.
因此，如何發展一種可解決上述習知缺失之具有脈衝信號產生器之電源供應系統，實為目前迫切需要解決之問題。 Therefore, how to develop a power supply system with a pulse signal generator that can solve the above-mentioned conventional problems is an urgent problem to be solved.
本案之主要目的在於提供一種具有脈衝信號產生器之電源供應系統，俾解決習知供電電路於電池模組開始吸收極少電流或切換開關截止時，此時如果負載也消耗極少電流或異常斷電，太陽能電池進入開路高壓的狀態，會燒毀負載電路之缺點。 The main purpose of the present invention is to provide a power supply system with a pulse signal generator, which solves the problem that the conventional power supply circuit starts to absorb very little current or the switch is turned off, and if the load also consumes very little current or abnormal power off, When the solar cell enters an open circuit high voltage state, it will burn down the shortcomings of the load circuit.
為達上述目的，本案之一較廣義實施態樣為提供一種電源供應系統，與一負載連接，至少包含：一電池模組；一供電電源，提供一輸入電壓；一切換開關，一端與該供電電源電性連接，另一端經由電阻與一接地端電性連接；一電源轉換電路，與該供電電源、該切換開關及該電池模組電性連接，用以將該輸入電壓轉換成一輸出電壓，以對該電池模組進行充電並提供該負載所需之電源 ；一偵測電路，與該切換開關及該電源轉換電路電性連接，以偵測該輸入電壓；以及一控制電路，與該偵測電路及該切換開關電性連接，且具有一比較器及一脈衝信號產生器，該脈衝信號產生器係與該比較器及該切換開關電性連接，該比較器係與該偵測電路及該脈衝信號產生器電性連接，該比較器係將該輸入電壓與一預設參考電壓進行比較，於該輸入電壓大於該預設參考電壓時，產生一控制信號至該脈衝信號產生器，使該脈衝信號產生器因應該控制信號產生一脈衝信號，以控制該切換開關導通，並以該脈衝信號之一脈衝時間延長該切換開關之導通時間，使該供電電源所輸出之一輸入電流經由該切換開關、電阻傳送至該接地端，立即降低輸入電壓，消耗電源電力，平衡系統能量；在脈衝時間過後，亦能迅速恢復正常供電及監測輸入電壓。 In order to achieve the above object, a broader aspect of the present invention provides a power supply system connected to a load, comprising at least: a battery module; a power supply, providing an input voltage; a switch, one end and the power supply The power supply is electrically connected, and the other end is electrically connected to a ground through a resistor; a power conversion circuit is electrically connected to the power supply, the switch, and the battery module for converting the input voltage into an output voltage. Charging the battery module and providing the power required for the load a detection circuit electrically connected to the switch and the power conversion circuit to detect the input voltage; and a control circuit electrically connected to the detection circuit and the switch, and having a comparator and a pulse signal generator, the pulse signal generator is electrically connected to the comparator and the switch, the comparator is electrically connected to the detecting circuit and the pulse signal generator, and the comparator is the input The voltage is compared with a predetermined reference voltage. When the input voltage is greater than the predetermined reference voltage, a control signal is generated to the pulse signal generator, so that the pulse signal generator generates a pulse signal according to the control signal to control The switch is turned on, and the on-time of the switch is extended by one pulse of the pulse signal, so that an input current output by the power supply is transmitted to the ground through the switch and the resistor, and the input voltage is immediately reduced, and the power is consumed. Power supply, balance system energy; after the pulse time, it can quickly restore normal power supply and monitor input voltage.
