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公开(公告)号：US09966941B2
公开(公告)日：2018-05-08
申请号：US14817666
申请日：2015-08-04
CPC分类号： H03K17/302 , G05F1/595
摘要： This disclosure describes techniques for generating relatively low regulated power supply voltages over a relatively wide range of input voltages. The techniques for generating the regulated voltages may include using at least two different pass transistors to regulate an output voltage of a voltage regulator. Both the turn-on threshold voltage and the maximum drain-to-source voltage rating of the first pass transistor may be greater than the corresponding characteristics of the second pass transistor. Using two different pass transistors with two different turn-on threshold voltages and two different maximum drain-to-source voltage ratings may increase the range of voltages over which a voltage regulator can generate a relatively low output voltage relative to the range of voltages that would be allowable if a single type of pass transistor were used.
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公开(公告)号：US09952610B1
公开(公告)日：2018-04-24
申请号：US15616300
申请日：2017-06-07
申请人： Katsuhiro Yokoyama , Yoichi Takano
发明人： Katsuhiro Yokoyama , Yoichi Takano
摘要： A semiconductor integrated circuit includes a control transistor, a control circuit, a reference circuit, a current source, and a stabilizing circuit including a first transistor whose base is connected to a node to receive the reference voltage. The reference circuit includes series-connected second transistor and first and second resistors, third and fourth transistors and third and fourth resistors, and fifth and sixth transistors. The fifth transistor has connected base and collector, which base is connected to a base of the third transistor, the second transistor has a base connected to a node between third and fourth transistors, fourth and sixth transistors have bases connected to a first node between first and second resistors or a second node between second transistor and first resistor, a potential at the first or second node is the reference voltage, and a gain is determined depending on a resistance of the first resistor.
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公开(公告)号：US20180024581A1
公开(公告)日：2018-01-25
申请号：US15218566
申请日：2016-07-25
摘要： Regulator circuitry may include a plurality of output circuits to generate a plurality of regulated output voltages. The regulator circuitry may include a single operational amplifier and a single feedback loop for regulation, which may reduce space and power consumed by the regulator circuitry. A transconductor and current mirror circuitry may be included to generate the plurality of regulated output voltages based a single operational amplifier output voltage generated with the single operational amplifier and feedback loop.
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公开(公告)号：US09876494B2
公开(公告)日：2018-01-23
申请号：US14499081
申请日：2014-09-26
发明人： Eddie Lok Chuen Ng
IPC分类号： H03B1/00 , H03K17/66 , G05F1/595 , H03K17/10 , H03K17/0412
CPC分类号： H03K17/668 , G05F1/595 , H03K17/04123 , H03K17/102
摘要： A high voltage output driver circuit includes a first regulator having a first input, a second input, and an output coupled to the second input, a second regulator having a first input, a second input and an output, a driver having a first signal input, a second signal input, a first control input coupled to the output of the first regulator, a second control input coupled to the output of the second regulator, a first control output, and a second control output, a first power transistor coupled to the first control output of the driver, and a second power transistor coupled to the second control output of the driver. An integrated circuit comprising the high voltage output driver does not require external bootstrap components, such as capacitors, nor the attendant extra pins required to connect to such external bootstrap components.
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公开(公告)号：US20170317625A1
公开(公告)日：2017-11-02
申请号：US15142219
申请日：2016-04-29
摘要： A voltage regulator includes an output transistor, an error amplifier coupled to the output transistor, a cascode transistor coupled to the output transistor in series, and a cascode bias circuit coupled to the cascode transistor and the output transistor. The output transistor is configured to generate an output signal at a first voltage. The error amplifier is configured to receive a reference signal. The cascode bias circuit is configured to bias the cascode transistor such that, in response to a drain-to-source short circuit of the output transistor, the cascode transistor generates the output signal at the first voltage.
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公开(公告)号：US20170262006A1
公开(公告)日：2017-09-14
申请号：US15169715
申请日：2016-05-31
发明人： Shih-Wei WANG , Cheng-Cheng YEN , Chih-Chien CHANG
摘要： A regulator includes a driving circuit, an amplifying circuit and an overvoltage protection circuit. The driving circuit is configured to receive an input voltage and provide an output voltage through an output terminal. The amplifying circuit is configured to control the driving circuit according to the output voltage. The overvoltage protection circuit is configured to conduct a first current from the output terminal of the overprotection circuit to a ground terminal. When the overvoltage protection circuit detects that a voltage level of a node coupled to the driving circuit is increased, the overvoltage protection circuit conducts a second current from the output terminal of the overprotection circuit to the ground terminal to lower the output voltage, in which the second current is larger than the first current.
