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公开(公告)号：US09553579B2
公开(公告)日：2017-01-24
申请号：US14964630
申请日：2015-12-10
Applicant: PR Electronics A/S
Inventor： Bjarne Funch Skipper
CPC classification number: H03K17/943 , G01V8/20 , G06F3/0421 , H03K17/9636 , H03K2217/94116
Abstract: An optical keypad for use in hazardous areas and which can ensure safe and reliable detection of keystrokes through an at least 8 mm thick glass window, as is required for electronics equipment located in hazardous explosive areas (In accordance with ATEX Directive 94/9/EC and similar requirements) is obtained by providing a system in which at least 6 LEDs are lit in a pseudo-random sequence, modulated by a pseudo-random frequency and the interval between the lighting of each of the LEDs is change randomly to avoid interference between collocated keypads and light from other sources, such as daylight and artificial light.
Abstract translation: 用于危险区域的光学键盘，可以通过至少8 mm厚的玻璃窗口确保安全可靠地检测击键，如位于危险爆炸区域的电子设备所需（根据ATEX指令94/9 / EC 和类似的要求）通过提供一种系统，其中至少6个LED以伪随机序列点亮，由伪随机频率调制，并且每个LED的点亮之间的间隔随机改变以避免干扰 搭配键盘和来自其他来源的光，如日光和人造光。
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公开(公告)号：US09552003B2
公开(公告)日：2017-01-24
申请号：US15094459
申请日：2016-04-08
Applicant: PR Electronics A/S
Inventor： Dan Vinge Madsen , Stig Alnøe Lindemann
IPC: G05F1/46 , H03K5/007 , H03K7/08 , H02M3/157 , H03F3/347 , H03F3/393 , H03F3/45 , H03G3/30 , H03M1/82
CPC classification number: G05F1/468 , H02M3/157 , H03F3/347 , H03F3/393 , H03F3/45475 , H03F2200/135 , H03F2200/144 , H03F2200/156 , H03F2200/159 , H03F2200/165 , H03F2200/264 , H03F2200/297 , H03F2200/351 , H03F2200/372 , H03F2200/375 , H03F2200/528 , H03F2203/45512 , H03F2203/45526 , H03F2203/45528 , H03F2203/45531 , H03F2203/45534 , H03F2203/45536 , H03F2203/45594 , H03F2203/45631 , H03F2203/45701 , H03G3/3021 , H03K5/007 , H03K7/08 , H03M1/822
Abstract: A circuit for generation of a reference voltage for an electronic system, which circuit comprises at least one digital buffer (U21, U31, U32, U41, U51), a low pass filter (R21, C21; R31, C31; R41, C41; R51, C51) and an operational amplifier (OA21, OA31, OA41, OA51)), which circuit is adapted to revive an input in the form of a bandgap reference voltage into the digital buffer, which digital buffer is adapted to receive a digital input from a Pulse Width Modulated (PWM) signal, which digital buffer is adapted to generate an output signal adapted to be fed to the low pass filter, which output signal after filtration is adapted to be fed to a positive input terminal of the operational amplifier, which operational amplifier comprises a feedback circuit, which feedback circuit comprises at least one capacitor (C22, C32, C44, C54) adapted to be connected from an output terminal of the operational amplifier towards a negative input terminal of the operational amplifier so as to form an integrator, wherein the feedback circuit further comprises at least one chopped signal path (R22, S21; R33, R34, S32; R33, R35, C35, S31), which chopped signal is adapted to be modulated by the output signal of the digital buffer.
