SC941160中文资料

SC9149A/SC9150A 红外遥控接收电路摘自—第一价值网(IC网络超市)简介:SC9149A/SC9150A是为红外遥控接收系统设计的一块专用电路,该电路与红外遥控发射电路SC9148A配合使用时,可构成一完整的遥控发射、接收系统。

SC9149A可完成10个控制功能，为16引线塑封双列直插式。

SC9150A可完成18个控制功能，为24阴险塑封双列直插式。

主要特点：1．可并行输出从遥控发射电路来的多重按键信号。

（SC9149A可并行输出5个功能，SC9150A可并行输出6个功能）。

2．可输出单脉冲（SP）、保持脉冲（HP）和循环脉冲（CP）等信号。

3．振荡电路的外接RC元件只有一个电路引脚4．有较强的接收码检查功能，以防止从其它电器设备来的干扰管脚排列：内部框图：产品规格分类：SC9149A改进型，功能同SC9149,DIP-16封装SC9149AL改进型，有循环输出模式，DIP-16封装。

SC9149AHN 改进型，输入端反相输入，除了当HP1或HP2有效时，将清除CP1外，其余功能同AL型，DIP-16封装SC9150A改进型，功能同SC9150,DIP-24封装极限参数参数符号参数范围单位电源电压V DD 6.0 V 输入/输出电压V IN,V OUT Vss-0.3V~V DD+0.3V V 功耗P D 200 mW 工作温度Tamb -20~+75 ℃贮存温度Tstg -55~+125 ℃电气参数(除非特殊说明,Tamb=25℃,V DD=5.0V)参数符号测试条件最小值典型值最大值单位工作电源电压V DD Ta=25~75° 4.5 5.5 V 工作电流电流I DD 输出不接负载 1.0 mA 标准振荡频率Sfosc 38 kHz 振荡频率Fosc 27 57 kHz 振荡频率随电源电压的变化∆VFOSC VDD=4.5~5.5V -5 +5 % 振荡频率随温度的变化∆TFOSC Ta=-30~ +75°C -5 +5 % 输出电流高电平I OH 所有输入,V OH=4.0 -1.0 mA 低电平I OL 所有输入,V OL=1V 1.0 mA 输入电流高电平I IH CODE端,V IH=5.0 -1.0 1.0 µA 上拉电阻Rup CODE端10 20 40 kΩ输入回路阈值电压V IN Rx端 2.0 2.5 3.0 V 回差电压宽度V HIS Rx端0.8 V第一价值网为您提供低廉的价格.保证最好的品质!~SC9149A 中文PDF资料下载/查看。

专利名称：一种锻件合金钢
专利类型：发明专利
发明人：刘存福
申请号：CN201610845147.X 申请日：20160923
公开号：CN107868916A
公开日：
20180403
专利内容由知识产权出版社提供
摘要：本发明公开了一种锻件合金钢，所述合金中含有下列成分：按重量计，碳(C)的含量为0.4～0.45%、锰(Mo)的含量为0.5～1%、硅(Si)的含量为1～1.5%、铬(Cr)的含量为3～6%、镍(Ni)的含量为1.5～3%、钼(Mo)的含量为0.5～0.65%、铌(Nb)的含量为0.01～0.1‰、硫(S)的含量小于
0.002%、磷(P)的含量小于0.005%。

通过改进合金钢中微量元素的成分及含量，以及改进锻件合金钢的制造工艺，以达到提高超高强度合金钢锻件的韧性，减少超高强度合金钢锻件疲劳强度/抗拉强度比值的下降程度，同时提高超高强度合金钢锻件的延迟断裂强度的目的。

