TWI482430B - Switching power supply of pc, notebook, tablets and smart phone applicant by multiple specification capacitors to regulate flat impedance of power supply at listened frequency range - Google Patents
Switching power supply of pc, notebook, tablets and smart phone applicant by multiple specification capacitors to regulate flat impedance of power supply at listened frequency range Download PDFInfo
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Description
本發明係關於一種用於桌上型電腦、筆記型電腦、平板電腦及智慧型手機的電源阻抗調整電路,利用非指定數量之多種不同規格電容來調整在可聽頻率範圍的電源阻抗,擴展裝置內的放大電路全頻段平均頻率響應,裝置使用耳機及音響聆聽音樂用途時,能有高傳真及真實音樂的聆聽效果。 The invention relates to a power supply impedance adjusting circuit for a desktop computer, a notebook computer, a tablet computer and a smart phone, which uses a plurality of different specifications of capacitors to adjust the power supply impedance in the audible frequency range, and the expansion device The internal amplifier circuit has a full-band average frequency response. When the device uses headphones and audio to listen to music, it can have high-fax and real-music listening effects.
桌上型電腦、筆記型電腦、平板電腦及智慧型手機的交換式電源,輸出濾波電容採用單一規格電容或多個少數規電容,如圖一。 Switching power supply for desktop computers, notebook computers, tablet computers and smart phones. The output filter capacitors use a single specification capacitor or a plurality of minority capacitors, as shown in Figure 1.
因為濾波電容的配置採用單一規格電容或多個少數規格電容,電源阻抗在可聽範圍頻率內不平均,造成桌上型、筆記型、平板電腦及智慧型手機在使用耳機或連接音響設備聆聽音樂時,裝置內放大電路輸出給耳機或音響系統的頻率響應在可聽範圍頻率內,有部份頻段有衰減狀況以致影響聆聽音樂的表現。如圖二。 Because the filter capacitor is configured with a single capacitor or a few capacitors, the impedance of the power supply is not even across the audible range, causing desktops, notebooks, tablets, and smartphones to listen to music using headphones or connected audio equipment. At the time, the frequency response of the amplifier circuit output to the earphone or the sound system is within the audible range frequency, and some of the frequency bands have attenuation conditions that affect the performance of listening to music. As shown in Figure 2.
本發明的主要目的在提供一種用於桌上型電腦、筆記型電腦、平板電腦及智慧型手機的電源阻抗調整電路,主要是在現有桌上型、筆記型、平板電腦及智慧型手機的交 換式電源供應器後面,增加多種不同規格電容的電源阻抗調整電路,來調整在可聽頻率範圍的電源阻抗,再供電給桌上型電腦、筆記型電腦、平板電腦及智慧型手機。 The main purpose of the present invention is to provide a power impedance adjustment circuit for a desktop computer, a notebook computer, a tablet computer, and a smart phone, mainly in the existing desktop, notebook, tablet, and smart phones. Behind the power supply, a variety of power supply impedance adjustment circuits of different capacitances are added to adjust the impedance of the power supply in the audible frequency range, and then to the desktop computer, notebook computer, tablet computer and smart phone.
為達成前述目的採取的一主要技術手段是使前述用於桌上型電腦、筆記型電腦、平板電腦及智慧型手機的電源阻抗調整電路包含:一直流電源迴路,具有一電壓正極及一電壓負極,該電壓正極和電壓負極的兩端分別構成一直流電源輸入端及一直流電源輸出端;一個或複數個不同規格電容,包含一第一端與一第二端,該第一端耦接至該電壓正極,該第二端耦接至該電壓負極;一二極體,和該電壓正極串接,該二極體具有一陽極及一陰極,該陽極連接該直流電源輸入端,該陰極連接該直流電源輸出端。 A main technical means for achieving the foregoing objectives is to enable the aforementioned power impedance adjustment circuit for a desktop computer, a notebook computer, a tablet computer, and a smart phone to include a DC power supply circuit having a positive voltage and a negative voltage. The two ends of the voltage positive pole and the voltage negative pole respectively constitute a DC power input end and a DC power output end; one or a plurality of capacitors of different specifications, including a first end and a second end, the first end is coupled to The anode of the voltage is coupled to the negative pole of the voltage; a diode is connected in series with the positive pole of the voltage, the diode has an anode and a cathode, and the anode is connected to the input end of the DC power source, and the cathode is connected The DC power output.