11‧‧‧太陽能電池 11‧‧‧Solar battery
12、3‧‧‧負載 12, 3‧‧‧ load
13‧‧‧隔離二級體 13‧‧‧Isolated secondary body
14‧‧‧切換開關 14‧‧‧Toggle switch
15‧‧‧電池模組 15‧‧‧Battery module
2‧‧‧電源供應系統 2‧‧‧Power supply system
21‧‧‧供電電源 21‧‧‧Power supply
22‧‧‧電源轉換電路 22‧‧‧Power conversion circuit
23‧‧‧電池模組 23‧‧‧Battery module
24‧‧‧偵測電路 24‧‧‧Detection circuit
25‧‧‧控制電路 25‧‧‧Control circuit
251‧‧‧比較器 251‧‧‧ Comparator
252‧‧‧脈衝信號產生器 252‧‧‧ pulse signal generator
26‧‧‧切換開關 26‧‧‧Toggle switch
Vin‧‧‧輸入電壓 Vin‧‧‧Input voltage
Vout‧‧‧輸出電壓 Vout‧‧‧ output voltage
Vb‧‧‧電池電壓 Vb‧‧‧ battery voltage
Sc‧‧‧控制信號 Sc‧‧‧ control signal
Sp‧‧‧脈衝信號 Sp‧‧‧ pulse signal
Vref‧‧‧預設參考電壓 Vref‧‧‧Preset reference voltage
R‧‧‧電阻 R‧‧‧resistance
G‧‧‧接地端 G‧‧‧ Grounding terminal
T‧‧‧脈衝時間 T‧‧‧ pulse time
第1圖係為習知以太陽能電池作為供電電源之供電電路架構示意圖。 The first figure is a schematic diagram of a power supply circuit structure using a solar cell as a power supply.
第2圖係為本案較佳實施例之電源供應系統之電路結構示意圖。 Figure 2 is a schematic diagram showing the circuit structure of the power supply system of the preferred embodiment of the present invention.
第3圖係為第2圖所示之輸入電壓、電池電壓以及切換開關作動之波形圖。 Figure 3 is a waveform diagram of the input voltage, battery voltage, and switching switch operation shown in Figure 2.
體現本案特徵與優點的一些典型實施例將在後段的說明中詳細敘述。應理解的是本案能夠在不同的態樣上具有各種的變化，其皆不脫離本案的範圍，且其中的說明及圖示在本質上係當作說明之用，而非架構於限制本案。 Some exemplary embodiments embodying the features and advantages of the present invention are described in detail in the following description. It is to be understood that the present invention is capable of various modifications in various aspects, and is not to be construed as a limitation.
請參閱第2圖，其係為本案較佳實施例之之電源供應系統之電路 結構示意圖。如第2圖所示，本案之電源供應系統2係與負載3電性連接，用以提供負載3運作所需之電源，電源供應系統2可包含供電電源21、電源轉換電路22、電池模組23、偵測電路24、控制電路25以及切換開關26，其中供電電源21主要用來提供一輸入電壓Vin，且供電電源21可為太陽能電池或是風力發電機，其內部可包含一蓄電池(未圖示)，於本實施例中，供電電源21內部所包含之蓄電池可為鉛酸電池、鋰離子電池或是磷酸鐵鋰電池其中之一。 Please refer to FIG. 2, which is a circuit of the power supply system of the preferred embodiment of the present invention. Schematic. As shown in FIG. 2, the power supply system 2 of the present invention is electrically connected to the load 3 for providing power required for the operation of the load 3. The power supply system 2 can include a power supply 21, a power conversion circuit 22, and a battery module. The detection circuit 24, the control circuit 25, and the changeover switch 26, wherein the power supply 21 is mainly used to provide an input voltage Vin, and the power supply 21 can be a solar cell or a wind power generator, and a battery can be included therein. As shown in the figure, in the embodiment, the battery included in the power supply 21 may be one of a lead acid battery, a lithium ion battery, or a lithium iron phosphate battery.
本案之電源轉換電路22可為一直流直流轉換電路，其係與供電電源21、切換開關26、偵測電路24及電池模組23電性連接，可將輸入電壓Vin轉換成一直流輸出電壓Vout，以對電池模組23進行充電並提供負載3運作所需之電源，而偵測電路24之一端係與切換開關26及電源轉換電路22電性連接，而另一端則與控制電路25電性連接，主要用來偵測供電電源21所提供之輸入電壓Vin，於本實施例中，偵測電路24可為但不限為由一分壓電路所構成，另外，本案之切換開關26其一端與供電電源21電性連接，另一端則與一電阻R電性連接，電阻R的另一端則電性連接一接地端G；其中本案之電阻R會消耗電源電力，可為半導體之導通電阻、作為假負載之水泥電阻或其他輔助負載。 The power conversion circuit 22 of the present invention can be a DC/DC conversion circuit, which is electrically connected to the power supply 21, the switch 26, the detection circuit 24, and the battery module 23, and can convert the input voltage Vin into a DC output voltage Vout. The battery module 23 is charged and the power required for the operation of the load 3 is provided, and one end of the detecting circuit 24 is electrically connected to the switch 26 and the power conversion circuit 22, and the other end is electrically connected to the control circuit 25. In the present embodiment, the detection circuit 24 can be, but is not limited to, a voltage dividing circuit. In addition, one end of the switching switch 26 of the present invention is provided. Electrically connected to the power supply 21, the other end is electrically connected to a resistor R, and the other end of the resistor R is electrically connected to a ground terminal G; wherein the resistor R of the present case consumes power, which can be the on-resistance of the semiconductor, Cement resistance or other auxiliary load as a dummy load.
