KlausST
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Today, 00:21KlausST replied to a thread Ultra low-power timer to make a power saving circuit in Analog Circuit DesignHi, Why do you ask? Page 159 specifies supply voltage range....and it starts at 3V. But if you want lower supply voltage, then just choose...17 replies | 231 view(s) -
Yesterday, 22:51Hi, A fully agree with FvM. The first results of a simple internet search "simm sdram specification" leads you the big manufacturers... and...4 replies | 74 view(s)
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Yesterday, 21:23Hi. Why don't you draw the dual supply? ... when you want to discuss about... Klaus48 replies | 904 view(s)
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Yesterday, 21:14Hi, If you are the designer, the you should give specifications. Otherwise we could guess a hundred posts.... Klaus4 replies | 74 view(s)
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Yesterday, 20:01Hi, There is no answer, because there is a lack of information. * what do you define as 0V_node? * where is +IN connected. --> draw a...48 replies | 904 view(s)
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Yesterday, 18:30KlausST replied to a thread Ultra low-power timer to make a power saving circuit in Analog Circuit DesignHi, In post#10 you have chosen Atmega48. --> Thus in post#11 I referred exactly to Atmega48 datasheet. Now you choose another AVR ... and...17 replies | 231 view(s)
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Yesterday, 12:17KlausST replied to a thread Ultra low-power timer to make a power saving circuit in Analog Circuit DesignHi, I recommended * 32kHz --> 25uA @ 3V active * most of the time idle --> 15uA @ 3V For sure, if you don't follow my recommendation,...17 replies | 231 view(s)
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Yesterday, 10:37KlausST replied to a thread Ultra low-power timer to make a power saving circuit in Analog Circuit DesignHi, Not clear how you come to 12uA... There are low power microcontrollers. Like AVR picopower, maybe other brands draw even less power. When...17 replies | 231 view(s)
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Yesterday, 03:25Hi, Just to clarify: When you violate absolute maximum ratings, then immediately permanent damage may occur. When you want to look for...48 replies | 904 view(s)
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Yesterday, 02:11KlausST replied to a thread Ultra low-power timer to make a power saving circuit in Analog Circuit DesignHi, 20uA for a CMOS devuce is pretty high. But it's not the typical current, but the maximum current. Nexperia 74LVC163 datasheet says 0.1uA...17 replies | 231 view(s)
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15th February 2020, 22:04KlausST replied to a thread Glow LED on specified counter values 0-500 in 89c52 uC in MicrocontrollersHi, Is the same as if ( (Counter % 15) == 10) LED1 = 1; Klaus28 replies | 504 view(s)
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15th February 2020, 21:58Hi, A question.... * Do you want to write code on your own? --> then start with an idea, a piece of paper, a pencil, a flow chart.... * Or do...2 replies | 131 view(s)
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15th February 2020, 21:38KlausST replied to a thread Ultra low-power timer to make a power saving circuit in Analog Circuit DesignHi, Definitions of "Precision" and "duty cycle" can be found in the internet. A "signal" should be defined somehow... (I assume it's a digital...17 replies | 231 view(s)
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15th February 2020, 21:02KlausST replied to a thread Glow LED on specified counter values 0-500 in 89c52 uC in MicrocontrollersHi, (Counter - 10) % 10) is the same as (Counter % 10) (Counter - 15) % 15) is the same as (Counter % 15) Klaus28 replies | 504 view(s)
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15th February 2020, 18:24KlausST replied to a thread Ultra low-power timer to make a power saving circuit in Analog Circuit DesignHi, Give specifications, like * expected current consumption ... but please not "as low as possible" * precision, * duty cyle, or how the...17 replies | 231 view(s)
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15th February 2020, 11:14KlausST replied to a thread Basic 12v Battery VOLTAGE METER, more resolution needed in Elementary Electronic QuestionsHi, And this I think exactly is the point "why". If the voltage drop (and power dissipation) is not done externally, then all the (same)...20 replies | 1276 view(s)
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15th February 2020, 11:08Hi, I agree. Then I'm unusual, too ;-) Studying the function, doing maths, deciding specifications, reading, reading again, doing (hand...48 replies | 904 view(s)
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15th February 2020, 09:07KlausST replied to a thread Glow LED on specified counter values 0-500 in 89c52 uC in MicrocontrollersHi, As "counter" is used both in main and isr, it should be declared "volatile". If "counter" needs multiple access to be processed (i.e. 16...28 replies | 504 view(s)
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15th February 2020, 08:50KlausST replied to a thread Basic 12v Battery VOLTAGE METER, more resolution needed in Elementary Electronic QuestionsHi, And sometimes it's useful to take a photo from the component's side, then mirror it on the PC and print it out. This way you see the...20 replies | 1276 view(s)
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15th February 2020, 08:35KlausST replied to a thread Glow LED on specified counter values 0-500 in 89c52 uC in MicrocontrollersHi, In the given code I miss how the LEDs are set to "0". Klaus28 replies | 504 view(s)
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15th February 2020, 08:27KlausST replied to a thread Basic 12v Battery VOLTAGE METER, more resolution needed in Elementary Electronic QuestionsHi, Thanks. Yes, I meant R7. Sorry for that. I correct it in the original post to avoid further confusion. And as Brad says: 5W rated...20 replies | 1276 view(s)
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15th February 2020, 01:59KlausST replied to a thread Basic 12v Battery VOLTAGE METER, more resolution needed in Elementary Electronic QuestionsHi, R7 is already marked "2W". You must not ignore this information. (EDIT: originally I wrongly wrote "C7") Did you install a suitable...20 replies | 1276 view(s)
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14th February 2020, 22:13KlausST replied to a thread Needing to set up an oscillator circuit with frequency adjustment that can drive 8led in Analog Integrated Circuit (IC) Design, Layout and FabricationHi, And what exactly is your question now? We just should do all homework for you? Klaus1 replies | 90 view(s)
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14th February 2020, 21:53KlausST replied to a thread Fast amplifier using one stage OP AMP in Elementary Electronic QuestionsHi, There are standard Opamps that will be suitable. Just use the selection guides provided by Opamp manufacturers and distributors. For...3 replies | 246 view(s)
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14th February 2020, 21:23Hi, Isn't that obvious? In post#20 I clearly showed you 3 violations. Then you correct 1 of them... --> then ... simple mathematics: 3...48 replies | 904 view(s)
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14th February 2020, 08:55Hi, I'm not familiar with the scope you are using. Does it show "1s/div" and "2s/div"? --> If so, then it's most likely not the C9 problem. ...5 replies | 226 view(s)
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14th February 2020, 08:36Hi, Is it a new design, or do you try to repair an old circuit? If "repair" ... I assume C9 is dried out and needs to be replaced. Klaus5 replies | 226 view(s)
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14th February 2020, 08:32Hi, Your picture does not show the exact "capture circuit". Thus we can't verify whether it is suitable or not. Also we don't know how you read...3 replies | 171 view(s)
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14th February 2020, 07:55Hi, But the Opamp in most of your cases is overdriven. There are many Opamp circuit tutorials, even videos in the internet. Use them, they...48 replies | 904 view(s)
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13th February 2020, 23:14Hi, For sure you know that one byte has a limited range of 0...255 (unsigned). This really is very basic knowledge. --> use two or more bytes....4 replies | 202 view(s)
About KlausST
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