-
公开(公告)号：KR1020080040071A
公开(公告)日：2008-05-08
申请号：KR1020060107537
申请日：2006-11-02
Applicant: 삼성전자주식회사
IPC: H03G3/30
CPC classification number: H03F3/19 , H03F1/32 , H03F2200/294 , H03G1/0029 , H03G1/0088
Abstract: A wide band programmable variable gain amplifier and a radio receiver having the same are provided to improve a performance of a chip by acquiring a wide band characteristic of a radio frequency receiver. A wide band programmable variable gain amplifier includes a first amplifying unit, a second amplifying unit(12), and a third amplifying unit. The first amplifying unit receives and amplifies an external signal. The second amplifying unit has a programmable output load, receives the output of the first amplifying unit, and differentially outputs the received signal. The output load unit has a plurality of first switches and a first transistor coupled to a plurality of diodes which are switched by the first switches. The third amplifying unit has a programmable current mirror, differentially receives an output of the second amplifying unit through the current mirror, and outputs the received signal. The current mirror has a plurality of second switches and a plurality of second transistors which are switched by the second switches.
Abstract translation: 提供宽带可编程可变增益放大器和具有该宽带可编程可变增益放大器的无线电接收机，以通过获取射频接收机的宽带特性来提高芯片的性能。 宽带可编程可变增益放大器包括第一放大单元，第二放大单元（12）和第三放大单元。 第一放大单元接收和放大外部信号。 第二放大单元具有可编程输出负载，接收第一放大单元的输出，差分地输出接收信号。 输出负载单元具有多个第一开关和耦合到由第一开关切换的多个二极管的第一晶体管。 第三放大单元具有可编程电流镜，差分地通过电流镜接收第二放大单元的输出，并输出接收信号。 电流镜具有多个第二开关和由第二开关切换的多个第二晶体管。
-
公开(公告)号：KR101539237B1
公开(公告)日：2015-07-27
申请号：KR1020090004380
申请日：2009-01-20
Applicant: 삼성전자주식회사
CPC classification number: H02J7/0052 , H02J7/0006
Abstract: 인덕터나커패시터등과같은검출용회로소자를채용함이없이다양한충전모드들에서배터리의로딩유무를적절히검출할수 있는배터리로딩검출장치및 검출방법이개시된다. 그러한배터리로딩검출장치는, 체킹인에이블신호에응답하여일정타임구간동안제1 상태를유지하는체킹펄스를생성하는배터리체킹펄스제너레이터와; 부하로서연결되는배터리를충전하며, 인가되는배터리체크신호에응답하여배터리상태신호를생성하는콘스탄트전압레귤레이터와; 미리설정된기준신호와상기배터리상태신호를비교한결과신호와상기배터리체킹펄스제너레이터의상기체킹펄스를조합하여상기배터리체크신호를생성하며그 생성된배터리체크신호를이용하여상기배터리가상기콘스탄트전압레귤레이터에연결되었는지의여부를나타내는배터리검출신호를생성하는배터리검출판정부를구비한다. 본발명의실시예의배터리로딩검출장치에따르면, 검출을위한회로소자의채용부담이없어지고, 다양한충전모드들에구애됨이없이배터리가충전회로에전기적으로연결되어있는지의유무가보다정확히검출된다.
-
公开(公告)号：KR1020100081750A
公开(公告)日：2010-07-15
申请号：KR1020090001129
申请日：2009-01-07
Applicant: 삼성전자주식회사
CPC classification number: H02J7/0072
Abstract: PURPOSE: A load charger circuit is provided to alleviate the rapid change of a charge current by charging a load in response to a regulating voltage. CONSTITUTION: A current mirror part charges a load(10) in response to a regulating voltage. A charge control part applies comparison result values after comparing the current sensing value and voltage sensing value of the current mirror part with each reference value. A charge control part generates applied a result voltage as a regulating voltage. A source-drain channel is serially connected between a power source voltage and the ground in MOS transistors. The current mirror part comprises a first and a second P type MOS transistor. In the current mirror part, source is commonly connected to a power supply voltage(VCHG).
