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    • 1. 发明申请
    • CIRCUIT ARRANGEMENTS AND METHODS FOR A REMOTE CONTROL RECEIVER HAVING A PHOTODIODE
    • 具有光电转换功能的远程控制接收机的电路布置和方法
    • WO2004064005A2
    • 2004-07-29
    • PCT/IB2003/006279
    • 2003-12-15
    • PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBHKONINKLIJKE PHILIPS ELECTRONICS N.V.DEPPE, CarstenDÜRBAUM, ThomasSAUERLÄNDER, Georg
    • DEPPE, CarstenDÜRBAUM, ThomasSAUERLÄNDER, Georg
    • G08C
    • H03F3/087G08C23/04
    • A control unit (2) of a remote control receiver sets the forward or reverse direction operating mode of the photodiode (1) as a function of the useful signal level of its output signal, and to be precise, during standby, the photovoltaic operating mode (forward mode), since in this mode no external bias current is required. If the useful signal level of the photodiode (1) exceeds a predefined threshold, the reverse mode is set, and this brings with it a higher sensitivity. A series circuit (A) of a number of identical photodiodes DA1 DAn in the forward mode allows the realization of a controlled current source (6) having a transistor (T), since the permissible diode voltage (Ud) of the overall arrangement may have n times the value of the operating voltage of an individual photodiode. Thus at the same time the voltage across the individual diodes can be set to a very low value and a favorable operating range for the current source can be set. The possible sensitivity of the receiver module having diodes in this operating mode can thereby be considerably increased.
    • 遥控接收器的控制单元(2)根据其输出信号的有用信号电平来设置光电二极管(1)的正向或反向操作模式,并且准确地说,在待机期间,光伏操作模式 (正向模式),因为在此模式下不需要外部偏置电流。 如果光电二极管(1)的有用信号电平超过预定义的阈值,则反向模式被设置,并带来更高的灵敏度。 正向模式下的多个相同光电二极管DA1 DAn的串联电路(A)允许实现具有晶体管(T)的受控电流源(6),因为整体布置的容许二极管电压(Ud)可以具有 n倍于单个光电二极管的工作电压值。 因此,同时,可以将各个二极管两端的电压设置为非常低的值,并且可以设置用于电流源的有利的工作范围。 因此,可以显着增加在该操作模式中具有二极管的接收器模块的可能灵敏度。
    • 9. 发明申请
    • METHOD OF OPERATING A SWITCHED-MODE POWER SUPPLY AND SWITCHED-MODE POWER SUPPLY
    • 操作开关电源和开关电源的方法
    • WO2003073594A2
    • 2003-09-04
    • PCT/IB2003/000664
    • 2003-02-21
    • PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBHKONINKLIJKE PHILIPS ELECTRONICS N.V.DÜRBAUM, ThomasLOEF, ChristophDEPPE, Carsten
    • DÜRBAUM, ThomasLOEF, ChristophDEPPE, Carsten
    • H02M1/00
    • H02M1/12H02M2001/0032Y02B70/16
    • In the case of known switched-mode power supplies with integrated preconditioner, the control curves are largely congruent, but deviate from one another in low-load operation, whereby the unregulated intermediate circuit voltage increases. To improve efficiency in low-load operation, closed-loop control of the burst cycle is effected on the primary side of the voltage transformer. The intermediate circuit voltage is limited to a permissible limit value. The closed-loop control device in the switching stage taps the intermediate circuit voltage at a voltage divider which is arranged between the preconditioner functional unit and the switching stage. An assembly additionally monitors the output voltage, for example by means of an optocoupler. Burst mode comprises one or more burst cycles. A burst cycle is started when the intermediate circuit voltage reaches its limit value. At this time, the voltage transformer is switched off. A burst cycle ends when the output voltage reaches a minimum value. At this time at the latest, the voltage transformer is switched on again. Burst mode is terminated again either when the switched-mode power supply is again operated under normal load or when a maximum time has elapsed, measured from the start of burst mode.
    • 在具有集成预处理器的已知开关模式电源的情况下,控制曲线在很大程度上是一致的,而在低负载运行中彼此偏离,从而使不稳定的中间电路电压增加。 为了提高低负载运行的效率,在变压器初级侧进行突发周期的闭环控制。 中间电路电压被限制在允许的极限值。 开关级中的闭环控制装置将中间电路电压分配在预分离器功能单元和开关级之间的分压器上。 组件另外监视输出电压,例如通过光耦合器。 突发模式包括一个或多个突发周期。 当中间电路电压达到其极限值时,开始脉冲串周期。 此时,变压器关闭。 当输出电压达到最小值时,突发周期结束。 此时,变压器再次接通。 当开关模式电源在正常负载下再次运行或当从突发模式开始测量出最大时间时,再次终止突发模式。