請再參閱第2圖及第3圖，其中第3圖係為第2圖所示之輸入電壓、電池電壓以及切換開關作動之波形圖，本案之控制電路25係與偵測電路24及切換開關26電性連接，且接收一預設參考電壓Vref，其中該預設參考電壓Vref設定條件為：當電池模組23開始吸收極少電流或切換開關26截止且負載3消耗極少電流或異常斷電時， 該預設參考電壓Vref為以不燒毀電源轉換電路22及負載3電路下，可接受之最高輸入電壓。控制電路25內部具有一比較器251及一脈衝信號產生器252，該脈衝信號產生器252可為一脈衝寬度產生電路，且與比較器251及切換開關26電性連接，至於，比較器251則與偵測電路24及脈衝信號產生器252電性連接，且可為但不限為一遲滯電壓比較器。 Please refer to FIG. 2 and FIG. 3 again. FIG. 3 is a waveform diagram of the input voltage, the battery voltage and the switching switch actuation shown in FIG. 2. The control circuit 25 of the present invention is connected to the detection circuit 24 and the switch. 26 electrically connected, and receiving a preset reference voltage Vref, wherein the preset reference voltage Vref is set to be when the battery module 23 starts to absorb very little current or the switch 26 is turned off and the load 3 consumes very little current or abnormal power failure , The preset reference voltage Vref is the highest acceptable input voltage under the power conversion circuit 22 and the load 3 circuit. The control circuit 25 has a comparator 251 and a pulse signal generator 252. The pulse signal generator 252 can be a pulse width generating circuit and is electrically connected to the comparator 251 and the switch 26. As a result, the comparator 251 is connected. The detection circuit 24 and the pulse signal generator 252 are electrically connected, and may be, but are not limited to, a hysteresis voltage comparator.
比較器251係接收偵測電路24所測得之輸入電壓Vin，並將輸入電壓Vin與一預設參考電壓Vref進行比較，當比較結果為該輸入電壓Vin係大於預設參考電壓Vref時，則產生一控制信號Sc至脈衝信號產生器252，使得脈衝信號產生器252因應該控制信號Sc的觸發而產生一脈衝信號Sp，其中該脈衝信號Sp係具有脈衝時間T，以控制該切換開關26於該脈衝時間T內導通(請參閱第3圖)，以藉由該脈衝信號Sp之脈衝時間T來延長該切換開關26之導通時間，並使供電電源21所提供之輸入電流經由切換開關26及電阻R傳送至接地端G。 The comparator 251 receives the input voltage Vin measured by the detecting circuit 24, and compares the input voltage Vin with a predetermined reference voltage Vref. When the comparison result is that the input voltage Vin is greater than the preset reference voltage Vref, then the comparator 251 receives the input voltage Vin. Generating a control signal Sc to the pulse signal generator 252, so that the pulse signal generator 252 generates a pulse signal Sp according to the triggering of the control signal Sc, wherein the pulse signal Sp has a pulse time T to control the switch 26 Turning on during the pulse time T (refer to FIG. 3), the on-time of the switch 26 is extended by the pulse time T of the pulse signal Sp, and the input current provided by the power supply 21 is passed through the switch 26 and The resistor R is transmitted to the ground terminal G.
