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    • 1. 发明申请
    • CONTROL CIRCUIT WITH DEEP BURST MODE FOR POWER CONVERTER
    • 用于电源转换器的具有深度冲击模式的控制电路
    • US20140043002A1
    • 2014-02-13
    • US13572777
    • 2012-08-13
    • CHI-CHEN CHUNGWEI-HSUAN HUANG
    • CHI-CHEN CHUNGWEI-HSUAN HUANG
    • G05F1/565
    • H02M3/33507H02M1/08H02M2001/0035Y02B70/16
    • A control circuit with deep burst mode for power converter according to the present invention comprises a load detection circuit and a PWM circuit. The load detection circuit generates a switching control signal in response to a feedback signal. The feedback signal is correlated to a load condition of the power converter. The PWM circuit generates a switching signal to regulate an output of the power converter in response to the switching control signal and the feedback signal. The control circuit performs a deep burst mode to switch the switching signal only one time during each deep burst period when the load condition of the power converter is a very light-load. Therefore, switching loss is reduced so that the power consumption of the power converter is also reduced.
    • 根据本发明的用于功率转换器的具有深脉冲模式的控制电路包括负载检测电路和PWM电路。 负载检测电路响应于反馈信号产生开关控制信号。 反馈信号与功率转换器的负载状态相关。 PWM电路响应于开关控制信号和反馈信号产生开关信号以调节功率转换器的输出。 当电力转换器的负载条件非常轻时,控制电路在每个深度脉冲串周期期间执行深脉冲串模式以切换开关信号一次。 因此,开关损耗减小,功率转换器的功耗也降低。
    • 3. 发明授权
    • Direct heat recovery absorption refrigeration system
    • 直接热回收吸收制冷系统
    • US5293759A
    • 1994-03-15
    • US914478
    • 1992-07-15
    • Chung-Chiang LeeHung-Yao ChaoPeggy LinChi-Chen ChungYuh-Yuan Yo
    • Chung-Chiang LeeHung-Yao ChaoPeggy LinChi-Chen ChungYuh-Yuan Yo
    • F25B15/02F25B27/00
    • F25B15/02Y02B30/62
    • An absorption refrigeration system uses a solution and a refrigerant contained in the solution as working mediums. The system includes (a) a generator for heating the solution to change a portion of the refrigerant into vapor; (b) a condenser communicated with the generator, for condensing refrigerant vapor coming from the generator; (c) a throttling device communicated with the condenser, for throttling condensed refrigerant coming from the condenser; (d) an evaporator communicated with said throttling device, having water circulating therewithin, capable of effecting heat transfer between the refrigerant coming from the throttling device and the circulating water; (e) an absorber communicated with the evaporator, having solution reservoired therewithin, for absorbing refrigerant coming from the evaporator by means of the reservoired solution; and (f) a heat exchanger communicated with the absorber and the generator, for performing indirect heat exchange between solution coming from the generator and solution coming from the absorber, characterized in that a solution mixing device, disposed between the heat exchanger and the generator, is provided for mixing solution leaving the generator and solution going to enter the generator. The system disclosed is capable of increasing the performance of heat transfer in the generator and reducing the cost of the generator, and thermal stress will also be reduced.
