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    • 2. 发明公开
    • POWER SUPPLY MODULATION METHOD AND POWER SUPPLY MODULATOR
    • 法的电力调制和功率调制器
    • EP2688200A4
    • 2015-03-18
    • EP11861029
    • 2011-10-24
    • ZTE CORP
    • WANG LINGUOZHANG BIN
    • H03F1/02H02J1/10H02M3/00H02M3/155H03F1/32
    • H02M3/10H02M3/155H02M7/483H02M2001/0022H02M2001/0045H02M2003/1566H03F1/0227
    • A modulation method and modulator for an envelope tracking power supply. An output of a multi-level switching regulator (202) in the envelope tracking power supply modulator is in parallel connection with an output of a linear regulator (201) via an inductor (203) and supplies power to a load. The modulation method for the envelope tracking power supply includes: generating a first control signal (209) according to the current (211) obtained from inputting a first reference level signal (206); comparing the amplitude of a second reference level signal (2061) obtained according to the first reference level signal (206) with preset amplitudes of at least three levels, and outputting a second control signal (210) according to the comparison result and the first control signal (209); the multi-level switching regulator (202) outputting a level signal of corresponding amplitude according to the second control signal(21 0), and loading the amplitude of the level on the inductor (203) to output an inductive current (208'); and linearly regulating the first reference level signal (206) via a linear regulator (201) to obtain a voltage output (207) to the load. The present disclosure resolves the problem of fixed rate of change of current output by the switching regulator of the envelope tracking power supply regulator and cannot adjust to different load current change rates, thus the inductive current outputted by the multi-level switching regulator can better track the load current change.
    • 3. 发明公开
    • POWER SOURCE AND POWER SOURCE VOLTAGE REGULATING METHOD
    • STROMQUELLE UND SPANNUNGSREGELVERFAHRENFÜRDIE STROMQUELLE
    • EP2911282A4
    • 2016-08-24
    • EP13790135
    • 2013-06-25
    • ZTE CORP
    • WANG LINGUOZHANG BIN
    • H02M3/158H02M1/00H02M3/335
    • H02J4/00H02M3/158H02M3/33561H02M3/33576H02M2001/007H02M2001/008H02M2001/009Y10T307/549Y10T307/696
    • A power source and a power source voltage regulating method are described. The power source includes: a current source device, a voltage source device, and a voltage selection device. The current source device is configured to provide a current signal to the voltage source device; the voltage source device is connected to the current source device, includes multiple voltage sources, and is configured to convert the current signal from the current source device into a voltage signal; and the voltage selection device is connected to the voltage source device, and is configured to select one of voltage signals from multiple voltage sources as an output voltage signal. By means of the disclosure, one current source device is used to supply power to multiple voltage sources in the voltage source device, so as to maintain the output voltages (V 1 to V N ) of the voltage sources stable; the voltage selection device selects the output of one of the voltage sources as an ultimate output voltage (V out ) according to an actual voltage regulating demand, thereby significantly simplifying the structure of a multi-input power source, hence reducing the volume of the power source, reducing the cost, and improving the efficiency.
    • 描述电源和电源电压调节方法。 电源包括:电流源装置,电压源装置和电压选择装置。 电流源装置被配置为向电压源装置提供电流信号; 电压源装置连接到电流源装置,包括多个电压源,并且被配置为将来自电流源装置的电流信号转换成电压信号; 并且电压选择装置连接到电压源装置,并且被配置为从多个电压源中选择一个电压信号作为输出电压信号。 通过本公开,使用一个电流源装置向电压源装置中的多个电压源供电,以保持电压源的输出电压(V 1至V N)稳定; 电压选择装置根据实际的电压调节要求选择其中一个电压源的输出作为最终输出电压(V out),从而显着简化多输入电源的结构,从而减小功率的体积 来源,降低成本,提高效率。
    • 4. 发明公开
    • ISOLATING POWER SUPPLY AND OUTPUT FEEDBACK METHOD THEREFOR
    • EP3291431A4
    • 2018-05-02
    • EP15890535
    • 2015-08-26
    • ZTE CORP
    • WANG LINGUO
    • H02M3/335
    • H02M3/33523H02M3/33515
    • At least some embodiments of present invention provide an isolated power supply and an output feedback method for the isolated power supply. The isolated power supply includes: an inverter circuit, an isolation transformer, a rectifier circuit and a controller, wherein the isolation transformer comprises at least one primary winding and at least one secondary winding, and the controller is located at a side of the at least one primary winding; the inverter circuit is arranged to convert an input voltage signal of the isolated power supply into a first high-frequency switching signal, and transmit the first high-frequency switching signal to the at least one primary winding; the isolation transformer is arranged to couple the first high-frequency switching signal on the at least one primary winding to the at least one secondary winding, form a second high-frequency switching signal on the at least one secondary winding, couple the second high-frequency switching signal on the at least one secondary winding to the at least one primary winding and form a third high-frequency switching signal on the at least one primary winding; the rectifier circuit is arranged to convert the second high-frequency switching signal on the at least one secondary winding into a direct-current voltage signal; the controller is arranged to obtain the third high-frequency switching signal, obtain an amplitude of the direct-current voltage signal according to the third high-frequency switching signal, and control the inverter circuit according to the amplitude so as to configure the amplitude as a preset threshold value. The isolated power supply solves a problem of a large volume and small power density of a power supply.
    • 6. 发明公开
    • SWITCH POWER SOURCE AND METHOD FOR CONTROLLING SWITCH POWER SOURCE
    • SCHALTNETZTEIL UND VERFAHREN ZUR STEUERUNG DES SCHALTNETZTEILS
    • EP3136577A4
    • 2017-05-17
    • EP14893348
    • 2014-09-09
    • ZTE CORP
    • WANG LINGUO
    • H02M3/335H02M1/00H02M3/158H02M3/337
    • H02M3/33592H02M3/1582H02M3/33523H02M3/33576H02M3/33584H02M3/3374H02M2001/007
    • A switching power supply and a method for controlling the switching power supply, the switching power supply includes: an input power supply (10), a front-stage circuit (20) and a post-stage isolated circuit (30); the front-stage circuit (20) includes: a first inductor (101) and at least two switch devices (102, 103); and the post-stage isolated circuit (30) includes: a primary-side switch circuit (301), a transformer (302) and a secondary-side rectification circuit (303); herein, one end of the first switch device (102) is connected to a positive electrode of the input power supply (10), one end of the second switch device (103) and an input end of the first inductor (101) are jointly connected to another end of the first switch device (102), another end of the second switch device (103) is connected to a negative electrode of the input power supply (10), an output end of the first inductor (101) is connected to the primary-side switch circuit (301) of the post-stage isolated circuit (30), and another end of the primary-side switch circuit (301) is connected to another end of the second switch device (103).
    • 一种开关电源及控制开关电源的方法,其中开关电源包括:输入电源(10),前级电路(20)和后级隔离电路(30)。 前级电路(20)包括:第一电感器(101)和至少两个开关器件(102,103); (30)包括:初级侧开关电路(301),变压器(302)和次级侧整流电路(303)。 (102)的一端连接输入电源(10)的正极,第二开关装置(103)的一端与第一电感(101)的输入端共同连接, 连接到所述第一开关器件(102)的另一端,所述第二开关器件(103)的另一端连接到所述输入电源(10)的负极,所述第一电感器(101)的输出端连接到所述输入电源 连接到后级绝缘电路30的初级侧开关电路301,并且初级侧开关电路301的另一端连接到第二开关装置103的另一端。