為達成前述目的採取的又一主要技術手段是使前述用於桌上型電腦、筆記型電腦、平板電腦及智慧型手機的電源阻抗調整電路包含:一直流電源迴路,具有一電壓正極及一電壓負極,該電壓正極和電壓負極的兩端分別構成一直流電源輸入端及一直流電源輸出端;一個或複數個不同規格電容,包含一第一端與一第二端,該第一端耦接至該電壓正極,該第二端耦接至該電壓負極; 一第一電晶體,其射極、源極與該電壓正極串接;一第二電晶體,其射極連接該電壓正極,其源極連接該第一電晶體的基極;一二極體,其陽極連接該電壓負極,其陰極與第二電晶體的基極連接,同時透過一電阻和該電壓正極連接。 Another main technical means for achieving the foregoing objectives is to enable the aforementioned power impedance adjustment circuit for a desktop computer, a notebook computer, a tablet computer, and a smart phone to include a DC power supply circuit having a positive voltage and a voltage. The negative pole, the two ends of the voltage positive pole and the voltage negative pole respectively constitute a DC power input end and a DC power output end; one or a plurality of capacitors of different specifications, including a first end and a second end, the first end is coupled To the positive pole of the voltage, the second end is coupled to the negative pole of the voltage; a first transistor having an emitter and a source connected in series with the positive electrode; a second transistor having an emitter connected to the positive electrode and a source connected to the base of the first transistor; a diode The anode is connected to the negative electrode of the voltage, and the cathode thereof is connected to the base of the second transistor, and is connected to the positive electrode of the voltage through a resistor.
本發明又一目的在提供一種用於桌上型電腦、筆記型電腦、平板電腦及智慧型手機的交換式電源供應器,其包括有一前述的電源阻抗調整電路。 Still another object of the present invention is to provide an exchange power supply for a desktop computer, a notebook computer, a tablet computer, and a smart phone, comprising the aforementioned power supply impedance adjustment circuit.
利用本發明,當桌上型電腦、筆記型電腦、平板電腦及智慧型手機在使用交換式電源供應器時,使用耳機及音響聆聽音樂,而由本發明的電源阻抗調整電路調整交換式電源供應器的阻抗後,讓裝置內放大電路在可聽範圍頻率內高中低聲音能平均輸出,改善音響聆聽效果(如圖三所示)。 By using the present invention, when a desktop computer, a notebook computer, a tablet computer, and a smart phone use a switched power supply, the earphone and the audio are used to listen to music, and the power supply impedance adjusting circuit of the present invention adjusts the switching power supply. After the impedance, the amplifier circuit in the device can output the high, medium and low sounds in the audible range frequency, and improve the sound listening effect (as shown in Figure 3).
1.筆記型、平板電腦及智慧型手機交換式電源直流電源輸出,以電壓正極接本發明裝置電容正極及電壓負極接本發明裝置電容負極方式,接到本發明電路裝置後,再輸出供電給筆記型、平板電腦及智慧型手機,因本發明電路平均降低可聽頻率範圍的電源阻抗,使得以上裝置內的放大電路輸出耳機及音響時,在可聽範圍頻率內高中低聲音能平均輸出,改善音樂聆聽效果。如圖四。 1. Note type, tablet computer and smart phone exchange type power supply DC power supply output, the positive pole of the device is connected to the capacitor positive pole and the negative voltage of the device of the invention, and the capacitor negative pole of the device of the invention is connected to the circuit device of the invention, and then the power supply is output. Notebook type, tablet computer and smart phone, because the circuit of the invention reduces the power supply impedance of the audible frequency range on average, so that when the amplifying circuit in the above device outputs the earphone and the sound, the sound can be averaged in the high, medium and low sounds in the audible range frequency. Improve music listening. As shown in Figure 4.
