Silicon carbide lateral metal-oxide semiconductor field-effect transistor having a self-aligned drift region and method for forming the same
    1.
    发明授权
    Silicon carbide lateral metal-oxide semiconductor field-effect transistor having a self-aligned drift region and method for forming the same 失效
    具有自对准漂移区域的碳化硅横向金属氧化物半导体场效应晶体管及其形成方法

    公开(公告)号:US06620697B1

    公开(公告)日:2003-09-16

    申请号:US09961982

    申请日:2001-09-24

    申请人: Dev Alok Rik Jos

    发明人: Dev Alok Rik Jos

    IPC分类号: H01L21336

    摘要: A silicon carbide lateral metal-oxide-semiconductor field-effect transistor (SiC LMOSFET) having a self-aligned drift region and method for forming the same is provided. Specifically, the SiC LMOSFET includes a source region, a drift region and a drain region. The source and drain regions are implanted using non self-aligned technology (i.e., prior to formation of the gate electrode and the gate oxide layer), while the drift region is implanted using self-aligned technology (i.e., after formation of the gate electrode and the gate oxide layer). By self-aligning the drift region to the gate electrode, the overlap between the two is minimized, which reduces the capacitance of the device. When capacitance is reduced, performance is improved.

    摘要翻译: 提供了具有自对准漂移区域的碳化硅横向金属氧化物半导体场效应晶体管(SiC LMOSFET)及其形成方法。 具体地,SiC LMOSFET包括源极区,漂移区和漏极区。 使用非自对准技术(即,在形成栅极和栅极氧化物层之前)注入源极和漏极区域,而使用自对准技术(即,在形成栅极电极之后) 和栅极氧化物层)。 通过将漂移区域自对准到栅电极,两者之间的重叠被最小化,这降低了器件的电容。 当电容降低时,性能得到改善。

    EFFICIENT LINEAR LINC POWER AMPLIFIER
    2.
    发明申请
    EFFICIENT LINEAR LINC POWER AMPLIFIER 失效
    高效线性LINC功率放大器

    公开(公告)号:US20110051842A1

    公开(公告)日:2011-03-03

    申请号:US12989890

    申请日:2009-04-30

    IPC分类号: H04L27/00 H03F3/217

    摘要: Method for setup of parameter values in a RF power amplifier circuit arrangement (200), wherein the amplifier circuit arrangement (200) comprises a first (210) and a second (220) amplification branch and is operated in an out-phasing configuration for amplification of RF input signals with modulated amplitude and modulated phase and respective circuit arrangements are disclosed. According to a first aspect a re-optimization of the dead-time or conversely the duty-cycle, respectively, the phase of the output signal after the combiner can be kept linear with respect to the out-phasing angle. Further, according to a second aspect, additionally to introduction of an optimally chosen dead-time, a non-coherent combiner (Lx, Lx*) can reduce crowbar current and switching losses due the output capacitance (Cds). Furthermore, according to a third aspect the reactive compensation can, additionally or alternatively, be controlled by operating both amplification branches at different duty-cycles.

    摘要翻译: 一种用于在RF功率放大器电路装置(200)中设置参数值的方法,其中所述放大器电路装置(200)包括第一(210)和第二(220)放大支路,并且以用于放大的外相配置工作 公开了具有调制幅度和调制相位的RF输入信号和相应的电路布置。 根据第一方面,分别对死区时间进行重新优化或相反地对占空比进行重新优化,组合器之后的输出信号的相位可以相对于外相角保持线性。 此外,根据第二方面,除了引入最佳选择的死区时间之外,非相干组合器(Lx,Lx *)可以减少由于输出电容(Cds)引起的短路电流和开关损耗。 此外,根据第三方面,可以通过在不同的占空比下操作两个放大分支来另外地或替代地对无功补偿进行控制。

    Efficient linear LINC power amplifier
    4.
    发明授权
    Efficient linear LINC power amplifier 失效
    高效线性LINC功率放大器

