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    • 1. 发明授权
    • Switched-mode power supply with switching-off from secondary side
    • 从次级侧断开的开关电源
    • US06349045B1
    • 2002-02-19
    • US09602981
    • 2000-06-23
    • Reinhard KögelAchim Elgert
    • Reinhard KögelAchim Elgert
    • H02M7537
    • H02M3/3385H02M3/33523
    • The switched-mode power supply comprises a transformer, a switching transistor connected in series with a primary winding of the transformer, a primary-side control circuit and a secondary-side regulating stage. The regulating stage is coupled to a coupling element for transiting a regulating signal from the secondary side to the primary side. A first switch is situated between the control input of the switching transistor and a primary-side operating voltage, and a second switch is situated between the regulating stage and a secondary-side operating voltage, with the two operating voltages being able to be disconnected using a single control signal. In this case, the isolating element transmits both the regulating information for the primary-side control circuit and the turn-off signal for the first switch. If the second switch is turned off by the control signal, the regulating stage and the optocoupler become completely currentless and consume no further power. As a result of this, the optocoupler is off on the primary side, which means that the first switch is also turned off, so that both the switching transistor and the control circuit become currentless. In this situation, the switched-mode power supply is completely currentless except for the starting circuit, so that the power consumption is reduced down to below 0.2 W in the off-state.
    • 开关电源包括变压器,与变压器的初级绕组串联的开关晶体管,初级侧控制电路和次级侧调节级。 调节级耦合到用于将调节信号从次级侧转移到初级侧的耦合元件。 第一开关位于开关晶体管的控制输入端和初级侧工作电压之间,第二开关位于调节级和次级侧工作电压之间,其中两个工作电压能够使用 单个控制信号。 在这种情况下,隔离元件发送用于初级侧控制电路的调节信息和用于第一开关的关断信号。 如果通过控制信号关闭第二开关,则调节级和光耦合器变得完全无电流并且不再消耗电力。 结果,光耦合器在初级侧断开,这意味着第一开关也被截止,使得开关晶体管和控制电路都变为无流动。 在这种情况下,除了启动电路之外,开关电源完全无电流,从而在关断状态下功耗降低到0.2W以下。
    • 2. 发明授权
    • Power factor correction circuit with a coil
    • 功率因数校正电路与线圈
    • US07002320B2
    • 2006-02-21
    • US10484336
    • 2002-07-15
    • Achim ElgertMichel ThibaultJean-Paul Louvel
    • Achim ElgertMichel ThibaultJean-Paul Louvel
    • G05F1/70
    • H02M1/4258H01F5/02H01F17/04H01F27/325H01F37/00Y02B70/126
    • The switched-mode power supply according to the invention has a power factor correction circuit, which operates on the principle of a current pump and has a first coil for damping voltage spikes, as well as a second coil for power factor correction. The two inductances are in this case connected in series and are arranged on a coil former and on a common core. In one preferred exemplary embodiment, an E/E ferrite core is used as the core, and a coil former with chambers is used as the coil former, with the windings of the two inductances being arranged in different chambers. An empty chamber, which is located in the region of the air gap in the core, is advantageously arranged between the two inductances. This partially decouples the two inductances by means of the air gap, so that the damping response of the first inductance is better.
    • 根据本发明的开关式电源具有功率因数校正电路,该电源以电流泵的原理工作,并具有用于阻尼电压尖峰的第一线圈以及用于功率因数校正的第二线圈。 在这种情况下,两个电感串联连接,并且布置在线圈架上和公共芯上。 在一个优选的示例性实施例中,使用E / E铁氧体磁芯作为磁芯,并且具有室的线圈架用作线圈架,两个电感器的绕组被布置在不同的腔室中。 位于芯部中的空气间隙区域中的空腔有利地布置在两个电感之间。 这通过气隙部分地分离两个电感,使得第一电感的阻尼响应更好。
    • 3. 发明授权
    • Switched-mode power supply with a damping network
    • 具有阻尼网络的开关电源
    • US07019994B2
    • 2006-03-28
    • US10485499
    • 2002-07-17
    • Achim ElgertMichel ThibaultJean-Paul Louvel
    • Achim ElgertMichel ThibaultJean-Paul Louvel
    • H02M5/42
    • H02M1/34H02M3/335H02M2001/346Y02B70/1491
    • The switched-mode power supply contains a transformer, a switching transistor in series with the primary winding of the transformer, and a damping network on the secondary side, which has a connection for a further secondary winding via which energy is transferred from this damping network, by way of example, to a charge-storage capacitor which is coupled to this secondary winding. The connection is advantageously produced via a rectifying element, for example a diode, which is coupled after the rectifying diode (D5) for the second secondary winding. In a further exemplary embodiment, the diode in the series circuit, which is connected in parallel with the rectifier diode for the first secondary winding, is not coupled to the charge-storage capacitor for the first secondary winding, but is likewise coupled to the charge-storage capacitor for the second secondary winding.
    • 开关型电源包括变压器,与变压器的初级绕组串联的开关晶体管和次级侧上的阻尼网络,其具有用于进一步次级绕组的连接,能量从该阻尼网络传递 作为示例,涉及耦合到该次级绕组的电荷存储电容器。 该连接有利地通过整流元件(例如二极管)产生,该二极管在用于第二次级绕组的整流二极管(D 5)之后耦合。 在另一示例性实施例中,与用于第一次级绕组的整流二极管并联连接的串联电路中的二极管不耦合到用于第一次级绕组的电荷存储电容器,而是耦合到充电 - 第二次级绕组的电容器。
    • 4. 发明授权
    • Vertical deflection circuit
    • 垂直偏转电路
    • US5465032A
    • 1995-11-07
    • US204011
    • 1994-02-18
    • Achim ElgertThomas Holzer
    • Achim ElgertThomas Holzer
    • H01J29/76H03K4/69H04N3/16H04N3/27H01J29/70
    • H04N3/27H03K4/696
    • A vertical deflection circuit includes a first pin which receives a forward scanning voltage having a first level and a first frequency. During a flyback period a second pin receives a flyback voltage having a second level higher that the first level and a second frequency higher than the first frequency. A third voltage source provides a first pulse. A switch means selectively couples the first pin and the third voltage source in response to a vertical blanking signal. The vertical blanking signal is differentiated to provide a differentiated signal and a voltage divider applies the differentiated signal to the switch to apply the first pulse to the first pin.
    • 垂直偏转电路包括接收具有第一电平和第一频率的正向扫描电压的第一引脚。 在回扫期间,第二引脚接收具有比第一频率高的第一电平和第二频率的第二电平的回扫电压。 第三电压源提供第一脉冲。 开关装置响应于垂直消隐信号选择性地耦合第一引脚和第三电压源。 垂直消隐信号被微分以提供微分信号,分压器将微分信号施加到开关以将第一脉冲施加到第一引脚。