TWI494731B - Power supply apparatus with reducing voltage overshooting - Google Patents
Power supply apparatus with reducing voltage overshooting Download PDFInfo
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Description
本發明係有關於一種電源供應裝置，特別是一種減少電壓超出之電源供應裝置。 The present invention relates to a power supply device, and more particularly to a power supply device that reduces voltage excess.
電源供應裝置是一種非常常見的電子裝置；當電源供應裝置的輸出電壓因為動態負載而降低時，電源供應裝置的輸出電壓會被增加直到電源供應裝置的輸出電壓等於電源供應裝置的標準輸出電壓。 The power supply device is a very common electronic device; when the output voltage of the power supply device is lowered due to the dynamic load, the output voltage of the power supply device is increased until the output voltage of the power supply device is equal to the standard output voltage of the power supply device.
然而，當電源供應裝置的輸出電壓被增加時，上述電源供應裝置的輸出電壓會超過電源供應裝置的標準輸出電壓，此稱為電壓超出(voltage overshooting)，如第三圖的曲線A所示。 However, when the output voltage of the power supply device is increased, the output voltage of the above power supply device may exceed the standard output voltage of the power supply device, which is referred to as voltage overshooting, as shown by curve A of the third figure.
電源供應裝置及電子裝置容易因為電壓超出而遭受損害；因此，減少電壓超出對電源供應裝置及電子裝置來說都是非常重要的。 Power supply devices and electronic devices are susceptible to damage due to voltage excess; therefore, reducing voltage excess is very important for power supply devices and electronic devices.
為改善上述習知技術之缺點，本發明之目的在於提供一種減少電壓超出之電源供應裝置。 In order to improve the above disadvantages of the prior art, it is an object of the present invention to provide a power supply device that reduces voltage excess.
為改善上述習知技術之缺點，本發明之又一目的在於提供一種減 少電壓超出之電源供應裝置。 In order to improve the above disadvantages of the prior art, another object of the present invention is to provide a reduction. A power supply that has less voltage than it is.
為達成本發明之上述目的，本發明之減少電壓超出之電源供應裝置係應用於一動態負載，該減少電壓超出之電源供應裝置包含：一電壓產生單元；一電壓增益控制單元，該電壓增益控制單元電性連接至該電壓產生單元；一電壓輸出端點，該電壓輸出端點電性連接至該電壓產生單元及該動態負載；及一電壓偵測單元，該電壓偵測單元電性連接至該電壓增益控制單元及該電壓輸出端點。其中該電壓產生單元係用以產生一標準輸出電壓至該電壓輸出端點；該電壓偵測單元係用以偵測該電壓輸出端點的電壓並通知該電壓增益控制單元；當該電壓輸出端點的電壓因為該動態負載而降低時，該電壓增益控制單元控制該電壓產生單元以增加該電壓產生單元所產生的電壓的增益，並使該電壓產生單元所產生的電壓低於該標準輸出電壓；接著，該電壓增益控制單元控制該電壓產生單元以減少該電壓產生單元所產生的電壓的增益，並使該電壓產生單元所產生的電壓等於該標準輸出電壓。 In order to achieve the above object of the present invention, the power supply device for reducing voltage exceeding the present invention is applied to a dynamic load, and the power supply device for reducing the voltage exceeds: a voltage generating unit; a voltage gain control unit, the voltage gain control The voltage detecting unit is electrically connected to the voltage generating unit; the voltage output terminal is electrically connected to the voltage generating unit and the dynamic load; and a voltage detecting unit electrically connected to the voltage detecting unit The voltage gain control unit and the voltage output terminal. The voltage generating unit is configured to generate a standard output voltage to the voltage output end point; the voltage detecting unit is configured to detect the voltage of the voltage output end point and notify the voltage gain control unit; when the voltage output end When the voltage of the point is lowered due to the dynamic load, the voltage gain control unit controls the voltage generating unit to increase the gain of the voltage generated by the voltage generating unit, and causes the voltage generated by the voltage generating unit to be lower than the standard output voltage. Then, the voltage gain control unit controls the voltage generating unit to reduce the gain of the voltage generated by the voltage generating unit, and causes the voltage generated by the voltage generating unit to be equal to the standard output voltage.
