公开(公告)号：US06898091B2

公开(公告)日：2005-05-24

申请号：US10479091

申请日：2002-05-30

申请人： Tijmen Cornelis Van Bodegraven ,  Reinhold Elferich

发明人： Tijmen Cornelis Van Bodegraven ,  Reinhold Elferich

IPC分类号： H02M3/28 ,  H02M3/335 ,  H03K5/04 ,  H03K17/08 ,  H03K17/687

CPC分类号： H02M3/33507 ,  H02M2001/0012 ,  Y02B70/1433

摘要： A circuit arrangement is disclosed with a regulating circuit which is particularly used for regulating a resonant converter having a plurality of outputs. The arrangement includes a protective circuit that can be constructed with the least possible circuitry and cost. The regulating circuit is used for generating a pulse-width modulated regulation signal (20) in dependence on measuring signals (Va, Vb) present on inputs of the regulating circuit (20). The arrangement further includes a comparator circuit (212) for comparing the duty cycle (δ) of the regulation signal (20) with a predefinable maximum duty cycle value (δmax) and minimum duty cycle value (δmin), in which in case of a duty cycle (δ) situated outside the range between the maximum duty cycle value (δmax) and the minimum duty cycle value (δmin) the circuit arrangement delivers control information that corresponds to this exceeding of the range.

摘要翻译： 公开了具有调节电路的电路装置，该调节电路特别用于调节具有多个输出的谐振转换器。 该装置包括可以以最不可能的电路和成本构造的保护电路。 调节电路用于根据存在于调节电路（20）的输入端上的测量信号（Va，Vb）产生脉宽调制调节信号（20）。 该装置还包括比较器电路（212），用于将调节信号（20）的占空比（delta）与可预定的最大占空比值（deltamax）和最小占空比值（deltamin）进行比较，其中在 位于最大占空比值（deltamax）和最小占空比值（deltamin）之间的范围之外的电路布置的占空比（delta）传递对应于超出该范围的控制信息。

公开(公告)号：US06483725B2

公开(公告)日：2002-11-19

申请号：US09773416

申请日：2001-02-01

申请人： Cornelis Johannes Adrianus Schetters ,  Johannus Emmanuel Maria Lammers ,  Tijmen Cornelis Van Bodegraven

发明人： Cornelis Johannes Adrianus Schetters ,  Johannus Emmanuel Maria Lammers ,  Tijmen Cornelis Van Bodegraven

IPC分类号： H02M3335

CPC分类号： H02M3/3385

摘要： DC/DC conversion circuit (1), includes a transformer (2) having a primary winding (3), a secondary winding (4), and an auxiliary winding (5); a switching transistor (T), including a series circuit with the primary winding (3) between first and second direct current input terminals (6; 7); a start circuit (R1, C1) connected to a control electrode of the switching transistor (T) for switching the switching transistor (T) on by powering the direct current input terminals (6; 7); a control transistor connected to the control electrode of the switching transistor (T) for switching off the switching transistor (T) in dependence on a current flowing through the series circuit during operation. The auxiliary winding (5) and the control transistor (Q) connect to a voltage control circuit (8) for setting an output power provided at the secondary winding (4) of the transformer (2) during operation by a controlled switching-on of the switching transistor (T) in dependence on the magnitude of a current flowing in the primary winding (3). The conversion circuit (1) is arranged such that during operation via the auxiliary winding (5) a voltage required at the control electrode of the switching transistor (T) for on thereof is built up in a time period which is inversely proportional to the amount of output power provided at the secondary winding (4).

摘要翻译： DC / DC转换电路（1）包括具有初级绕组（3），次级绕组（4）和辅助绕组（5）的变压器（2）。 开关晶体管（T），包括与第一和第二直流输入端子（6; 7）之间的初级绕组（3）的串联电路; 连接到开关晶体管（T）的控制电极的开始电路（R1，C1），用于通过为直流输入端子供电来切换开关晶体管（T）; 连接到开关晶体管（T）的控制电极的控制晶体管，用于根据在工作期间流过串联电路的电流来关断开关晶体管（T）。 辅助绕组（5）和控制晶体管（Q）连接到电压控制电路（8），用于在操作期间通过受控接通的方式设置在变压器（2）的次级绕组（4）处提供的输出功率 所述开关晶体管（T）取决于在所述初级绕组（3）中流动的电流的大小。 转换电路（1）被布置成使得在经由辅助绕组（5）的操作期间，在与开关晶体管（T）的控制电极所需的电压在与时间成反比的时间段内被建立， 的输出功率设置在次级绕组（4）。

公开(公告)号：US20130320869A1

公开(公告)日：2013-12-05

申请号：US13985150

申请日：2012-02-16

申请人： William Peter Mechtildis Marie Jans ,  Haimin Tao ,  Tijmen Cornelis Van Bodegraven ,  Patrick John Zijlstra

发明人： William Peter Mechtildis Marie Jans ,  Haimin Tao ,  Tijmen Cornelis Van Bodegraven ,  Patrick John Zijlstra

IPC分类号： H05B33/08

CPC分类号： H05B33/0848 ,  H05B33/0803 ,  H05B33/0809 ,  H05B33/0815 ,  Y02B20/383

摘要： A lighting driver includes a shunt switch circuit configured to detect when an input of the lighting driver is connected to mains power without a ballast, and in response thereto to disable the lighting driver, and further configured to detect a type of ballast connected to the input of the lighting driver when the input of the lighting driver is connected to the ballast, and to regulate a bus voltage of the shunt switch circuit according to the detected type of ballast; and a switching mode power supply configured to receive the bus voltage of the shunt switch circuit and in response thereto to supply a lamp current to drive one or more light emitting diodes.

摘要翻译： 照明驱动器包括分流开关电路，其被配置为检测何时将照明驱动器的输入连接到市电而没有镇流器，并且响应于此禁用照明驱动器，并且还被配置为检测连接到输入的镇流器的类型 当照明驱动器的输入连接到镇流器时，根据检测到的镇流器类型调节分流开关电路的总线电压; 以及开关模式电源，被配置为接收分流开关电路的总线电压，并响应于此提供灯电流来驱动一个或多个发光二极管。