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    • 2. 发明授权
    • Switching power supply apparatus with over-temperature protection
    • 开关电源设备具有过温保护功能
    • US06819091B2
    • 2004-11-16
    • US10241708
    • 2002-09-12
    • Yutaka IshiharaToru Takahashi
    • Yutaka IshiharaToru Takahashi
    • G05F156
    • H02M1/32G05F1/567H02M3/155
    • The present invention relates to a switching power supply apparatus equipped with an over-temperature protection circuit that operates appropriately even when a problem occurs in the control circuit. A switching conversion circuit 2 has a switching element 21 turned on and off according to a drive signal S5 supplied from a drive circuit 5, converts the voltage supplied via a input circuit 1 to switching output, and outputs that switching output. An output circuit 3 is supplied with the switching output, adjusts the supplied switching output to a prescribed output, and outputs that prescribed output. A control circuit 4 supplies a control signal S4 to the drive circuit 5. An over-temperature protection circuit 6 comprises a temperature detector 61 and a switch 62, and is connected to the control electrode of the switching element 21, and cuts off the drive signal S5 via the switch 62 when the temperature detector 61 detects an abnormal temperature in the switching power supply apparatus.
    • 本发明涉及一种配备有过热保护电路的开关电源装置,其即使在控制电路中出现问题时也能适当地工作。 开关转换电路2根据从驱动电路5提供的驱动信号S5使开关元件21导通和截止,将经由输入电路1提供的电压转换为开关输出,并输出该开关输出。 向输出电路3提供开关输出,将提供的开关输出调整到规定的输出,并输出该规定的输出。 控制电路4将控制信号S4提供给驱动电路5.过热保护电路6包括温度检测器61和开关62,并连接到开关元件21的控制电极,并切断驱动 当温度检测器61检测到开关电源装置中的异常温度时,通过开关62输出信号S5。
    • 3. 发明申请
    • Discharge lamp lighting apparatus and discharge lamp apparatus
    • 放电灯照明装置和放电灯装置
    • US20050057194A1
    • 2005-03-17
    • US10952720
    • 2004-09-30
    • Yutaka IshiharaKazuo Okawa
    • Yutaka IshiharaKazuo Okawa
    • H05B41/282H05B41/16H05B41/292H05B41/392H05B37/02
    • H05B41/392H05B41/2923H05B41/2926
    • The present invention relates to a discharge lamp lighting apparatus which can prevent an increase of loss and a rise of temperature in the area where discharge lamp tube voltage is low. The power conversion circuit 1 converts the input power Pin to output the DC power Pd. The discharge lamp driving circuit 5 converts the DC power Pd supplied from the power conversion circuit 1 to output AC voltage Vo and AC current Io. The controller 2 provides constant power control for maintaining the AC power Po provided by the AC voltage Vo and AC current Io to be constant when the AC voltage Vo is higher than the predetermined value V1, and provides power reduction control for reducing AC power Po to the power conversion circuit 1 when the AC voltage Vo is lower than the predetermined value V1.
    • 放电灯点灯装置技术领域本发明涉及能够防止放电灯管电压低的区域的损失增加和温度升高的放电灯点亮装置。 电力转换电路1将输入电力Pin转换为输出直流电力Pd。 放电灯驱动电路5将从电力转换电路1提供的直流电力Pd转换为输出交流电压Vo和交流电流Io。 当AC电压Vo高于预定值V1时,控制器2提供恒定的功率控制,用于将由AC电压Vo和AC电流Io提供的AC电力Po保持为恒定,并且提供用于减少AC功率Po的功率降低控制 当交流电压Vo低于预定值V1时,电力转换电路1。
    • 4. 发明授权
    • Discharge lamp lighting apparatus and discharge lamp apparatus
    • 放电灯照明装置和放电灯装置
    • US07084586B2
    • 2006-08-01
    • US10952720
    • 2004-09-30
    • Yutaka IshiharaKazuo Okawa
    • Yutaka IshiharaKazuo Okawa
    • G05F1/00
    • H05B41/392H05B41/2923H05B41/2926
    • The present invention relates to a discharge lamp lighting apparatus which can prevent an increase of loss and a rise of temperature in the area where discharge lamp tube voltage is low. The power conversion circuit 1 converts the input power Pin to output the DC power Pd. The discharge lamp driving circuit 5 converts the DC power Pd supplied from the power conversion circuit 1 to output AC voltage Vo and AC current Io. The controller 2 provides constant power control for maintaining the AC power Po provided by the AC voltage Vo and AC current Io to be constant when the AC voltage Vo is higher than the predetermined value V1, and provides power reduction control for reducing AC power Po to the power conversion circuit 1 when the AC voltage Vo is lower than the predetermined value V1.
    • 放电灯点灯装置技术领域本发明涉及能够防止放电灯管电压低的区域的损失增加和温度升高的放电灯点亮装置。 电力转换电路1将输入电力Pin转换为输出直流电力Pd。 放电灯驱动电路5将从电力转换电路1提供的直流电力Pd转换为输出交流电压Vo和交流电流Io。 当AC电压Vo高于预定值V 1时,控制器2提供恒定的功率控制,用于将由AC电压Vo和AC电流Io提供的AC电力Po保持为恒定,并且提供降低AC功率Po 当交流电压Vo低于预定值V 1时,转换到电力转换电路1。
    • 6. 发明授权
    • Discharge lamp lighting apparatus
    • 放电灯照明装置
    • US06967449B2
    • 2005-11-22
    • US10807232
    • 2004-03-24
    • Yutaka IshiharaAkiko TakeyaMasayuki Yamashima
    • Yutaka IshiharaAkiko TakeyaMasayuki Yamashima
    • H05B41/24H05B41/18H05B41/282H05B41/288H05B41/292H05B37/02
    • H05B41/2883H05B41/2928
    • The present invention relates to a discharge lamp lighting apparatus in which overshoot occurring when the polarity of AC rectangular wave voltage/current is inverted is suppressed. An inverter converts DC power supplied by a converter to AC rectangular wave power and outputs the AC rectangular wave power. A power calculation unit generates a power detection signal based upon a voltage detection signal and a current detection signal detected on the output side of the converter. A control target value setting unit outputs an output power command value to be used to control the DC power so as to achieve a target value. A correction signal generation unit outputs a correction signal to be used to correct the output power command value in conformance to the power detection signal in synchronization with a polarity inversion of the AC rectangular wave power. A converter control signal generation unit outputs a signal corresponding to the error of the power detection signal relative to the output power command value. A pulse width control unit implements pulse width control on the converter based upon the signal provided by the converter control signal generation unit.
    • 本发明涉及一种放电灯点亮装置,其中AC矩形波电压/电流的极性反转时发生过冲。 逆变器将由转换器提供的直流电力转换为交流矩形波电力,并输出交流矩形波电力。 功率计算单元基于在转换器的输出侧检测到的电压检测信号和电流检测信号来生成电力检测信号。 控制目标值设定单元输出用于控制直流电力的输出功率指令值,以达到目标值。 校正信号生成单元与AC矩形波功率的极性反转同步地输出用于校正与功率检测信号一致的输出功率指令值的校正信号。 A转换器控制信号生成单元相对于输出功率指令值输出与功率检测信号的误差对应的信号。 脉冲宽度控制单元基于由转换器控制信号生成单元提供的信号来实现转换器上的脉冲宽度控制。