申请人：重庆向阳仪器有限公司
地址：400000 重庆市九龙坡区杨家坪天宝路138号
国籍：CN
更多信息请下载全文后查看。

SHAOXING SILICORE TECHNOLOGY CO.,LTD www. Silicore. com. cnCHMC 3/5TEST CIRCUITAPPLICATION CIRCUITAPPLICATION NOTEThe application circuit illustrates the use of the UTC9106 device in typical telephone tone ringer application.The AC ringer signal voltage appears across the TIP and RING inputs of the circuit and is attenuated by capacitor C1 and resistor R1.C1 also provides isolation from DC voltage (48V) on the exchanged line.After full wave rectification by the bridge diode, the waveform is filtered by capacitor C4 to provide a DC supply for the tone ringer chip.As this voltage exceeds the initiation voltage (Vsi), oscillation starts.SHAOXING SILICORE TECHNOLOGY CO.,LTD www. Silicore. com. cnCHMC 4/5With the components shown, the output frequency chops between 512Hz (f H1) and 640 Hz (f H2) at 10Hz (f L) rate.The loudspeaker load is coupled through a 1300W to 8W transformer.The output coupling capacitor C5 is required with transformer coupled loads.When driving a pizeo-ceramic transducer type load, the coupling C5 and transformer (1300Ω:8Ω) are not required.However, a current limiting resistor is required.The low frequency oscillator oscillates at a rate (FL) controlled by an external resistor (R2) and capacitor (C2).The frequency can be determined using the relation f L=1/1.289 R2* C2. The high frequency oscillates at a f H1, f H2 controlled by an external resistor (R3) and capacitor (C3). The frequency can be determined using the relation f H1=1/1.504 R3*C3 andf H2= 1/1.203 R3*C3.Pin 2 of the SC9106 allows connection of external resistor RSL, which is used to program the slope of the supply current vs supply voltage characteristics (see Fig.3), and hence the supply current up to the initiation voltage (Vsi). This initiation voltage remains constant independent of RSL.The supply current drawn prior to triggering varies inversely with RSL, decreasing for increasing value of resistance. Thus, increasing the value of RSL, will decrease the amount of AC ringing current required to trigger the device. As such, longer subscriber loops are possible since less voltage is dropped per unit length of loop wire due to the lower current level. RSL can also be used to compensated for smaller AC coupling capacitors (C5 on application circuit) (higher impedance) to the line which can be used to alter the ringer equivalence number of a tone ringer circuit.The graph in Fig.3 illustrates the variation of supply current with supply voltage of the SC9106.Three curves are drawn to show the variation of initiation current with RSL. Curve B ( RSL=6.8kΩ) shows the I-V characteristic for SC9106 tone ringer. Curve A is a plot with RSL<6.8kΩ and shows an increase in the current drawn up to the initiation voltage Vsi. The I-V characteristic after initiation remains unchanged. Curve C illustrates the effect of increasing RSL above 6.8kW initiation current decreases but again current after triggering is unchanged.SHAOXING SILICORE TECHNOLOGY CO.,LTD www. Silicore. com. cnCHMC 5/5CHARACTERISTICS CURVESFig.2 Fig.3。