Abstract translation: 目的：提供负载充电器电路，以通过响应于调节电压对负载充电来减轻充电电流的快速变化。 构成：电流镜部分响应于调节电压而对负载（10）充电。 充电控制部分在将电流检测值和电流镜部分的电压感测值与每个参考值进行比较之后，应用比较结果值。 充电控制部分产生施加的结果电压作为调节电压。 源极 - 漏极通道串联连接在MOS晶体管的电源电压和地之间。 电流镜部分包括第一和第二P型MOS晶体管。 在电流镜部分，源极通常连接到电源电压（VCHG）。
-
公开(公告)号：KR101528306B1
公开(公告)日：2015-06-11
申请号：KR1020090021334
申请日：2009-03-12
Applicant: 삼성전자주식회사
CPC classification number: H02J7/0068 , H02J2007/0062
Abstract: 본발명은휴대용기기를공개한다. 이장치는특정의기능을수행하는시스템, 충전지전류에의해충전되고, 상기시스템으로전원을공급하는충전지, 외부로부터입력되는전원을직접적으로인가받아상기시스템으로시스템전류를공급하고, 상기시스템전류와비례하여증가하는비례전류를출력하는시스템전원공급부, 및상기외부로부터입력되는전원을직접적으로인가받고, 상기비례전류에비례하여감소하는상기충전지전류를상기충전지로공급하는충전지전원공급부를구비하는전원관리회로를구비하는것을특징으로한다.
-
公开(公告)号：KR1020100085208A
公开(公告)日：2010-07-29
申请号：KR1020090004380
申请日：2009-01-20
Applicant: 삼성전자주식회사
CPC classification number: H02J7/0052 , H02J7/0006 , G01R31/02 , G01R31/36
Abstract: 인덕터나커패시터등과같은검출용회로소자를채용함이없이다양한충전모드들에서배터리의로딩유무를적절히검출할수 있는배터리로딩검출장치및 검출방법이개시된다. 그러한배터리로딩검출장치는, 체킹인에이블신호에응답하여일정타임구간동안제1 상태를유지하는체킹펄스를생성하는배터리체킹펄스제너레이터와; 부하로서연결되는배터리를충전하며, 인가되는배터리체크신호에응답하여배터리상태신호를생성하는콘스탄트전압레귤레이터와; 미리설정된기준신호와상기배터리상태신호를비교한결과신호와상기배터리체킹펄스제너레이터의상기체킹펄스를조합하여상기배터리체크신호를생성하며그 생성된배터리체크신호를이용하여상기배터리가상기콘스탄트전압레귤레이터에연결되었는지의여부를나타내는배터리검출신호를생성하는배터리검출판정부를구비한다. 본발명의실시예의배터리로딩검출장치에따르면, 검출을위한회로소자의채용부담이없어지고, 다양한충전모드들에구애됨이없이배터리가충전회로에전기적으로연결되어있는지의유무가보다정확히검출된다.