2.桌上型電腦交換式電源直流電源輸出12V及5V接 頭,與12V或5V(依放大電路使用電壓)交換式電源濾波電容並聯,以電壓正極接本發明裝置電容正極及電壓負極接本發明裝置電容負極方式,接到本發明電路裝置後,因本發明電路平均降低可聽頻率範圍的電源阻抗,使得以上裝置內的放大電路輸出耳機及音響時,在可聽範圍頻率內高中低聲音能平均輸出,改善音樂聆聽效果。如圖五。 2. Desktop computer switched power supply DC power output 12V and 5V The head is connected in parallel with the switching power supply filter capacitor of 12V or 5V (according to the voltage used by the amplifying circuit), and the positive pole of the device and the negative pole of the voltage of the device are connected to the capacitor negative pole of the device of the invention, and after receiving the circuit device of the invention, The invention circuit reduces the power supply impedance of the audible frequency range on average, so that when the amplifying circuit in the above device outputs the earphone and the sound, the sound can be averaged in the high, medium and low sounds in the audible range frequency, and the music listening effect is improved. As shown in Figure 5.
3.使用電容計算方式:依據負載阻抗及最低可聽頻率20Hz及最高可聽頻率20,000Hz預計衰減db值,分別計算出所需的最大及最小電容規格值,計算公式:db值=10*log(Wout/Win),Win為輸入功率=Vin輸入電壓*Iin輸入電流,Vin輸入電壓=Iin輸入電流*(Rload負載阻抗+Xc電容阻抗),Wout為輸出功率=Vin輸出電壓*Iin輸入電流,Vin輸出電壓=Iin輸入電流*Rload負載阻抗,Xc電容阻抗=1/2 π fc.式中Xc是電容阻抗值,單位為歐姆,f為所加交流頻率C為電容量法拉F。 3. Use the capacitance calculation method: Calculate the required maximum and minimum capacitance specifications according to the load impedance and the minimum audible frequency of 20 Hz and the highest audible frequency of 20,000 Hz. The calculation formula: db value=10*log (Wout/Win), Win is input power=Vin input voltage*Iin input current, Vin input voltage=Iin input current*(Rload load impedance+Xc capacitor impedance), Wout is output power=Vin output voltage*Iin input current, Vin output voltage = Iin input current * Rload load impedance, Xc capacitor impedance = 1/2 π fc. where Xc is the capacitance resistance value in ohms, f is the applied AC frequency C is the capacitance Farad F.
4.再以相同或接近的耐電壓規格電容,從最低可聽頻率所需的截止電容規格值開始,為第1個使用電容規格,第2個以後電容規格以固定倍數除以前1個電容規格值,重覆計算所需的電容規格,每一種規格電容使用數量為1個量,直到最小電容規格而停止,電容規格除以固定倍數越少,電源阻抗在可聽頻率範圍越平直。 4. Use the same or close withstand voltage specification capacitor, starting from the cutoff capacitor specification value required for the lowest audible frequency, the first use capacitor specification, and the second and subsequent capacitor specifications by a fixed multiple of the previous one. Value, repeat the calculation of the required capacitance specifications, the amount of capacitance used in each specification is 1 quantity, and stops until the minimum capacitance specification. The capacitance specification is divided by the fixed multiple, and the power supply impedance is flat in the audible frequency range.
5.再扣除原來已使用在交換式電源並聯的濾波電解電容規格,及扣除音訊播放電子裝置內與電源並聯的電解電容規格。 5. Deduct the specifications of the filter electrolytic capacitor that has been used in parallel with the switching power supply, and deduct the specifications of the electrolytic capacitor connected in parallel with the power supply in the audio playback electronic device.