July 25, 2000BLOCK DIAGRAMFEATURES•=Allows use of small surface mount components •=Ultra fast transient recovery time•=Dramatic reduction of input ripple current and out-put ripple voltage•=5-bit programmable DAC for the latest, lower output voltage Microprocessors •=Wide, High frequency operating range •=Selectable 2, 3, 4 phase operation•=+5 Volt only operation eliminates the need for +12V supply•=Precision load current sharing,1%PWM match •=Selectable internal or external clock •=Soft start/UVLO/Over current protectionAPPLICATIONS•=High end servers and workstations•=High current/Ultra-fast transient microprocessors TEL:805-498-2111 FAX:805-498-3804 WEB:DEVICE(1)PACKAGE TEMP. (T J )SC1146CSW.TRSO-240 - 85°CORDERING INFORMATIONNote:(1) Only available in tape and reel packaging. A reel contains 1000 devices.DESCRIPTIONThe SC1146 is the latest, high performance, multi-phase (PWM) controller designed for high power mi-croprocessors requiring ultra fast transient response.The SC1146 is programmable for the voltage range required by the latest Microprocessors . Utilizing a novel and unique design, the controller distributes the output load across (up to) four converter channels by digitally phase shifting the PWM outputs. This ap-proach greatly reduces the stress and heat on the out-put stage components while lowering input ripple cur-rent by as much as 80%. Accurate current sharing among the four phases is achieved by precision design techniques and trimming of critical elements.The high speed transconductance error amplifier is ex-ternally initialized using a soft-start capacitor allowing the controller to “wake-up” without overshoot, thus pro-tecting the low voltage microprocessor loads. The out-put drive voltage to the power MOSFETs is pro-grammable to minimize switching losses in the drive circuitry.The output voltage is digitally programmable by means of a 5 bit DAC (new codes). A single resistor programs the master clock frequency (8MHz max) or the clock can be supplied by an external source where exact fre-quency control is desired. The number of operating phases is programmed independently of the external clock. The parts features under-voltage lock-out with hysteresis and over-current protection.July 25, 2000ELECTRICAL CHARACTERISTICSUnless otherwise noted: T A = 25°C, V CC 5V = 5V, V CC2 = 5V, 4-Phase operation.PARAMETER SYMBOL CONDITIONSMIN TYP MAX UNITS Supply Voltage Range V CC2 3.9 5.015.0V UVLO Range V CC5V 3.95.06.0V UVLO HystersisV CC5VTBDmVSupply Voltage Range V CC5V 4.5 5.0 5.5V Supply Current V CC2DRV Outputs open 10mA Supply CurrentV CC5V V OUT = 2.00V, I O = 040mA Reference Current Pin Voltage V REF Iref = 250µA 2.05V VID0-4 Clock Select & Divide V INL Logic Low 0.8V Select Logic Threshold V INH Logic High 2V VID0-4 Clock Select & Divide I INL Vid0-4 = 0V -20µA Select Input Bias Current I INH Vid0-4 = 4.5V+50µA Enable PinV INL .8V V INH 2V Maximum Duty Cycle D MAX FB = 0V 75%DRV0-3 Output Voltage V OL I sink = 1mA.3V V OH I source = 1mA, PWRGOOD = V cc5vV CC2-1V DRV0-3 Source Current I SRC V OUT = 2.00V 40mA DRV0-3 Sink CurrentI SNKV OUT = 2.00V 20mAABSOLUTE MAXIMUM RATINGSParameter Symbol Limits Units V CC5V to GND V cc5v -0.3 to + 12V FBG to GND FBG ± 1V V CC2 to GNDV cc2-0.3 to +20V Operating Temperature Range T A 0 to +70°C Junction Temperature Range T J 0 to +125°C Storage Temperature Range T STG -55 to +150°C Thermal Resistance Junction to Case θJC 25°C/W Thermal Resistance Junction to Ambient θJA 80°C/W Lead Temperature (Soldering) 10 secT LEAD300°CJuly 25, 2000ELECTRICAL CHARACTERISTICS (Cont.)Unless otherwise noted: T A = 25°C, V CC5V = 5V, V CC2 = 5V, 4-Phase operation.Note:(1) This device is ESD sensitive. Use of standard ESD handling precautions is required.July 25, 2000NOTE: (1) All logic inputs and outputs are open collector TTL compatible.PIN DESCRIPTIONPin #Pin NamePin Function1V CC 5V Supply voltage input (5V nominal)2Divsel Connect to Gnd for four phase operation and to logic High for three Phase operation.3Clksel Clock Select: Logic High selects internal clock. Logic Low selects external clock.4ExtclkExternal Clock Input. The output frequency is determined by (Clock Input Freq.)/4. Output freq.