Abstract translation: 目的：提供一种电池负载检测装置及其检测方法，用于精确地检测与各种充电模式相对于电池的充电电路的电连接。 构成：响应于检查使能信号，电池检查脉冲发生器（101）产生用于在恒定时间段期间保持第一状态的检查脉冲。 恒定电压调节器（102）响应于所应用的电池检查信号产生电池状态信号。 电池检测确定单元（103）使用电池检查信号产生用于指示电池的恒压调节器的连接的电池检测信号。
-
Patent Agency Ranking
公开(公告)号：KR1020070001460A
公开(公告)日：2007-01-04
申请号：KR1020050056960
申请日：2005-06-29
Applicant: 삼성전자주식회사
Inventor： 주호정
IPC: H03F3/45
CPC classification number: H03F3/453 , H03F3/45798 , H03F2203/45431 , H03F2203/45521 , H03F2203/45681
Abstract: An apparatus and a method for cancelling a DC output offset are provided to cancel an offset of input signals or the DC output offset generated according to mismatch of input ports of a transconductor, by comprising a differential amplifier, a detecting circuit and a feedback current generation circuit. According to a transconductor(20), a differential amplifier(210) amplifies a difference between a first input signal and a second input signal in response to control signals, and then outputs a first output voltage and a second output voltage and/or a first output current and a second output current based on the first and the second output voltage as a result. A detecting circuit(250) detects a DC voltage difference between the first output voltage and the second output voltage, and outputs a detected signal according to the detect result. A feedback current generation circuit(270) generates a feedback current to cancel the DC voltage difference in response to the detecting signal, and feeds the generated feedback current back to the differential amplifier.
Abstract translation: 提供了用于消除DC输出偏移的装置和方法，以通过包括差分放大器，检测电路和反馈电流产生来消除输入信号的偏移或根据跨导体的输入端口的不匹配而产生的DC输出偏移 电路。 根据跨导体（20），差分放大器（210）响应于控制信号放大第一输入信号和第二输入信号之间的差，然后输出第一输出电压和第二输出电压和/或第一输出 输出电流和基于第一和第二输出电压的第二输出电流。 检测电路（250）检测第一输出电压和第二输出电压之间的直流电压差，并根据检测结果输出检测信号。 反馈电流产生电路（270）响应于检测信号产生反馈电流以消除DC电压差，并且将产生的反馈电流馈送回差分放大器。
-
公开(公告)号：KR1020080102642A
公开(公告)日：2008-11-26
申请号：KR1020070049326
申请日：2007-05-21
Applicant: 삼성전자주식회사
IPC: H03L7/099
CPC classification number: H04B1/0082 , H03L7/093 , H03L7/099
Abstract: A local oscillation signal generator generates local oscillation signals with various frequency bands, requires a relatively small chip area, and reduces power consumption. A local oscillation signal generator includes a PLL(Phase Locked Loop) circuit, a first 2 divider(1st DIV2), a 3 divider(DIV3), a multiplexer(MUX), a second 2 divider(2nd DIV2). The PLL circuit includes a VCO(Voltage Controlled Oscillator) outputting the local oscillation signal, and a PLL 2 divider dividing and outputting the local oscillation signal by 2. The first 2 divier divides and outputs the local oscillation signal by 2. The 3 divider divides and outputs the local oscillation signal by 3. The second 2 divider divides the output signal of the multiplexer by 2 and outputs the divided signal.
Abstract translation: 本地振荡信号发生器产生具有各种频带的本地振荡信号，需要相对较小的芯片面积，并降低功耗。 本地振荡信号发生器包括PLL（锁相环）电路，第一分频器（1st DIV2），3除法器（DIV3），多路复用器（MUX），第二二分频器（2nd DIV2）。 PLL电路包括输出本地振荡信号的VCO（压控振荡器）以及PLL2分频器，分频并输出本地振荡信号2.前2个分频器将本地振荡信号分频并输出。3分频器除法器 并将本地振荡信号输出3.第二个2分频器将多路复用器的输出信号除以2，并输出分频信号。
-
公开(公告)号：KR100852186B1
公开(公告)日：2008-08-13
申请号：KR1020060107537
申请日：2006-11-02
Applicant: 삼성전자주식회사
IPC: H03G3/30
CPC classification number: H03F3/19 , H03F1/32 , H03F2200/294 , H03G1/0029 , H03G1/0088
Abstract: 광 대역 고주파 대역에서 저 전압 동작에 적합한 프로그래머블 가변 이득 증폭기는, 외부 신호를 입력받고 증폭하기 위한 제1증폭부; 프로그램가능한 출력 부하부를 포함하고, 상기 제1증폭부의 출력을 입력받아 차동으로 출력하며, 상기 출력 부하부에 복수의 제1스위치와 상기 제1스위치에 의해 각각 단속되는 복수의 다이오드 연결된 제1트랜지스터를 구비하는 제2증폭부; 및 프로그램가능한 전류 미러 입력부를 포함하고, 상기 제2증폭부의 출력을 차동으로 입력받아 차동으로 출력하며, 상기 전류 미러 입력부는 복수의 제2스위치와 상기 제2스위치에 의해 각각 단속되는 복수의 다이오드 연결된 제2트랜지스터를 가지며, 상기 제2트랜지스터는 상기 제1트랜지스터와 각각 전류 미러링하도록 구성되는 제3증폭부를 포함한다.