再者，如上所述之減少電壓超出之電源供應裝置，其中該電壓產生單元可為例如但不限定為一電壓產生電路。 Furthermore, as described above, the power supply device for reducing the voltage is exceeded, wherein the voltage generating unit may be, for example but not limited to, a voltage generating circuit.
再者，如上所述之減少電壓超出之電源供應裝置，其中該電壓增益控制單元可為例如但不限定為一電壓增益控制電路。 Furthermore, the power supply device for reducing the voltage is exceeded as described above, wherein the voltage gain control unit may be, for example but not limited to, a voltage gain control circuit.
再者，如上所述之減少電壓超出之電源供應裝置，其中該電壓增益控制單元可為例如但不限定為一微控制器或一微處理器。 Furthermore, the power supply device for reducing the voltage is exceeded as described above, wherein the voltage gain control unit can be, for example but not limited to, a microcontroller or a microprocessor.
再者，如上所述之減少電壓超出之電源供應裝置，其中該電壓偵測單元可為例如但不限定為一電壓偵測電路。 Furthermore, as described above, the power supply device for reducing the voltage is exceeded, wherein the voltage detecting unit can be, for example but not limited to, a voltage detecting circuit.
為達成本發明之上述又一目的，本發明之減少電壓超出之電源供應裝置係應用於一動態負載，該減少電壓超出之電源供應裝置包含：一電壓產生單元；一電壓頻寬控制單元，該電壓頻寬控制單元電性連接至該電壓產生單元；一電壓輸出端點，該電壓輸出端點電性連接至該電壓產生單元及該動態負載；及一電壓偵測單元，該電壓偵測單元電性連接至該電壓頻寬控制單元及該電壓輸出端點。其中該電壓產生單元係用以產生一標準輸出電壓至該電壓輸出端點；該電壓偵測單元係用以偵測該電壓輸出端點的電壓並通知該電壓頻寬控制單元；當該電壓輸出端點的電壓因為該動態負載而降低時，該電壓頻寬控制單元控制該電壓產生單元以減少該電壓產生單元所產生的電壓的頻寬，並使該電壓產生單元所產生的電壓低於該標準輸出電壓；接著，該電壓頻寬控制單元控制該電壓產生單元以增加該電壓產生單元所產生的電壓的頻寬，並使該電壓產生單元所產生的電壓等於該標準輸出電壓。 In order to achieve the above-mentioned still further object of the present invention, the power supply device for reducing voltage exceeding is applied to a dynamic load, and the power supply device for reducing the voltage exceeds: a voltage generating unit; a voltage bandwidth control unit, The voltage bandwidth control unit is electrically connected to the voltage generating unit; a voltage output terminal, the voltage output terminal is electrically connected to the voltage generating unit and the dynamic load; and a voltage detecting unit, the voltage detecting unit Electrically connected to the voltage bandwidth control unit and the voltage output terminal. The voltage generating unit is configured to generate a standard output voltage to the voltage output end point; the voltage detecting unit is configured to detect the voltage of the voltage output end point and notify the voltage bandwidth control unit; when the voltage output When the voltage of the terminal is lowered due to the dynamic load, the voltage bandwidth control unit controls the voltage generating unit to reduce the bandwidth of the voltage generated by the voltage generating unit, and causes the voltage generated by the voltage generating unit to be lower than the voltage The standard output voltage; then, the voltage bandwidth control unit controls the voltage generating unit to increase the bandwidth of the voltage generated by the voltage generating unit, and causes the voltage generated by the voltage generating unit to be equal to the standard output voltage.