    公开(公告)号:US08269555B2

    公开(公告)日:2012-09-18

    申请号:US12989890

    申请日:2009-04-30

    IPC分类号: H03F3/68

    摘要: Method for setup of parameter values in a RF power amplifier circuit arrangement (200), wherein the amplifier circuit arrangement (200) comprises a first (210) and a second (220) amplification branch and is operated in an out-phasing configuration for amplification of RF input signals with modulated amplitude and modulated phase and respective circuit arrangements are disclosed. According to a first aspect a re-optimization of the dead-time or conversely the duty-cycle, respectively, the phase of the output signal after the combiner can be kept linear with respect to the out-phasing angle. Further, according to a second aspect, additionally to introduction of an optimally chosen dead-time, a non-coherent combiner (Lx, Lx*) can reduce crowbar current and switching losses due the output capacitance (Cds). Furthermore, according to a third aspect the reactive compensation can, additionally or alternatively, be controlled by operating both amplification branches at different duty-cycles.

    摘要翻译: 一种用于在RF功率放大器电路装置(200)中设置参数值的方法,其中所述放大器电路装置(200)包括第一(210)和第二(220)放大支路,并且以用于放大的外相配置工作 公开了具有调制幅度和调制相位的RF输入信号和相应的电路布置。 根据第一方面,分别对死区时间进行重新优化或相反地对占空比进行重新优化,组合器之后的输出信号的相位可以相对于外相角保持线性。 此外,根据第二方面,除了引入最佳选择的死区时间之外,非相干组合器(Lx,Lx *)可以减少由于输出电容(Cds)引起的短路电流和开关损耗。 此外,根据第三方面,可以通过在不同的占空比下操作两个放大分支来另外地或替代地对无功补偿进行控制。

    Switching amplifier
    5.
    发明授权
    Switching amplifier 有权
    开关放大器

    公开(公告)号:US08174311B2

    公开(公告)日:2012-05-08

    申请号:US12875928

    申请日:2010-09-03

    申请人: Rik Jos

    发明人: Rik Jos

    IPC分类号: H03F3/38

    CPC分类号: H03F3/2176 H03F2200/387

    摘要: A switching amplifier (200; 300; 400; 500) comprising: a switch (202; 302) configured to electrically connect and disconnect a first pin (202a; 302a) of the switch (202; 302) to a second pin (202b; 302b) of the switch (202; 302) in accordance with a pulse width modulated input signal (216; 316; 516). The second pin (202b; 302b) is connected to a ground connector (204; 304). The switching amplifier also comprises a feed inductor (206; 306; 406) connected between a voltage supply connector (208; 308) and the first pin (202a; 302a) of the switch (202; 302), and a circuit (210; 310; 522) comprising a variable component having a variable imaginary impedance. The circuit (210; 310; 522) is connected between the first pin (202a; 302a) of the switch (202; 302) and an output connector of the amplifier (212; 312. The switching amplifier further comprising a controller (214; 314; 514) configured to generate a control signal (315; 515) for the circuit (210; 310; 522) such that the variable component of the circuit is adjustable in accordance with the duty cycle of the pulse width modulated input signal (216; 316; 516).

    摘要翻译: 一种开关放大器(200; 300; 400; 500),包括:开关(202; 302),被配置为将开关(202; 302)的第一引脚(202a; 302a)电连接到第二引脚(202b; 302),根据脉冲宽度调制输入信号(216; 316; 516),开关(202; 302) 第二销(202b; 302b)连接到接地连接器(204; 304)。 开关放大器还包括连接在电压供应连接器(208; 308)和开关(202; 302)的第一引脚(202a; 302a)之间的馈电电感器(206; 306; 406),以及电路(210; 310; 522)包括具有可变虚拟阻抗的可变分量。 电路(210; 310; 522)连接在开关(202; 302)的第一引脚(202a; 302a)和放大器(212; 312)的输出连接器之间。 314; 514),其被配置为产生用于所述电路(210; 310; 522)的控制信号(315; 515),使得所述电路的可变分量可根据脉宽调制输入信号(216 ; 316; 516)。