= (Clock Input)/4. Pull up to Vcc5v to select internal clock.5R REFConnects to external reference resistor. Sets the operating frequency of the internal clock and the ramp time for the PWM. Reference voltage at this pin is 2.05V. Trimmed to set 250µA at 8MHz.6VID0(1)Programming Input (LSB)7VID1(1)Programming Input 8VID2(1)Programming Input 9VID3(1)Programming Input 10VID4(1)Programming Input (MSB)11OC+Over current comparator. Non-Inverting input.12OC-Over current comparator. Inverting input.13COMPCompensation Pin. Compensation is acheived by connecting a capacitor in series with a resistor between this pin and FBG. A 300K ohm resistor must also be directly connected between this pin and FBG.14FB Feedback input connected to supply output.15BG OUTBandgap Reference Output. Output resistance = 3Kohm. Must bebypassed with 4.7nF-100nF capacitor to FBG. This capacitor programs the soft start time.16FBG Feedback Ground. This pin must be connected to return side of output caps. This pin is not internally connected to GND.17ENABLE Connects to 5V to ENABLE. Connect to GND to disable entire device.18GND Ground Pin19DRV2Phase 2 output, output voltage range ~.3V - V CC2 - 1V.20DRV0Phase 0 output, output voltage range ~.3V - V CC2 - 1V.21VCC2Supply voltage for the DRV0-3, may be connected to +5V or +12V supply.There is no Undervoltage Lockout on this pin.22DRV1Phase 1 output, output voltage range ~.3V - V CC2 - 1V.23DRV3Phase 3 output, output voltage range ~.3V - V CC2 - 1V.24PWRGOODPower good should be pulled-up to 5V supply via a 3K - 10K resistor.July 25, 2000OUTPUT VOLTAGEUnless specified: 0 = GND; 1 = High (or Floating).T A = 25°C, VCC5V= 5V, VCC2= 5V, 4-Phase operation.VCCCORE VID4VID3VID2VID1VID0(VDC) 11111Output Off 11110 1.1 11101 1.125 11100 1.15 11011 1.175 11010 1.2 11001 1.225 11000 1.250 10111 1.275 10110 1.3 10101 1.325 10100 1.35 10011 1.375 10010 1.4 10001 1.425 10000 1.45 01111 1.475 01110 1.5 01101 1.525 01100 1.55 01011 1.575 01010 1.6 01001 1.625 01000 1.65 00111 1.675 00110 1.7 00101 1.725 00100 1.75 00011 1.775 00010 1.8 00001 1.825 00000 1.85July 25, 2000BILL OF MATERIALItem Qty Reference Value Manufacturer19C2,C4,C11,C19,C20,C28,C29,C37,C39 1u,10V X7R, AVX (818)883-7606 21C310uF, 6.3V Al. Elec.,Murata39C5,C12,C14,C17,C18,C21,C22,C26,C2722u, 10V Murata (512)250-5082PN #GRM235Y5V226Z010 45C6,C7,C15,C24,C321uF, 16V Murata,Al. Elec.51C8330uF, 16V Nichicon63C16,C25,C3310u, 16V Murata71C40.01u Murata81C42.022any92C45,C49.01Murata,X7R101C46.001Murata114C50,C51,C52,C531nF any121C541000uF Murata,Al. Elec.138D1,D2,D3,D4,D5,D7,D9,D11SS12(1A)SS32 (3A)General InstrumentsGeneral Instruments141J1INPUT154L1,L2,L3,L4.6uh,12A Falco (305)662-7276PN #T02508164Q1,Q4,Q7,Q10IR7811Int. Rectifier174Q3,Q6,Q9,Q12IR3101D2(Alter.)FDB7030BL Int. RectifierFairchild Semiconductors181R110Dale,any199R2,R10,C13,R14,R17,C23,R33,C34,C430any204R4,R12,R16,R23 1.5 (or zero)any214R5,R6,R7,R3810K any224R8,R9,R11,R1322any231R18SEL any231R19100any241R20 2.2k any251R2215k any261R24300k any275R25,R40,R41,R42,R43 2.2any281R26open any294R27,R28,R29,R30 51, 1/4W, 1206, 10K Dale306R31,R32,R34,R35,R36,R37TBD(used at light load,contact factory)any311S1Vout/Clk switch C&K(800)cal-swch324U1,U3,U4,U5SC1405B/SC1405TS Semtech (805)498-2111 331U2SC1146CSW Semtech (805)498-2111 341U6LM358anyUnless otherwise noted, all resistors are 1/10W, 5%, 0805 and all capacitors are 20%, 50v, 0805.July 25, 2000FUNCTIONAL DESCRIPTIONThe SC1146 is a programmable, high performance,multi-phase controller designed for the most demand-ing DC/DC converter applications in which transient response, space, input ripple current and component form factor and cost are paramount. The SC1146 is configured to operate with external MOSFET drivers,such as the SC1405, in high efficiency synchronous applications (See Evaluation Board Schematic).The SC1146 based dc/dc converter consists of four buck converter controllers integrated and synchro-nized. The high clock frequency allows for smaller in-ductor values and miniature surface mount, low induc-tance output capacitors. Since each stage has ¼ the output current, the conduction losses in each stage is reduced by a factor of 1/16. Precision active trimming ensures 1% matching of duty cycles among phases,thus ensuring the heat and component stress is shared equally. The SC1146 may also be configured in asyn-chronous mode by using buffer transistors.DECODER/BIAS GENERATOR/PWM CONTROLLER The 8 MHz clock is divided down to 2 MHz for four phase operation by the clock decoder. The start of the output pulses are time shifted 90 degrees by the de-coder with respect to each other. The Bias Generator generates the ramps to each phase by a precision trimmed current source and on-chip capacitors. The decoder, which is synchronized to the bias generator via the master clock, phase shifts the ramps and en-ables the PWM controller sequentially. A resistor from R REF pin to FBG programs the frequency and ramp time.Clock Freq = (8.2K/Rref) *8MhzThe ramps are then