再者，如上所述之減少電壓超出之電源供應裝置，其中該電壓產生單元可為例如但不限定為一電壓產生電路。 Furthermore, as described above, the power supply device for reducing the voltage is exceeded, wherein the voltage generating unit may be, for example but not limited to, a voltage generating circuit.
再者，如上所述之減少電壓超出之電源供應裝置，其中該電壓頻寬控制單元可為例如但不限定為一電壓頻寬控制電路。 Furthermore, the power supply device for reducing the voltage is exceeded as described above, wherein the voltage bandwidth control unit can be, for example but not limited to, a voltage bandwidth control circuit.
再者，如上所述之減少電壓超出之電源供應裝置，其中該電壓頻寬控制單元可為例如但不限定為一微控制器或一微處理器。 Furthermore, the power supply device for reducing the voltage is exceeded as described above, wherein the voltage bandwidth control unit can be, for example but not limited to, a microcontroller or a microprocessor.
再者，如上所述之減少電壓超出之電源供應裝置，其中該電壓偵測單元可為例如但不限定為一電壓偵測電路。 Furthermore, as described above, the power supply device for reducing the voltage is exceeded, wherein the voltage detecting unit can be, for example but not limited to, a voltage detecting circuit.
10‧‧‧減少電壓超出之電源供應裝置 10‧‧‧Power supply device with reduced voltage exceeding
20‧‧‧動態負載 20‧‧‧dynamic load
102‧‧‧電壓產生單元 102‧‧‧Voltage generating unit
104‧‧‧電壓增益控制單元 104‧‧‧Voltage Gain Control Unit
106‧‧‧電壓輸出端點 106‧‧‧Voltage output endpoint
108‧‧‧電壓偵測單元 108‧‧‧Voltage detection unit
110‧‧‧標準輸出電壓 110‧‧‧Standard output voltage
112‧‧‧電壓頻寬控制單元 112‧‧‧Voltage Bandwidth Control Unit
第一圖為本發明之減少電壓超出之電源供應裝置之第一實施例方塊圖。 The first figure is a block diagram of a first embodiment of a power supply device for reducing voltage excess of the present invention.
第二圖為本發明之減少電壓超出之電源供應裝置之第二實施例方塊圖。 The second figure is a block diagram of a second embodiment of a power supply device for reducing voltage excess of the present invention.
第三圖為習知技術對照本發明之波形圖。 The third figure is a waveform diagram of a conventional technique against the present invention.
請參考第一圖，其係為本發明之減少電壓超出之電源供應裝置之第一實施例方塊圖。一減少電壓超出之電源供應裝置10係應用於一動態負載20；該減少電壓超出之電源供應裝置10包含一電壓產生單元102、一電壓增益控制單元104、一電壓輸出端點106及一電壓偵測單元108。 Please refer to the first figure, which is a block diagram of a first embodiment of a power supply device for reducing voltage excess according to the present invention. A power supply device 10 for reducing voltage excess is applied to a dynamic load 20; the power supply device 10 including the voltage output device 10 includes a voltage generating unit 102, a voltage gain control unit 104, a voltage output terminal 106, and a voltage detector. Measurement unit 108.
該電壓增益控制單元104電性連接至該電壓產生單元102；該電壓輸出端點106電性連接至該電壓產生單元102及該動態負載20；該電壓偵測單元108電性連接至該電壓增益控制單元104及該電壓輸出端點106。 The voltage gain control unit 104 is electrically connected to the voltage generating unit 102; the voltage output terminal 106 is electrically connected to the voltage generating unit 102 and the dynamic load 20; the voltage detecting unit 108 is electrically connected to the voltage gain Control unit 104 and the voltage output terminal 106.
該電壓產生單元102係用以產生一標準輸出電壓110(例如12伏特)至該電壓輸出端點106；該電壓偵測單元108係用以偵測該電壓輸出端點106的電壓並通知該電壓增益控制單元104。 The voltage generating unit 102 is configured to generate a standard output voltage 110 (eg, 12 volts) to the voltage output terminal 106. The voltage detecting unit 108 is configured to detect the voltage of the voltage output terminal 106 and notify the voltage. Gain control unit 104.