Abstract translation: 用于产生电子系统的参考电压的电路，该电路包括至少一个数字缓冲器（U21，U31，U32，U41，U51），低通滤波器（R21，C21; R31，C31; R41，C41; R51，C51）和运算放大器（OA21，OA31，OA41，OA51）），该电路适于将带隙参考电压形式的输入恢复到数字缓冲器中，该数字缓冲器适于接收数字输入 来自脉宽调制（PWM）信号，该数字缓冲器适于产生适于馈送到低通滤波器的输出信号，滤波后的输出信号适于馈送到运算放大器的正输入端， 该运算放大器包括反馈电路，该反馈电路包括适于从运算放大器的输出端子向运算放大器的负输入端连接的至少一个电容器（C22，C32，C44，C54），以形成 一个整合 其中所述反馈电路还包括至少一个斩波信号路径（R22，S21; R33，R34，S32; R33，R35，C35，S31），该斩波信号适于由数字缓冲器的输出信号调制。
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公开(公告)号：US20160141872A1
公开(公告)日：2016-05-19
申请号：US14898169
申请日：2014-06-04
Applicant: PR ELECTRONIC A/S
Inventor： Stig Alnøe LINDEMANN
CPC classification number: H02J3/005 , G05F1/67 , H02J3/10 , H02J3/38 , H02M3/33569
Abstract: A power supply and a method for operating the power supply in which a transformer connected to an excitation circuit . . . is adapted to be connected to a power source, which secondary winding is connected to at least one first power supply. From prior art. switch mode power supply based on fly back technology is well known. Here a power supply with a power inlet is provided with a plurality of separated power outlets. One of the lines connected to the primary winding is further connected to a discharge control circuit, which discharge control circuit is further connected to at least one second power supply and the primary winding is further connected to a discharge circuit where at least one further power supply is connected.
Abstract translation: 一种用于操作电源的电源和方法，其中连接到激励电路的变压器。 。 。 适于连接到电源，该次级绕组连接到至少一个第一电源。 从现有技术 基于飞返技术的开关电源是众所周知的。 这里，具有电源入口的电源设置有多个分离的电源插座。 连接到初级绕组的线路之一进一步连接到放电控制电路，放电控制电路进一步连接到至少一个第二电源，并且初级绕组进一步连接到放电电路，其中至少一个另外的电源 已连接。
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公开(公告)号：US20150200600A1
公开(公告)日：2015-07-16
申请号：US14413853
申请日：2013-06-27
Applicant: PR Electronics A/S
Inventor： Stig Alnøe Lindemann , Dan Vinge Madsen
IPC: H02M3/335
CPC classification number: H02M3/33546 , H02M1/10 , H02M3/33561
Abstract: A converter with at least one or more transformers having at least one primary side magnetically coupled to at least one secondary side, the primary side being electrically isolated from the secondary side, wherein a first transformer has first and second sets of coils and a second transformer has third and fourth sets of coils. The first set of coils is connected in series to the third set of coils, wherein one of the secondary sides is connectable to an external output unit, wherein another secondary side is connectable to an external input source, wherein the two secondary sides are electrically isolated from each other, wherein the primary side is adapted to drive the transformers that are connectable to an external power source. The converter uses a shared current path and an isolated current-to-current transfer between the input and output sides to replicate the input current to an output current.
Abstract translation: A转换器，其具有至少一个或多个变压器，其具有至少一个初级侧，其至少一个次级侧磁耦合，所述初级侧与所述次级侧电隔离，其中第一变压器具有第一组和第二组线圈，以及第二变压器 具有第三和第四组线圈。 第一组线圈串联连接到第三组线圈，其中次侧之一可连接到外部输出单元，其中另一个次级侧可连接到外部输入源，其中两个次级侧电隔离 彼此之间，其中初级侧适于驱动可连接到外部电源的变压器。 转换器使用共享电流路径和输入和输出侧之间的隔离电流到电流传输，以将输入电流复制到输出电流。
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公开(公告)号：US09647573B2
公开(公告)日：2017-05-09
申请号：US14394308
申请日：2013-04-11
Applicant: PR Electronics A/S
Inventor： Mads Kolding Nielsen , Stig Alnøe Lindemann
CPC classification number: H02M7/537 , H02M3/07 , H02M2001/0006
Abstract: A low-power power supply for an electronic circuit uses an existing current input and converts the current to a higher voltage sufficient for supplying an electronic circuit. The input current generates a defined input voltage, which input voltage is initially generated by voltage drop by the input current passing at least one diode in the open direction of the diode. The input voltage, through a transistor, charges a plurality of switched capacitor networks in a first mode of operation, and in a second mode of operation, the switched capacitor networks are coupled in series for multiplying the input voltage to second higher voltage that is supplied to a oscillating circuit. The oscillating circuit drives the input current via a transformer and half bridge driver to convert a low voltage current supply from a low voltage current into a low current and higher voltage useable for supplying a small electronic circuit.
