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Buck regulator design I am putsin with buck regulators now making my own (attached circuit) I am using a p-fet instead of the switch shown in the schematic. The gate of the pfet is connected to a 220... |
Tuesday, 23 September 2008 - 15:55 |
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Can i use a Zener when driving a fet? This fet http://www.fairchildsemi.com/ds/... Shows the Vgs max of 3V the plot shows using a 3V zener on the signal line using a 5V output from avr pin. Is this ok to do or should... |
Friday, 19 September 2008 - 07:35 |
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Communicating on power lines I am working on a project to communicate with remote LED lights using just the positive and negative DC power feeding the lights. Attached is a schematic of my circuit designed... |
Sunday, 14 September 2008 - 00:37 |
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New to coding in C having debug execution problems I decided I should learn how to code in C since I want to learn the avr32's. Since there is more help and tuts on the 8bit stuff i figured i would buy smilies book and butterfly... |
Wednesday, 20 August 2008 - 07:38 |
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Another 8BIT programmer trying to get up to speed with 32bit I have waited a year before delving into the 32 bit world. I took a few days and tried for 2 days to get a handle on what to start with and then thought perhaps I will wait... |
Monday, 18 August 2008 - 01:26 |
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Nasty negative voltages on PWM pin Long time no post I have been on a break. Back at it again with a new design for my simulated rotating light. This time it is going to rotate though. I found some 4 RPM motors... |
Wednesday, 16 April 2008 - 08:28 |
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External capacitor timer I am working on a project that will use a button battery. I have selected the Tiny13V using 128k internal clock with a clock prescaler of 256. If I use idle mode and the timer... |
Monday, 14 January 2008 - 03:08 |
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I am having a problem with phase corrrect PWM mode 5 Tiny45 The scope and debugger show The OC0A pin set high the first compare match TCNT0=OCR0B and then clears it at top=OCR0A and never sets it again although at OCR0A it reverses and... |
Wednesday, 31 October 2007 - 05:59 |
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JTAG Speed and number of breakpoints I am now using ont of the Futurlec et-AVR mega128 boards and their JTAG programmer, it was 10 x less money than the AVR jtagIce markII I have in my programmers drawer that I never... |
Friday, 19 October 2007 - 04:15 |
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Question on Sram datalines I am using a W24129A static ram, the datasheet does not show how to connect the microcontroller to the sram chip and i have just directly connected the pins. Right now before I... |
Tuesday, 16 October 2007 - 09:35 |
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Some trouble with tiny2313 250kbps at 20MHZ USART 20MHZ crystal tiny2313. I am having trouble using the tiny2313 USART to read output from the PC, two problems. Using the code below, I get two bytes output when i am only sending... |
Tuesday, 16 October 2007 - 01:20 |
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Com port and serial IO with AVR question I am having a problem with opening a com port from windows when the serial port is not connected to anything. When I connect it to my stk500 even if it is off the open commands... |
Tuesday, 2 October 2007 - 08:42 |