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For read operation, we need a precharge circuit to charge the bit lines. I know the precharge circuit for two bit lines. My question: How the precharge circuit for single bit line would look like???
Hi I have a problem with my spice codes. When I add the precharge circuit, the error appears. I have this problem only with finfet model. With other types, it works. .option accurate=1 method=gear delmax=30p .OPTIONS ITL1=100 .OPTIONS ITL4=100 .OPTIONS RELTOL=.01 .OPTIONS DIGSTEPBACK .OPTIONS ABSTOL=1p VNTOL=1u .OPTIONS METHOD=GEAR
I just designed this small circuit (reusing some components already in the flyback circuit). This charges the Vdd capacitor with 2 mA until it reaches 10 V. If the auxiliary winding is providing power to Vdd it should reach 14 V --> precharge circuit off. I chosed a PNP transistor that should withstand the peak power during (...)
Hi I need to design a circuit to generate 1.5v~2.4v precharge voltage for large cap load(10pf). But the working environment is too tough:1.6v~6v, temperature:-50C~150C. Besides the time response should not too slow(10ns~20ns). Any suggestion or comment on it? thanks in advance! regards, joran76
hi In Domino circuit, there are two phases 1.precharge phase 2.Evaluation phase if u take a inverter, between pmos and nmos u'r domino logic will be there. MODL is basically used for iterative purposes. You can read this concepts in Industrial cmos design techniques by Uyemura
Dear all, The bypass capacitor of the LDO makes a very long start-up time. I want to design a LDO which can start-up within 40us, so I need a power-on circuit to precharge the bypass capacitor. Could you give me some advice in how to design a power-on circuit? Thank you very much! B. R. Ken 20070626
It realy P*&$$s me off that Sky sends a pulse in the video signal that prevents recording the film and sport. I know there is units that will remove them but does anyone know what they do to the signal and any circuit to make one.
Hello, i search for my amp project a preamplifer circuit with ultra low THD, this circuit are including the tone control and he make a Vu = 10 for the amp and i will use ops. Have everyonea idea for a circuit the have a ultra low THD? Thanks a lot Dark Angel
Need information how to make the PIC circuit with connector to an programmer. Programming should work even if the PIC circuit has power switched on. But should also be possible if the power of the PIC board is not availabel. I already have good info on programmer. Any one has a proven circuit design that works well?
Hi, I'm searching for the schematics of the I2K power inverter because the official download site seems to be down, so if you have it can you share ? I'm also searching for an efficient overcurrent / short circuit protection by measuring the DC bus Current (each phase of my three phase power inverter have an 100uH inductor in serie with it)
Does anyone have x.10 interface circuit? and or circuit that can send signal into main(AC) line? please suggest. thanks a lot.
Hello everybody !! I serach for a "PWM-circuit" for controlling a "Buck/Boost-Converter" !! Does anybody have a circuit !! Thank you ***************************************** Please don't reply unless you have useful information to add on this post. Any other replies are always welcome via PM.
Hi all I need a circuit to program the Atmel MCU AT89C1051 and AT89C2051. Can any one help me.
Anyone designed a circuit for CCD array to ADC? Looking for advice or ref design. I am using a sony ILX5xx series 5k pixel CCD, need to do an A/D conversion and get the digital data out. thanks Ahgu
Does anybody have some experience with designing a Snubber circuit and how to build them ?? I need one for a Boost Converter (fs=100kHZ, I~20-30A) !! Thank you very much
I need to design a digital circuit that will output logic 1 and lit an LED when the input analog voltage is within a certain range (say 2-5 volt) and will output logic 0 elsewhere. A schematic would be very helpful. Thanks in advance!
Has anybody a schematic for an easy and cheap working circuit, which turns of the light from a 230VAC/100W-Bulb by using a triac. Time for getting dark should be more than 2-minutes. P.S.:I´ve got no equipment for microcontroller-programming
I have an optical sensing system that uses three LEDs (LED1, LED2 & LED3) as transmitters. The lights from these LEDs are detected by three Photodiodes (PD1, PD2 & PD3). The signals from the PDs are passed through an Analog circuit that is common to all. Then the analog output is passed through three different digital circuits Dig1, Dig2 & Dig3 for
hello friends, This time I'm looking for an AC (60Hz) rejection circuit for a DC voltimeter any sugestions?? regards, 2000
I want to demonstrate a coupled oscillator circuit at graduate level. Can any one suggest some thing?
Who can give me a circuit netlist of 32768 Crystal Oscillator for spice simulation! My circuit cann't get up!