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Patent Agency Ranking
6.发明申请Universal Input Voltage DC-DC Converter Employing Low Voltage Capacitor Power Bank 审中-公开采用低压电容器电源的通用输入电压DC-DC转换器公开(公告)号：US20160301316A1
公开(公告)日：2016-10-13
申请号：US15094402
申请日：2016-04-08
Applicant: PR Electronics A/S
Inventor： Knud Gade Nielsen
IPC: H02M3/335
CPC classification number: H02M3/33507 , H02M1/10 , H02M1/4258 , H02M3/155 , H02M3/335 , H02M3/33523 , H02M3/33538 , H02M3/33569 , H02M7/217 , H02M2001/0096 , Y02B70/126
Abstract: A power supply for generating DC voltage and current based on an AC power input (Vi), which power supply comprises at least one rectifier (D1) adapted to be connected to the AC power input, which rectifier is adapted to be connected to at least one high voltage capacitor (Ci1), which power supply further comprises at least one low voltage capacitor (Ci2), which low voltage capacitor is adapted to be connected through at least one first switch (S1), which high voltage capacitor is adapted to be connected to at least one DC-DC converter, wherein characterized in that the DC-DC converter comprises at least one transformer (T1), which transformer comprises at least one primary coil (N1) and at least a first and a second secondary coils (N3, N2), which first secondary coil is adapted to be connected through at least one semiconductor (D5), which second secondary coil is adapted to be connected through a semiconductor (D3) and a second switch (S2) to the low voltage capacitor, which low voltage capacitor is formed as a capacitor bank.
Abstract translation: 一种用于基于AC电力输入（Vi）产生DC电压和电流的电源，所述电源包括适于连接到AC电力输入的至少一个整流器（D1），该整流器适于至少连接到 一个高压电容器（Ci1），该电源还包括至少一个低压电容器（Ci2），该低压电容器适于通过至少一个第一开关（S1）连接，该高压电容器适于 连接到至少一个DC-DC转换器，其特征在于，所述DC-DC转换器包括至少一个变压器（T1），所述变压器包括至少一个初级线圈（N1）和至少第一和第二次级线圈 N3，N2），所述第一次级线圈适于通过至少一个半导体（D5）连接，所述第二次级线圈适于通过半导体（D3）和第二开关（S2）连接到所述低电压电容器 ，哪个低电压 年龄电容器形成为电容器组。
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公开(公告)号：US20160299519A1
公开(公告)日：2016-10-13
申请号：US15094459
申请日：2016-04-08
Applicant: PR Electronics A/S
Inventor： Dan Vinge Madsen , Stig Alnøe Lindemann
CPC classification number: G05F1/468 , H02M3/157 , H03F3/347 , H03F3/393 , H03F3/45475 , H03F2200/135 , H03F2200/144 , H03F2200/156 , H03F2200/159 , H03F2200/165 , H03F2200/264 , H03F2200/297 , H03F2200/351 , H03F2200/372 , H03F2200/375 , H03F2200/528 , H03F2203/45512 , H03F2203/45526 , H03F2203/45528 , H03F2203/45531 , H03F2203/45534 , H03F2203/45536 , H03F2203/45594 , H03F2203/45631 , H03F2203/45701 , H03G3/3021 , H03K5/007 , H03K7/08 , H03M1/822
Abstract: A circuit for generation of a reference voltage for an electronic system, which circuit comprises at least one digital buffer (U21, U31, U32, U41, U51), a low pass filter (R21, C21; R31, C31; R41, C41; R51, C51) and an operational amplifier (OA21, OA31, OA41, OA51)), which circuit is adapted to revive an input in the form of a bandgap reference voltage into the digital buffer, which digital buffer is adapted to receive a digital input from a Pulse Width Modulated (PWM) signal, which digital buffer is adapted to generate an output signal adapted to be fed to the low pass filter, which output signal after filtration is adapted to be fed to a positive input terminal of the operational amplifier, which operational amplifier comprises a feedback circuit, which feedback circuit comprises at least one capacitor (C22, C32, C44, C54) adapted to be connected from an output terminal of the operational amplifier towards a negative input terminal of the operational amplifier so as to form an integrator, wherein the feedback circuit further comprises at least one chopped signal path (R22, S21; R33, R34, S32; R33, R35, C35, S31), which chopped signal is adapted to be modulated by the output signal of the digital buffer.