當該電壓輸出端點106的電壓因為該動態負載20而降低時，該電壓增益控制單元104控制該電壓產生單元102以增加該電壓產生單元102所產生的電壓的增益，並使該電壓產生單元102所產生的電壓低於該標準輸出電壓110。 When the voltage of the voltage output terminal 106 decreases due to the dynamic load 20, the voltage gain control unit 104 controls the voltage generating unit 102 to increase the gain of the voltage generated by the voltage generating unit 102, and causes the voltage generating unit The voltage generated by 102 is lower than the standard output voltage 110.
接著，該電壓增益控制單元104控制該電壓產生單元102以減少該電壓產生單元102所產生的電壓的增益，並使該電壓產生單元102所產生的電壓等於該標準輸出電壓。 Next, the voltage gain control unit 104 controls the voltage generating unit 102 to reduce the gain of the voltage generated by the voltage generating unit 102, and causes the voltage generated by the voltage generating unit 102 to be equal to the standard output voltage.
請參考第三圖，其係為習知技術對照本發明之波形圖。曲線A顯示為習知技術；曲線B顯示為本發明。 Please refer to the third figure, which is a waveform diagram of a conventional technique against the present invention. Curve A is shown as a conventional technique; curve B is shown as the present invention.
如曲線A所示，當電源供應裝置的輸出電壓因為動態負載而降低時，電源供應裝置的輸出電壓會被增加直到電源供應裝置的輸出電壓等於電源供應裝置的標準輸出電壓。然而，當電源供應裝置的輸出電壓被增加時，上述電源供應裝置的輸出電壓會超過電源供應裝置的標準輸出電壓，此稱為電壓超出(voltage overshooting)。 As shown by the curve A, when the output voltage of the power supply device is lowered due to the dynamic load, the output voltage of the power supply device is increased until the output voltage of the power supply device is equal to the standard output voltage of the power supply device. However, when the output voltage of the power supply device is increased, the output voltage of the above power supply device may exceed the standard output voltage of the power supply device, which is referred to as voltage overshooting.
如曲線B所示，當電源供應裝置的輸出電壓因為動態負載而降低時，電源供應裝置的輸出電壓會被先急速地增加(增益會被急速地增加)；接著，電源供應裝置的輸出電壓會被緩慢地增加(增益會被緩慢地增加)直到電源供應裝置的輸出電壓等於標準輸出電壓；因此，電源供應裝置的輸出電壓就不會超過標準輸出電壓，沒有電壓超出的現象發生。 As shown by the curve B, when the output voltage of the power supply device is lowered due to the dynamic load, the output voltage of the power supply device is rapidly increased first (the gain is rapidly increased); then, the output voltage of the power supply device is It is slowly increased (the gain is slowly increased) until the output voltage of the power supply device is equal to the standard output voltage; therefore, the output voltage of the power supply device does not exceed the standard output voltage, and no voltage is exceeded.
該電壓產生單元102可為例如但不限定為一電壓產生電路；該電壓增益控制單元104可為例如但不限定為一電壓增益控制電路、一微控制器或一微處理器；該電壓偵測單元108可為例如但不限定為一電壓偵測電路。 The voltage generating unit 102 can be, for example but not limited to, a voltage generating circuit; the voltage gain control unit 104 can be, for example but not limited to, a voltage gain control circuit, a microcontroller or a microprocessor; Unit 108 can be, for example but not limited to, a voltage detection circuit.
請參考第二圖，其係為本發明之減少電壓超出之電源供應裝置之第二實施例方塊圖。一減少電壓超出之電源供應裝置10係應用於 一動態負載20；該減少電壓超出之電源供應裝置10包含一電壓產生單元102、一電壓頻寬控制單元112、一電壓輸出端點106及一電壓偵測單元108。 Please refer to the second figure, which is a block diagram of a second embodiment of the power supply device for reducing voltage excess of the present invention. A power supply device 10 that reduces voltage excess is applied The power supply device 10 includes a voltage generating unit 102, a voltage bandwidth control unit 112, a voltage output terminal 106, and a voltage detecting unit 108.