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公开(公告)号：US09760105B1
公开(公告)日：2017-09-12
申请号：US15169715
申请日：2016-05-31
发明人： Shih-Wei Wang , Cheng-Cheng Yen , Chih-Chien Chang
摘要： A regulator includes a driving circuit, an amplifying circuit and an overvoltage protection circuit. The driving circuit is configured to receive an input voltage and provide an output voltage through an output terminal. The amplifying circuit is configured to control the driving circuit according to the output voltage. The overvoltage protection circuit is configured to conduct a first current from the output terminal of the overprotection circuit to a ground terminal. When the overvoltage protection circuit detects that a voltage level of a node coupled to the driving circuit is increased, the overvoltage protection circuit conducts a second current from the output terminal of the overprotection circuit to the ground terminal to lower the output voltage, in which the second current is larger than the first current.
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公开(公告)号：US20170212545A1
公开(公告)日：2017-07-27
申请号：US15007684
申请日：2016-01-27
发明人： Yvonne Lin , Da-Wen Lin , Peter Huang , Paul Rousseau , Sheng-Jier Yang
IPC分类号： G05F3/16 , H01L21/8234 , H01L29/06 , H01L27/088
CPC分类号： G05F3/16 , G05F1/465 , G05F1/468 , G05F1/595 , G05F3/247 , H01L21/823431 , H01L21/823475 , H01L27/0886 , H01L29/0649 , H01L29/0657 , H01L29/785
摘要： Some embodiments relate to a two transistor band gap reference circuit. A first transistor includes a first source, a first drain, a first body region separating the first source from the first drain, and a first gate. The first drain and first gate are coupled to a DC supply terminal. The second transistor includes a second source, a second drain, a second body region separating the second source from the second drain, and a second gate. The second gate is coupled to the DC supply terminal, and the second drain is coupled to the first source. Body bias circuitry is configured to apply a body bias voltage to at least one of the first and second body regions. Other embodiments relate to FinFET devices.
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99.发明授权公开(公告)号：US09535440B2
公开(公告)日：2017-01-03
申请号：US13836358
申请日：2013-03-15
发明人： Jeong-Min Seo , Sung-Cheon Park
CPC分类号： G05F1/595 , G09G3/3208 , G09G2330/028 , H02M3/156 , H02M3/158 , H03K17/122 , H05B33/0815 , H05B33/0824 , H05B33/0896
摘要： There are provided a DC-DC converter and an organic light emitting display device using the same. A DC-DC converter includes a converting module and a sensing unit. The converting module includes a switching module and a control module. The switching module has a plurality of switches, and each of the plurality of switches converts an input voltage into a first voltage and outputs the first voltage while being turned on/off in response to a corresponding pulse width modulation (PWM) signal. The control module controls a switching operation of the switching module by generating the PWM signal. The sensing unit senses driving current supplied to a load to which the first voltage is provided.
摘要翻译： 提供了一种DC-DC转换器和使用该DC-DC转换器的有机发光显示装置。 DC-DC转换器包括转换模块和感测单元。 转换模块包括开关模块和控制模块。 开关模块具有多个开关，并且多个开关中的每个开关将输入电压转换为第一电压，并响应于对应的脉宽调制（PWM）信号而导通/截止而输出第一电压。 控制模块通过产生PWM信号来控制开关模块的开关操作。 感测单元感测提供给提供第一电压的负载的驱动电流。
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公开(公告)号：US09229465B2
公开(公告)日：2016-01-05
申请号：US14225448
申请日：2014-03-26
申请人： Kailash Dhiman , Parul Sharma , Divya Tripathi
发明人： Kailash Dhiman , Parul Sharma , Divya Tripathi
CPC分类号： G05F1/595 , H04L25/0272
摘要： A current-starved inverter circuit includes first and second current-mirror circuits, first and second transistors, a detector, and a current-booster. The first and second transistors receive a first source current and a first sink current from the first and second current-mirror circuits, respectively, and an input voltage signal, and generate an inverted input voltage signal (an output voltage signal). The detector generates a first detection signal when the output voltage signal exceeds a first threshold value and a second detection signal when the output voltage signal is less than a second threshold value. The current-booster, which is connected to the detector, receives the first and second detection signals and provides a second source current and a second sink current to the first and second transistors to pull-up and pull-down a voltage level of the output voltage signal, respectively.
摘要翻译： 当前饥饿的逆变器电路包括第一和第二电流镜电路，第一和第二晶体管，检测器和电流 - 增强器。 第一和第二晶体管分别从第一和第二电流镜电路接收第一源极电流和第一沟道电流以及输入电压信号，并产生反相输入电压信号（输出电压信号）。 当输出电压信号小于第二阈值时，当输出电压信号超过第一阈值和第二检测信号时，检测器产生第一检测信号。 连接到检测器的电流 - 升压器接收第一和第二检测信号，并向第一和第二晶体管提供第二源极电流和第二吸收电流以上拉和下拉输出的电压电平 电压信号。
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