請再參閱第2及3圖，於該脈衝時間T的區間內，切換開關26係導通以使供電電源21所提供之輸入電流經由電阻R傳送至接地端G，因此偵測電路24係偵測到輸入電壓Vin為接近零電壓(即電阻R之電壓)，由於輸入電壓Vin小於負載3運作所需之電壓，因此負載3運作所需之電源則改由電池模組23所提供，而電池模組23之電池電壓Vb亦將自然往下降低，直到脈衝時間T結束後，脈衝信號Sp將控制切換開關26截止，以使供電電源21所提供之輸入電壓Vin經由電源轉換電路22轉換並對電池模組23進行充電並提供負載3所需之電源，而這期間偵測電路24係持續偵測輸入電壓Vin並傳 送至比較器251進行比對，直到比較器251比對的結果為輸入電壓Vin係大於預設參考電壓Vref時，比較器251才會產生控制信號Sc至脈衝信號產生器252，使得脈衝信號產生器252因應該控制信號Sc的觸發而產生一脈衝信號Sp，以控制該切換開關26於該脈衝時間T內導通，使供電電源21所提供之輸入電流經由切換開關26及電阻R傳送至接地端G，藉由上述的方式不斷重複進行運作以提供穩定電源對電池模組23進行充電並提供負載3所需之電源，並於輸入電壓Vin大於預設參考電壓Vref時，將切換開關26導通以將供電電源21所提供之輸入電流經由電阻R輸入接地端G，可避免供電電源21進入開路高壓狀態，以保護電源轉換電路22及負載3內部之電路，且藉由脈衝信號Sp的控制使切換開關26的導通時間延長，可立即降低輸入電壓Vin、消耗電源電力、平衡系統能量；在脈衝時間T過後，亦能迅速恢復正常供電及監測；一般脈衝數量會隨電池模組23吸收極少電流或切換開關截止時且負載3消耗極少電流或異常斷電之時間長短而相對增減。 Please refer to FIG. 2 and FIG. 3 again. During the interval of the pulse time T, the switch 26 is turned on to enable the input current provided by the power supply 21 to be transmitted to the ground G via the resistor R, so the detection circuit 24 detects When the input voltage Vin is close to zero voltage (ie, the voltage of the resistor R), since the input voltage Vin is smaller than the voltage required for the operation of the load 3, the power required for the operation of the load 3 is changed by the battery module 23, and the battery module is provided. The battery voltage Vb of the group 23 will also naturally decrease downward until the pulse time T ends, the pulse signal Sp will control the switching switch 26 to be turned off, so that the input voltage Vin supplied from the power supply 21 is converted via the power conversion circuit 22 and the battery The module 23 charges and supplies the power required by the load 3, and during this time, the detecting circuit 24 continuously detects the input voltage Vin and transmits The comparator 251 sends an analog signal to the comparator 251 for comparison, until the result of the comparison of the comparator 251 is that the input voltage Vin is greater than the preset reference voltage Vref, the comparator 251 generates the control signal Sc to the pulse signal generator 252, so that the pulse signal is generated. The 252 generates a pulse signal Sp according to the trigger of the control signal Sc to control the switch 26 to be turned on during the pulse time T, so that the input current provided by the power supply 21 is transmitted to the ground via the switch 26 and the resistor R. G, by repeatedly repeating the operation in the above manner to provide a stable power supply for charging the battery module 23 and providing the power required for the load 3, and turning on the switch 26 when the input voltage Vin is greater than the preset reference voltage Vref The input current provided by the power supply 21 is input to the ground terminal G via the resistor R, so that the power supply 21 can be prevented from entering an open high voltage state to protect the circuit of the power conversion circuit 22 and the load 3, and the switching is performed by the control of the pulse signal Sp. The on-time of the switch 26 is extended, and the input voltage Vin, the power consumption, and the system energy can be immediately reduced; after the pulse time T, Normal speed and power monitoring; general with the number of pulses of the battery module 23 will absorb little current or switch current and the load 3 consumes very little power failure or abnormal decrease of the relative length of the switch is turned off.