compared to the error amplifier out-put at the high speed PWM comparator inputs. The con-troller outputs are buffered versions of the comparator outputs.ERROR AMPLIFIERAt the heart of the controller is an ultra-fast, transcon-ductance error amplifier. Since the output inductor val-ues can be selected to be a minimum, usually less than a micro-Henry, the delays due to inductor ramp time are minimized during transient load recovery. The higher frequency of operation also allows use of much smaller capacitance on the output. This means that the dc/dc converter output capacitors “hold time” is less. The error amplifier must therefore respond extremely fast“Recover the Fort” after a transient. The SC1146 error amplifier recovers to its normal duty cycle after applica-tion of a full load transient within 2 usec maximum,(largely dependant on supply quality) and usually within 1usec. This minimizes undershoot and overshoot during application of a transient.THEORY OF OPERATIONFig. 2: The four Gate Drives firing 90° out of phase.V OUT = 1.0V, I OUT = 10A,Vcc2=12V, Asynchronous operation.Fig. 1: V OUT Ripple, V OUT = 1.0V, I OUT = 30AJuly 25, 2000The error amplifier has two inverting inputs, one for the High Range, (VID4 set to logic high) and one input for the Low Range. The effective gain of the error ampli-fier stays constant in both ranges keeping the loop gain constant regardless of output voltage range.BANDGAP REFERENCE/SOFT STARTThe precision internal bandgap reference provides astable, temperature compensated 2.05 V reference for the error amplifier’s non-inverting input, the DACREFfor the VID digital to analog converter, the under-voltage lock-out circuitry as well as the reference for the Bias generator current sources. The error amplifiers non-inverting input is connected to the bandgap reference through a 3Kohm resistor, which is also externally con-nected to a soft-start capacitor via the BGOUTpin. Upon application of power, the non-inverting input of the er-ror amplifier is held low for a short time, set by the RC product of the soft-start capacitor and 3Kohm, allowing for the decoder and PWM controller to settle. This pre-vents any harmful output voltage overshoots upon start up or after a converter shut-down (as a result of over-current or the enable pin pulled low). The non-inverting input then ramps up according to the RC time constant allowing gradual rise of output voltage.OVER-CURRENT COMPARATORThe SC1146 has an internal over-current comparator designed to sense current in the input supply path. The comparator inputs have a high common voltage range thus allowing operation under all possible volt-age/current combinations. The output of the compara-tor pulls the BGOUT(soft start) pin low thus disabling the error amplifier and causing the PWM outputs to enter minimum duty cycle mode, regulating the output at a minimum voltage. A current sense trace may be used as the current sense resistor. This will utilize the trace as input filter inductor, thus preventing conducted emissions to input supply. For details of programming the overcurrent comparator, refer to SC1144-EVB user manual.SC1146 Special features:The SC1146 is a special version of the originalSC1144, 4-phase PWM controller, with the latestVRM9.0 VID codes which allow programming lower output voltages required by the latest Microprocessors.Also a +12V supply is no longer required. The VCC2and PWRGOOD pins can be connected to Vcc5v. This eases the connection to “5V-only” MOSFET drivers, such as the SC1405. The DRVs will swing to Vcc5v, eliminating the need for +12V to +5V level shifting.There is no Under-Voltage Lockout on VCC2.ERROR AMPLIFIER CONT.Fig. 3: Transient response, Top trace, Current sense 8A/div @ 30A/usec. Bottom trace, VOUT.Fig. 4: Transient response, Top trace, Gate DriveBottom trace, Transient current 16A/div @ 30A/usec.July 25, 2000An evaluation board is available which may be ordered directly from the factory. SC1146/1405EVB is a DC/DC converter utilizing the SC1146 four-phase controller in a high current synchronous application. The evaluation board is intended as a guideline for board design, layout and to assess key performance parameters, such as tran-sient response, thermal stress management and input and output ripple considerations. The SC1146EVB includes a DIP switch for mode/voltage selection as well as qualified selection of components for the SC1146 operation. The SC1144EVB user manual contains useful general applications information applicable to SC1146 and may be accessed from our website at .OUTLINE DRAWING - SO-24ECN00-1215。