6.本發明裝置可以內建於交換式電源與濾波電容並聯方式實施。 6. The device of the present invention can be implemented by connecting a switching power supply and a filter capacitor in parallel.
7.本發明裝置整合電阻、電感、二極體及電晶體等組合應用於外接於或內建於交換式電源方式實施。 7. The device of the present invention integrates a combination of a resistor, an inductor, a diode, and a transistor for external or internal built-in switching power supply.
圖一:是現有交換式電源供應器的電路方塊圖。 Figure 1: Circuit block diagram of an existing switched power supply.
圖二:是現有交換式電源供應器的濾波電容電源阻抗及頻率示意圖、及所接設備放大電路輸出聲音訊號與頻率示意圖。 Figure 2: Schematic diagram of the impedance and frequency of the filter capacitor power supply of the existing switched power supply, and the sound signal and frequency of the output circuit of the connected equipment.
圖三:是本發明頻率阻抗調整示意圖、及所接設備放大電路輸出聲音訊號與頻率示意圖。 Figure 3 is a schematic diagram of the frequency impedance adjustment of the present invention and the output signal and frequency of the amplifying circuit of the connected device.
圖四:是本發明與用於桌上型電腦、筆記型電腦、平板電腦及智慧型手機的交換式電源供應器連接的示意圖。 Figure 4: is a schematic diagram of the connection of the present invention to an exchange power supply for desktop computers, notebook computers, tablet computers, and smart phones.
圖五:是本發明用於桌上型電腦、筆記型電腦、平板電腦及智慧型手機的電源阻抗調整電路之第一較佳實施電路圖。 FIG. 5 is a first preferred circuit diagram of the power impedance adjusting circuit for the desktop computer, the notebook computer, the tablet computer and the smart phone of the present invention.
圖六:是本發明用於桌上型電腦、筆記型電腦、平板電腦及智慧型手機的電源阻抗調整電路之第二較佳實施電路圖。 Figure 6 is a second preferred embodiment circuit diagram of the power impedance adjusting circuit for the desktop computer, the notebook computer, the tablet computer and the smart phone of the present invention.
圖七:是本發明用於桌上型電腦、筆記型電腦、平板電腦及智慧型手機的電源阻抗調整電路之第三較佳實施電路圖。 Figure 7 is a third preferred embodiment circuit diagram of the power impedance adjusting circuit for the desktop computer, the notebook computer, the tablet computer and the smart phone of the present invention.
圖八:是本發明用於桌上型電腦、筆記型電腦、平板 電腦及智慧型手機的電源阻抗調整電路之第四較佳實施電路圖。 Figure 8: This is the invention for desktop computers, notebook computers, tablets A fourth preferred embodiment circuit diagram of a power impedance adjustment circuit for a computer and a smart phone.
圖九:是本發明用於桌上型電腦、筆記型電腦、平板電腦及智慧型手機的電源阻抗調整電路之第五較佳實施電路圖。 Figure 9 is a fifth preferred embodiment circuit diagram of the power impedance adjusting circuit for the desktop computer, the notebook computer, the tablet computer and the smart phone of the present invention.
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TWI775068B (en) * | 2020-04-21 | 2022-08-21 | 宏碁股份有限公司 | Power supply device |
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TW201110686A (en) * | 2009-04-13 | 2011-03-16 | Toshiba Kk | Power-supply-noise cancelling circuit and solid-state imaging device |
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US6606012B2 (en) * | 2001-04-03 | 2003-08-12 | Sun Microsystems, Inc. | Wideband bypass capacitor methods for achieving a desired value of electrical impedance between parallel planar conductors of an electrical power distribution structure |
US6819179B2 (en) * | 2003-04-16 | 2004-11-16 | Agency For Science, Technology And Research | Variable gain low noise amplifier |
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