該電壓頻寬控制單元112電性連接至該電壓產生單元102；該電壓輸出端點106電性連接至該電壓產生單元102及該動態負載20；該電壓偵測單元108電性連接至該電壓頻寬控制單元112及該電壓輸出端點106。 The voltage bandwidth control unit 112 is electrically connected to the voltage generating unit 102; the voltage output terminal 106 is electrically connected to the voltage generating unit 102 and the dynamic load 20; the voltage detecting unit 108 is electrically connected to the voltage The bandwidth control unit 112 and the voltage output terminal 106.
該電壓產生單元102係用以產生一標準輸出電壓110(例如12伏特)至該電壓輸出端點106；該電壓偵測單元108係用以偵測該電壓輸出端點106的電壓並通知該電壓頻寬控制單元112。 The voltage generating unit 102 is configured to generate a standard output voltage 110 (eg, 12 volts) to the voltage output terminal 106. The voltage detecting unit 108 is configured to detect the voltage of the voltage output terminal 106 and notify the voltage. The bandwidth control unit 112.
當該電壓輸出端點106的電壓因為該動態負載20而降低時，該電壓頻寬控制單元112控制該電壓產生單元102以減少該電壓產生單元102所產生的電壓的頻寬，並使該電壓產生單元102所產生的電壓低於該標準輸出電壓。 When the voltage of the voltage output terminal 106 decreases due to the dynamic load 20, the voltage bandwidth control unit 112 controls the voltage generating unit 102 to reduce the bandwidth of the voltage generated by the voltage generating unit 102 and make the voltage The voltage generated by the generating unit 102 is lower than the standard output voltage.
接著，該電壓頻寬控制單元112控制該電壓產生單元102以增加該電壓產生單元102所產生的電壓的頻寬，並使該電壓產生單元102所產生的電壓等於該標準輸出電壓110。 Next, the voltage bandwidth control unit 112 controls the voltage generating unit 102 to increase the bandwidth of the voltage generated by the voltage generating unit 102, and causes the voltage generated by the voltage generating unit 102 to be equal to the standard output voltage 110.
請參考第三圖，其係為習知技術對照本發明之波形圖。曲線A顯示為習知技術；曲線B顯示為本發明。 Please refer to the third figure, which is a waveform diagram of a conventional technique against the present invention. Curve A is shown as a conventional technique; curve B is shown as the present invention.
如曲線A所示，當電源供應裝置的輸出電壓因為動態負載而降低時，電源供應裝置的輸出電壓會被增加直到電源供應裝置的輸出電壓等於電源供應裝置的標準輸出電壓。然而，當電源供應裝置的輸出電壓被增加時，上述電源供應裝置的輸出電壓會超過電源 供應裝置的標準輸出電壓，此稱為電壓超出(voltage overshooting)。 As shown by the curve A, when the output voltage of the power supply device is lowered due to the dynamic load, the output voltage of the power supply device is increased until the output voltage of the power supply device is equal to the standard output voltage of the power supply device. However, when the output voltage of the power supply device is increased, the output voltage of the above power supply device exceeds the power supply. The standard output voltage of the supply device, which is called voltage overshooting.
當該電壓頻寬控制單元112控制的電壓頻寬越小，輸出電壓爬升斜率越陡；當該電壓頻寬控制單元112控制的電壓頻寬越大，輸出電壓爬升斜率越平緩。 When the voltage bandwidth controlled by the voltage bandwidth control unit 112 is smaller, the output voltage climb slope is steeper; when the voltage bandwidth controlled by the voltage bandwidth control unit 112 is larger, the output voltage climb slope is more gentle.