綜上所述，本案之具有脈衝信號產生器之電源供應系統係藉由比較器將供電電源所提供之輸入電壓與一預設參考電壓進行比較，且於該輸入電壓大於該預設參考電壓時，產生一控制信號至該脈衝信號產生器，使該脈衝信號產生器因應該控制信號產生一脈衝信號，以控制該切換開關導通，並以脈衝信號之一脈衝時間延長該切換開關之導通時間，使該供電電源所輸出之該輸入電壓經由該切換開關傳送至該接地端，可避免供電電源進入開路高壓狀態，以保護負載內部之電路，且藉由脈衝信號的控制使切換開關的導通時間延長，可消耗電源電力及平衡系統能量；在脈衝時間過 後，亦能迅速恢復供電及監測。 In summary, the power supply system with the pulse signal generator of the present invention compares the input voltage provided by the power supply with a predetermined reference voltage by the comparator, and when the input voltage is greater than the preset reference voltage Generating a control signal to the pulse signal generator, causing the pulse signal generator to generate a pulse signal according to the control signal to control the switching switch to be turned on, and to extend the on-time of the switching switch by one pulse time. The input voltage outputted by the power supply is transmitted to the ground through the switch, so that the power supply can be prevented from entering an open high voltage state to protect the internal circuit of the load, and the conduction time of the switch is extended by the control of the pulse signal. Can consume power and balance system energy; After that, power supply and monitoring can be quickly restored.
本案得由熟知此技術之人士任施匠思而為諸般修飾，然皆不脫如附申請專利範圍所欲保護者。 This case has been modified by people who are familiar with the technology, but it is not intended to be protected by the scope of the patent application.
2‧‧‧電源供應系統 2‧‧‧Power supply system
21‧‧‧供電電源 21‧‧‧Power supply
22‧‧‧電源轉換電路 22‧‧‧Power conversion circuit
23‧‧‧電池模組 23‧‧‧Battery module
24‧‧‧偵測電路 24‧‧‧Detection circuit
25‧‧‧控制電路 25‧‧‧Control circuit
251‧‧‧比較器 251‧‧‧ Comparator
252‧‧‧脈衝信號產生器 252‧‧‧ pulse signal generator
26‧‧‧切換開關 26‧‧‧Toggle switch
3‧‧‧負載 3‧‧‧load
Vin‧‧‧輸入電壓 Vin‧‧‧Input voltage
Vout‧‧‧輸出電壓 Vout‧‧‧ output voltage
Vb‧‧‧電池電壓 Vb‧‧‧ battery voltage
Sc‧‧‧控制信號 Sc‧‧‧ control signal
Sp‧‧‧脈衝信號 Sp‧‧‧ pulse signal
Vref‧‧‧預設參考電壓 Vref‧‧‧Preset reference voltage
R‧‧‧電阻 R‧‧‧resistance
G‧‧‧接地端 G‧‧‧ Grounding terminal
Claims (7)
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| TW102103595A TWI482393B (en) | 2013-01-30 | 2013-01-30 | Power supply system having pulse signal generator |
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| TW102103595A TWI482393B (en) | 2013-01-30 | 2013-01-30 | Power supply system having pulse signal generator |
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| TW201431246A TW201431246A (en) | 2014-08-01 |
| TWI482393B true TWI482393B (en) | 2015-04-21 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW571482B (en) * | 2001-08-03 | 2004-01-11 | Linear Techn Inc | Circuits and techniques for charging capacitive loads |
| TW200642227A (en) * | 2005-05-18 | 2006-12-01 | Ite Tech Inc | Power supply conversion circuit and method thereof, and a system incorporating the same |
| US20100102773A1 (en) * | 2008-10-27 | 2010-04-29 | Laszlo Lipcsei | Circuits and methods for power conversion |
| TWM436273U (en) * | 2012-02-20 | 2012-08-21 | da-hua Xie | Solar energy storage device |
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2013
- 2013-01-30 TW TW102103595A patent/TWI482393B/en not_active IP Right Cessation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW571482B (en) * | 2001-08-03 | 2004-01-11 | Linear Techn Inc | Circuits and techniques for charging capacitive loads |
| TW200642227A (en) * | 2005-05-18 | 2006-12-01 | Ite Tech Inc | Power supply conversion circuit and method thereof, and a system incorporating the same |
| US20100102773A1 (en) * | 2008-10-27 | 2010-04-29 | Laszlo Lipcsei | Circuits and methods for power conversion |
| TWM436273U (en) * | 2012-02-20 | 2012-08-21 | da-hua Xie | Solar energy storage device |
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