Abstract translation: 用于产生电子系统的参考电压的电路，该电路包括至少一个数字缓冲器（U21，U31，U32，U41，U51），低通滤波器（R21，C21; R31，C31; R41，C41; R51，C51）和运算放大器（OA21，OA31，OA41，OA51）），该电路适于将带隙参考电压形式的输入恢复到数字缓冲器中，该数字缓冲器适于接收数字输入 来自脉宽调制（PWM）信号，该数字缓冲器适于产生适于馈送到低通滤波器的输出信号，滤波后的输出信号适于馈送到运算放大器的正输入端， 该运算放大器包括反馈电路，该反馈电路包括适于从运算放大器的输出端子向运算放大器的负输入端连接的至少一个电容器（C22，C32，C44，C54），以形成 一个整合 其中所述反馈电路还包括至少一个斩波信号路径（R22，S21; R33，R34，S32; R33，R35，C35，S31），该斩波信号适于由数字缓冲器的输出信号调制。
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公开(公告)号：US20160173087A1
公开(公告)日：2016-06-16
申请号：US14964630
申请日：2015-12-10
Applicant: PR Electronics A/S
Inventor： Bjarne Funch SKIPPER
IPC: H03K17/94
CPC classification number: H03K17/943 , G01V8/20 , G06F3/0421 , H03K17/9636 , H03K2217/94116
Abstract: An optical keypad for use in hazardous areas and which can ensure safe and reliable detection of keystrokes through an at least 8 mm thick glass window, as is required for electronics equipment located in hazardous explosive areas (In accordance with ATEX Directive 94/9/EC and similar requirements) is obtained by providing a system in which at least 6 LEDs are lit in a pseudo-random sequence, modulated by a pseudo-random frequency and the interval between the lighting of each of the LEDs is change randomly to avoid interference between collocated keypads and light from other sources, such as daylight and artificial light.
Abstract translation: 用于危险区域的光学键盘，可以通过至少8 mm厚的玻璃窗口确保安全可靠地检测击键，如位于危险爆炸区域的电子设备所需（根据ATEX指令94/9 / EC 和类似的要求）通过提供一种系统，其中至少6个LED以伪随机序列点亮，由伪随机频率调制，并且每个LED的点亮之间的间隔随机改变以避免干扰 搭配键盘和来自其他来源的光，如日光和人造光。
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公开(公告)号：US10511296B2
公开(公告)日：2019-12-17
申请号：US15502246
申请日：2015-07-01
Applicant: PR ELECTRONICS A/S
Inventor： Stig Alnøe Lindemann , Dan Vinge Madsen
Abstract: The present invention relates to a system and a method for pulse width modulation and demodulation of a continuous input signal, which system is configured to receive a continuous input to an analog modulator, which system comprises a demodulator generating a continuous output signal. It is the object of the pending patent application to use an analog modulator for transmitting the signal from the input stage over to an output stage. A further object of the pending patent application is to preserve the signal integrity in regard to precision and to minimize both non-linearities and distortion side effects. The object can be fulfilled by the analog modulator being formed as a composite phase modulator which composite phase modulator comprises at least one feedback loop which feedback loop determines the width of a low-level discrete signal, which composite phase modulator comprises at least one feed-forward loop, which feed-forward loop determines the width of a high-level discrete signal as a function of the continuous input. Hereby it can be achieved that timing between discrete low-level and high-level forms a discontinuous output signal representing the continuous input.
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公开(公告)号：US09599652B2
公开(公告)日：2017-03-21
申请号：US14652221
申请日：2014-05-21
Applicant: PR Electronics A/S
Inventor： Bjarne Funch Skipper
CPC classification number: G01R31/026 , G01K7/026 , G01K7/20 , G01K15/007 , G01R31/2829
Abstract: A measuring system and a method for operating it to detect wire breakage based on the measured current or voltage in which the impedance of at least a first sensor is measured and the result transmitted to a connected system. The invention is capable of detecting wire breakage and sensor failure in temperature sensor systems simultaneous with the temperature measurement by the measuring system comprising an AC current source which generates an AC current that is transmitted through the wires, and through at least the first sensor, measuring system analyzing changes in the phase angle between the current and voltage of the AC signal. If the difference in the frequency of the signal affecting the impedance or voltage of the sensor, and the frequency of the injected wire testing signal is sufficiently high, it is possible to distinguish between the first measuring signals and the second wire testing signal.
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