KlausST
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Yesterday, 22:53Hi, It's done many million times: and audio speaker and an audio amplifer. So why don't you use this system? Klaus1 replies | 45 view(s) -
Yesterday, 06:37KlausST replied to a thread Electronic Load Circuit for 380 Vdc (2A to 3A) Power Supply in Service Manuals, Requests, Repair TipsHi, In which regard? Cost --> no Ruggedness --> no Size --> no Power dissipation --> no Klaus5 replies | 147 view(s)
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Yesterday, 06:32Hi, A Mosfet does not know about it's counterpart, a Mosfet dies not know about GND potential (as long as none of the three legs is directly...6 replies | 157 view(s)
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Yesterday, 06:05KlausST replied to a thread Impact of parasitic capacitance and parastic inductance on DC and crystal oscillator in Electromagnetic Design and SimulationHi, A capacitor at the DC power supply is a benefit in either case. It stabilizes the supply voltage while it has no negative influence on...4 replies | 183 view(s)
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Yesterday, 06:01Hi, If CSOUT output impedance really is 100k, then an external capacitor will reduce output bandwidth .....then I have to admit that an Opamp as...13 replies | 822 view(s)
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Yesterday, 05:52KlausST replied to a thread P mosfet turns on/voltage at drain during powerup in Elementary Electronic QuestionsHi, I often have a capacitor between gate and drain. Especially for a power distribution switch it prevents from fast switch ON of the load. In...5 replies | 201 view(s)
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21st August 2019, 23:57Hi, Your current measurement: First: standard signal flow at a schematic schould be from left to right. The first Opamp (right side in your...13 replies | 822 view(s)
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21st August 2019, 20:48Hi, A similar discussion a couple of weeks ago....18 replies | 285 view(s)
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21st August 2019, 20:40KlausST replied to a thread P mosfet turns on/voltage at drain during powerup in Elementary Electronic QuestionsHi, * defective scope probe * bad solder joint * wrong scope setup AC/DC Klaus5 replies | 201 view(s)
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21st August 2019, 06:51KlausST replied to a thread Impact of parasitic capacitance and parastic inductance on DC and crystal oscillator in Electromagnetic Design and SimulationHi, With DC ... neither capacitance nor inductance has an effect. But then you talk about oscillator ... which can not be DC. So are you...4 replies | 183 view(s)
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21st August 2019, 06:43KlausST replied to a thread [SOLVED] Is this a good circuit that I have designed? in MicrocontrollersHi, glad to see it's solved. In case this is a high volume project and you want to safe cost, you may optimize: Since the MAX7219 is able to...5 replies | 202 view(s)
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21st August 2019, 06:17Hi, B needs a turn ON delay A needs a turn OFF delay Klaus1 replies | 58 view(s)
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20th August 2019, 20:49KlausST replied to a thread Real time voice encryption/decryption with FPGA in PLD, SPLD, GAL, CPLD, FPGA DesignHi, You need on the receiver side a FIFO and some kind of PLL to synchronize to the incoming data stream. Klaus6 replies | 287 view(s)
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20th August 2019, 06:56KlausST replied to a thread Use of this resistor in oscillator of Stm32f429zit6 Discovery development board in MicrocontrollersHi, With the use of this resistor you may optimize on start up time or you may optimize on power consumption. The resistor is not mainly...1 replies | 105 view(s)
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19th August 2019, 21:39Hi, You never mentioned analog inputs before. What do you need them for? Klaus5 replies | 214 view(s)
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19th August 2019, 21:28HI, Indeed even Rail to Rail Opamps don't go to the rails. There always is a dropout voltage ... in this case 100mV to each rail. Klaus7 replies | 284 view(s)
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19th August 2019, 06:32Hi, PLC .., I have not much experience.. but a Siemens LOGO! with an I/O extension should work. There are different types available. Some run...5 replies | 214 view(s)
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17th August 2019, 17:42KlausST replied to a thread LTspice Wolfspeed mosfet model doesn't seem to be working in Software Problems, Hints and ReviewsHi, try to connect V1 Minus directely to GND instead of KS. Klaus3 replies | 154 view(s)
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17th August 2019, 17:32Hi, For 0.001 you may multiply with 1000, then do the rounding to integer, then divide by 1000 For 0.002 ... multiply with 500 For 0.005 ......33 replies | 1580 view(s)
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16th August 2019, 06:47Hi, Maybe it's time to start to give useful and complete informations. It's neither clear what you need , nor what voltages and currents you are...8 replies | 398 view(s)
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15th August 2019, 21:07Hi, Thank you for the feedback. I made a mistake. I should be: A 9V battery and a 1.5V battery. Connect the PLUS of the 1.5V battery to the...8 replies | 398 view(s)
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15th August 2019, 20:32Hi, At high frequencies you most probably see the capacitive coupling from base to emitter. I assume this also works without supply. It's...1 replies | 120 view(s)
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15th August 2019, 09:15KlausST replied to a thread Why Z and Y matrices must be pure imaginary for reciprocal lossless N-port junction ? in Elementary Electronic QuestionsHi, Maybe I don't understand the question. My answer is: for "lossless" you need "imaginary", because "real" means "loss". Imaginary: pure...2 replies | 229 view(s)
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15th August 2019, 09:10Hi, You really ask if there are screw terminals? For sure there are. They are used for decades of years now and million times every day. ...4 replies | 186 view(s)
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15th August 2019, 07:51KlausST replied to a thread How to add the outputs of a different voltage double ciruits in Analog Circuit DesignHi, Omit the upper GND (symbol). Connect the lower end of R1 with the upper end of R1. Klaus3 replies | 229 view(s)
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15th August 2019, 07:42Hi, What's the problem? Mathematics? Just subtract the values: Example: 9V - 1.5V = 7.5V Hardware? Reverse connect the second one: example: A...8 replies | 398 view(s)
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15th August 2019, 07:35Hi, What exactly is the problem? Either each cable hase a 3 pin connector. D+, D-, GND. And all D+ are joined...as weel as D- and GND Or you...4 replies | 186 view(s)
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15th August 2019, 07:26Hi, Please tell us what is wrong. Tell us the result and tell us carry. Show us your hardware, schematic, code, or whatever you have. ...3 replies | 456 view(s)
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14th August 2019, 21:37KlausST replied to a thread LTC4020 not regulating, blowing sense resistors during debug in Power ElectronicsHi, Did you try to use the I_limit feature? Try it. Start with very low current ... then increase. Show us your PCB layout and a detailed...6 replies | 276 view(s)
About KlausST
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