How can I simulation circuit with Xilinx Foundation 4.1? (there isn't any package) I remember that in Fondation 2.1 it exists... How can I do ? ***************************************** Please don't reply unless you have useful information to add on this post. Thanks
i'm looking for a circuit or a pic program to convert from irda to rs232! thanks! ***************************************** Please don't reply unless you have useful information to add on this post.Thanks
I want to design a automatic for automatic switch 220/110V,and this circuit will be low price and miny volume.who can help me. ***************************************** Please don't reply unless you have useful information to add on this post. Thanks
When I design PA,I find that using the typical circuit in the datasheet sometimes lead to bad result.Furthermore,the recommended microstrip circuit always show it's poor performance in EDA simulation.How do this happen?Would you mind tell me how I can get the correct circuit of PA design. By the way,the PA transistor I used were from (...)
Hello. My CATV firm use just video inversion for scrambling. I'm searching for a circuit to invert video image. I will insert the ciruit between VCR and TV. Could you plz inform me the circuit for video inversion? ***************************************** Ple
Hi The focus of our group is designing analog circuits for high integration. We have emphasized analog CMOS design techniques because an increasing portion of today's integrated circuit functionality is being performed in the digital domain by VLSI circuits implemented in a CMOS technology. Achieving high integration requires both all the (...)
i'm looking for a digital logic simulator for a small project of mine: should be a program easily interfacable from c (because the c code will generate the electronic circuits). in fact i'd prefer to have the source code and i probably will end up writing my own if i find nothing suited for my task. does anybody know about such a simulator (no spic
Hi everyone. I need a PLL circuit example. Does anybody have useful information about PLL? THX.
Hello friends, Does anyone know a circuit that really reaches 0V in a 0 - 30 V variable supply using LM723? regards, 2000
Does anybody have some pdf book about rf circuit design?
Looking for circuit diagram for Sharp fax F3600M. Mvbrgds Ludvig
Who can tell me where can find the audio amp circuit ( use 2k ~ 20k HZ) ?
Hi! I need a SMPS circuit for 90 to 275 VAC input and with output of +/- 7.5 VDC 500 mA. Could someone help me by providing schematic drawing and bill of materials for this. Thanks Bye!
Well I'm attempting to integrate in circuit programming into my application and I was wondering whether anyone has done this before. My problem is interfacing high voltage in circuit serial programming for PIC16F877 via pin PIN 1, RB6 and RB7 at the same time use this pin for another application. I have considered using jumpers to switch affected p
I don't understand the precharge? I know it is used to closed a row in bank, wrt to the active? But what is its purpose in the low-level electronics? Also what is its usage? do I have to do everytime I do a read in a row and want to read the next row, I have to precharge the first row first and then move to the second row? or can I just ignore i
This is my BS project which is due in a couple of days,it uses TINA to optimize a circuit! if anyone wanted this project ,just drop me a line
Any one have a schematic for an active low loss circuit to combine 2-3 UHF aerials and signals.
anyone has electric field meter circuıt design? everybody selling but I can' find a circuit :roll:
Hello all. Does anybody arround know about any simple, easy to build osciloscope circuit that can be interfaced to a pc (serial or parallel ports)? A homemade sampling head (not real time) would already be usefull.... My old osciloscope just stoped working and I would like to build something reasonable that could replyce it :D Thanks to all.
Hello, i need hartware project for PSoC In circuit Programmer schematic and PC software THX, K2
I want to design power on-off circuit using tact switch. Please give me some hints. Thanks a lot! :roll:
Hi I want an on/off(with one push button) with auto power off circuit? do you have a sch?
where can i find p16f877 programmer circuit?
Have you one? I need for use in a telephonic circuit, and it must have the telephonic band width, 300 to 3400 hz, 0 to -2.5 dB of attenuation, and for 100Hz it must be better than -30dB. Thankz :D
I need the control circuit..... so if u have and idea...... an interesting article that u want to share....... don't doubt to email me... I know that in the market exist several CI that can do the job..... but i would like to do it in a analog form. for your time thanks Atte. Attrib
Can anybody help me with a closed loop PI controller circuit for velocity control ? Analog circuits welcome. The output signal has to vary from -10V to 0 V for a RPM feedback of 0 to 3.6VDC. Thanks Raghu.
Hi: Someone know where can find the circuit which transfers the PCMCIA interface to the ATAPI(IDE) interface? Thanks.
Hello world has anybody a circuit of an revolution counter (0-1000 RPM) with microcontroller (incl software) Thanx Shorty
Hi, I want to build a circuit that when i start it the led will stay off about 30 sec. then it wil illuminate 1 min. and then it will go will lock the start button i mean when i give another pulse it will not accept the second one.I tried to build it with 556 but nonsense. Please hellllpppp!!!