如曲線B所示，當電源供應裝置的輸出電壓因為動態負載而降低時，電源供應裝置的輸出電壓會被先急速地增加(頻寬較小)；接著，電源供應裝置的輸出電壓會被緩慢地增加(頻寬較大)直到電源供應裝置的輸出電壓等於標準輸出電壓；因此，電源供應裝置的輸出電壓就不會超過標準輸出電壓，沒有電壓超出的現象發生。 As shown by curve B, when the output voltage of the power supply device is lowered due to the dynamic load, the output voltage of the power supply device is rapidly increased first (the bandwidth is small); then, the output voltage of the power supply device is slowed down. The ground is increased (the bandwidth is large) until the output voltage of the power supply device is equal to the standard output voltage; therefore, the output voltage of the power supply device does not exceed the standard output voltage, and no voltage is exceeded.
該電壓產生單元102可為例如但不限定為一電壓產生電路；該電壓頻寬控制單元112可為例如但不限定為一電壓頻寬控制電路、一微控制器或一微處理器；該電壓偵測單元108可為例如但不限定為一電壓偵測電路。 The voltage generating unit 102 can be, for example but not limited to, a voltage generating circuit; the voltage bandwidth control unit 112 can be, for example but not limited to, a voltage bandwidth control circuit, a microcontroller or a microprocessor; The detecting unit 108 can be, for example but not limited to, a voltage detecting circuit.
然以上所述者，僅為本發明之較佳實施例，當不能限定本發明實施之範圍，即凡依本發明申請專利範圍所作之均等變化與修飾等，皆應仍屬本發明之專利涵蓋範圍意圖保護之範疇。綜上所述，當知本發明已具有產業利用性、新穎性與進步性，又本發明之構造亦未曾見於同類產品及公開使用，完全符合發明專利申請要件，爰依專利法提出申請。 However, the above is only a preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the equivalent changes and modifications made by the scope of the present invention should still be covered by the patent of the present invention. The scope of the scope is intended to protect. In summary, it is known that the present invention has industrial applicability, novelty and advancement, and the structure of the present invention has not been seen in similar products and public use, and fully complies with the requirements of the invention patent application, and is filed according to the patent law.
10‧‧‧減少電壓超出之電源供應裝置 10‧‧‧Power supply device with reduced voltage exceeding
20‧‧‧動態負載 20‧‧‧dynamic load
102‧‧‧電壓產生單元 102‧‧‧Voltage generating unit
104‧‧‧電壓增益控制單元 104‧‧‧Voltage Gain Control Unit
106‧‧‧電壓輸出端點 106‧‧‧Voltage output endpoint
108‧‧‧電壓偵測單元 108‧‧‧Voltage detection unit
110‧‧‧標準輸出電壓 110‧‧‧Standard output voltage
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200937155A (en) * | 2008-02-22 | 2009-09-01 | Anwell Semiconductor Corp | Control circuit architecture for dynamically adjusting switching frequency of constant voltage regulator |
| TW201240293A (en) * | 2011-03-25 | 2012-10-01 | Chang-Hsing Chen | Pulse width modulation synchronous rectification power supply device |
| TWM449407U (en) * | 2012-10-25 | 2013-03-21 | Chicony Power Tech Co Ltd | Power converting device |
| TWM451735U (en) * | 2012-10-31 | 2013-04-21 | Asian Power Devices Inc | Overload protection energy-saving circuit |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200937155A (en) * | 2008-02-22 | 2009-09-01 | Anwell Semiconductor Corp | Control circuit architecture for dynamically adjusting switching frequency of constant voltage regulator |
| TW201240293A (en) * | 2011-03-25 | 2012-10-01 | Chang-Hsing Chen | Pulse width modulation synchronous rectification power supply device |
| TWM449407U (en) * | 2012-10-25 | 2013-03-21 | Chicony Power Tech Co Ltd | Power converting device |
| TWM451735U (en) * | 2012-10-31 | 2013-04-21 | Asian Power Devices Inc | Overload protection energy-saving circuit |
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