    • 吸收制冷系统使用溶液和包含在溶液中的制冷剂作为工作介质。 该系统包括(a)用于加热溶液以将一部分制冷剂变成蒸气的发生器; (b)与发电机连通的冷凝器,用于冷凝来自发电机的制冷剂蒸气; (c)与冷凝器连通的节流装置,用于节流来自冷凝器的冷凝制冷剂; (d)与所述节流装置连通的蒸发器,其具有在其中循环的水,能够实现来自节流装置的制冷剂与循环水之间的热传递; (e)与蒸发器连通的吸收器,其中储存有溶液,用于通过储存溶液吸收来自蒸发器的制冷剂; 和(f)与所述吸收器和所述发生器连通的热交换器,用于在来自所述发生器的溶液和来自所述吸收器的溶液之间进行间接热交换,其特征在于,设置在所述热交换器和所述发生器之间的溶液混合装置, 被提供用于离开发生器的混合溶液和溶液进入发生器。 所公开的系统能够增加发电机中的热传递性能并且降低发电机的成本,并且热应力也将降低。
    • 5. 发明申请
    • DC-DC CONVERTER
    • DC-DC转换器
    • US20080309302A1
    • 2008-12-18
    • US11965512
    • 2007-12-27
    • Ke-Horng ChenHong-Wei HuangSy-Yen KuoChi-Chen Chung
    • Ke-Horng ChenHong-Wei HuangSy-Yen KuoChi-Chen Chung
    • G05F1/00
    • H02M1/38H02M3/1588Y02B70/1466
    • The invention discloses DC-DC converters comprising an inductance, a pulse width modulator generating a pulse signal according to the voltage level of a transformed voltage output terminal, a load sensor sensing a load current, an adaptive enable signal generator generating a PMOS transistor enable signal and an NMOS transistor enable signal based on the pulse signal and the load current, and a power transistor set comprising at least one PMOS transistor and an NMOS transistor. The power transistor set is used in coupling the transformed voltage output terminal to an original DC voltage source or ground via the inductance. The conductance of the PMOS and NMOS transistors are controlled by the PMOS and NMOS transistor enable signals, respectively. The adaptive enable signal generator makes a first dead-time between the PMOS and NMOS transistor enable signals decreasing with increasing load current.
    • 本发明公开了一种DC-DC转换器,包括电感,根据变换电压输出端的电压电平产生脉冲信号的脉冲宽度调制器,感测负载电流的负载传感器,产生PMOS晶体管使能信号的自适应使能信号发生器 以及基于脉冲信号和负载电流的NMOS晶体管使能信号,以及包括至少一个PMOS晶体管和NMOS晶体管的功率晶体管组。 功率晶体管组用于通过电感将变压电压输出端子耦合到原始的直流电压源或接地。 PMOS和NMOS晶体管的电导分别由PMOS和NMOS晶体管使能信号控制。 自适应使能信号发生器使PMOS和NMOS晶体管使能信号之间的第一个死区时间随着负载电流的增加而减小。
    • 8. 发明授权
    • Control circuit with deep burst mode for power converter
    • 用于功率转换器的深脉冲模式的控制电路
    • US09379616B2
    • 2016-06-28
    • US13572777
    • 2012-08-13
    • Chi-Chen ChungWei-Hsuan Huang
    • Chi-Chen ChungWei-Hsuan Huang
    • G05F1/00H02M3/335H02M1/08H02M1/00
    • H02M3/33507H02M1/08H02M2001/0035Y02B70/16
    • A control circuit with deep burst mode for power converter according to the present invention comprises a load detection circuit and a PWM circuit. The load detection circuit generates a switching control signal in response to a feedback signal. The feedback signal is correlated to a load condition of the power converter. The PWM circuit generates a switching signal to regulate an output of the power converter in response to the switching control signal and the feedback signal. The control circuit performs a deep burst mode to switch the switching signal only one time during each deep burst period when the load condition of the power converter is a very light-load. Therefore, switching loss is reduced so that the power consumption of the power converter is also reduced.
    • 根据本发明的用于功率转换器的具有深脉冲模式的控制电路包括负载检测电路和PWM电路。 负载检测电路响应于反馈信号产生开关控制信号。 反馈信号与功率转换器的负载状态相关。 PWM电路响应于开关控制信号和反馈信号产生开关信号以调节功率转换器的输出。 当电力转换器的负载条件非常轻时,控制电路在每个深度脉冲串周期期间执行深脉冲串模式以切换开关信号一次。 因此,开关损耗减小,功率转换器的功耗也降低。