PVGA(Programmable Variable Gain Amplifier), 믹서(Mixer), Front-end, 튜너(Tuner), 전류 미러(Current mirror), AC 커플링(AC-Coupling).-
公开(公告)号：KR1020080034238A
公开(公告)日：2008-04-21
申请号：KR1020060100193
申请日：2006-10-16
Applicant: 삼성전자주식회사
IPC: H04B1/16
CPC classification number: H04B1/0064 , H04B1/16
Abstract: A multi-band receiver and a multi-band tuner are provided to reduce power consumption by using a single chip. Receiving units(210-230) form one-to-one correspondence with respective band signals to receive multi-band signals. A mixer unit(240) converts one of the multi-band signals into one of a baseband signal and an IF(Intermediate Frequency) signal. An LO(Local Oscillation) unit(250) provides a local oscillating signal corresponding to one band signal to the mixer unit. If the converted signal corresponds to a baseband signal, a reconfigurable bandpass filter unit(260) serves as an LPF(Los Pass Filter), and if a signal outputted from a selected receiving unit corresponds to an IF signal, the reconfigurable bandpass filter unit serves as a complex bandpass filter. An LFPGA(Low Frequency Programmable Gain Amplification) unit(270) amplifies a signal outputted from the reconfigurable bandpass filter unit.
Abstract translation: 提供多频带接收机和多频带调谐器以通过使用单个芯片来降低功耗。 接收单元（210-230）与各个频带信号形成一一对应，以接收多频带信号。 混频器单元（240）将多频带信号之一转换为基带信号和IF（中频）信号之一。 LO（本地振荡）单元（250）向混频器单元提供对应于一个频带信号的本地振荡信号。 如果转换的信号对应于基带信号，则可重构带通滤波器单元（260）用作LPF（Los Pass Filter），如果从选择的接收单元输出的信号对应于IF信号，则可重构带通滤波器单元 作为一个复杂的带通滤波器。 LFPGA（低频可编程增益放大）单元（270）放大从可重构带通滤波器单元输出的信号。
-
公开(公告)号：KR101543668B1
公开(公告)日：2015-08-12
申请号：KR1020090001129
申请日：2009-01-07
Applicant: 삼성전자주식회사
CPC classification number: H02J7/0072
Abstract: 스무드충전변경방식을갖는부하충전회로가개시된다. 그러한부하충전회로는, 인가되는레귤레이팅전압에응답하여부하를충전하는전류미러부와; 상기부하의충전상태가설정된상태에도달되는경우에정전류충전방식에서정전압충전방식으로변경하기위해, 상기전류미러부의전류센싱값 및전압센싱값을각각의기준값과비교한비교결과값들을, 서로직렬로연결된모오스트랜지스터들의게이트에인가하여얻어지는결과전압을상기레귤레이팅전압으로서생성하는충전제어부를구비한다. 본발명의부하충전회로에따르면, 회로소자의채용부담을감소또는최소화하면서도급격한충전전류의변동을초래함이없이스무드하게충전방식이변경된다.
-
-
-
-
-
-
-
-
-
Search Results
12
records
(took 0.021 seconds)
