KlausST
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Yesterday, 22:11KlausST replied to a thread Light dependent resistor(LDR) with very low resistance in Analog Circuit DesignHi, Add a couple parts and a Mosfet and it could be milliohms. Or go to a LDR factory and ask them to design an LDR with your requirements. I...2 replies | 31 view(s) -
Yesterday, 18:36Hi, I recommend to use a properly designed filter. RC, LC, damped LC... You say you use the EPOT as audio volume control. 64 steps of linear...8 replies | 111 view(s)
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Yesterday, 18:28Hi, This calculation usues the continous motor power. But one needs to calculate the energy of the rotating mass. We do not know this, the...11 replies | 473 view(s)
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Yesterday, 16:58Hi, A search for "cutoff frequency" should immediately show the right place. Then there is a remark with "No 13". (Not a good solution in my...8 replies | 111 view(s)
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Yesterday, 11:26Hi, we donīt know your frequency of interest. But you can consult the datasheet on your own: "Cutoff frequency". Klaus8 replies | 111 view(s)
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Yesterday, 09:31KlausST replied to a thread Is there any Serial Driver at the speed 9600 for arduino uno (Atmega 328) in MicrocontrollersHi, Itīs impossible to help without more information. What have you done so far? Klaus5 replies | 189 view(s)
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Yesterday, 08:58KlausST replied to a thread Possible Signal Integrity problem in a 100MHZ CLK in Analog Circuit DesignHi, That is why one creates impedance controlled traces. Without knowing the parameters for your trace impedance it's hard to help. (Trace width,...2 replies | 60 view(s)
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Yesterday, 07:54Hi, It's very unusual. But now I recognized that "CCW/CW" is mentioned on the motor. I never have seen this before. If there is no mechanics...4 replies | 101 view(s)
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Yesterday, 07:33Hi, I would be very surprised if the motor (even with reversed connections) runs in two directions. Klaus4 replies | 101 view(s)
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13th December 2018, 11:04KlausST replied to a thread [SOLVED] parts without specifications in Elementary Electronic QuestionsHi, under "absolute maximum ratings" there is * 2W @ TA = 25°C and * 30W @ TC = 25°C --> If you keep on this, then you are on the safe...1 replies | 77 view(s)
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13th December 2018, 08:06KlausST replied to a thread Is there any Serial Driver at the speed 9600 for arduino uno (Atmega 328) in MicrocontrollersHi, You never heared about RS232? It seems impossible to me. Where did you try to find an answer on your own? And how? Learn how to:...5 replies | 189 view(s)
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12th December 2018, 15:42KlausST replied to a thread A question about multiplication of gain_bandwidth in closed loop opamp in Analog Circuit DesignHi, You almost answered it on your own. you say: gain drops by 20dB/decade. Now a decade is a factor of 10 and 20dB is a factor of 10, too ...2 replies | 131 view(s)
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12th December 2018, 13:50KlausST replied to a thread Is there a practical way to tell whether a noise is CM or DM type when using a scope? in Elementary Electronic QuestionsHi, Yes - capacitively coupling - to the AC side. This is the only way in your case for common mode noise on the DC side .. referenced to...14 replies | 376 view(s)
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12th December 2018, 13:05KlausST replied to a thread Is there a practical way to tell whether a noise is CM or DM type when using a scope? in Elementary Electronic QuestionsHi, Unlikely. An SMPS usually has at least two input terminals and two output terminals. thus 4 in total. Then there may be additionally:...14 replies | 376 view(s)
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12th December 2018, 10:38KlausST replied to a thread Is there a practical way to tell whether a noise is CM or DM type when using a scope? in Elementary Electronic QuestionsHi, if your power supply has only two terminals (like a battery) then it canīt generate commom mode noise. Common mode noise also needs a...14 replies | 376 view(s)
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12th December 2018, 09:12KlausST replied to a thread Calculating cable current carrying capacity in Miscellaneous EngineeringHi, http://lmgtfy.com/?q=wire+current+capacity Klaus5 replies | 211 view(s)
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12th December 2018, 07:37Hi, It just says: * The difference between OTA and OPAMP is not the "folded cascode". * The difference is the "output stage". Klaus6 replies | 174 view(s)
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12th December 2018, 07:22KlausST replied to a thread Battery charging circuit using opamp, V+ not equal to V- in Analog Circuit DesignHi, You used a N-CH Mosfet. It needs higher voltage at gate than at it's source. (Positive V_gs) to become conductive. The higher the V_gs, the...3 replies | 148 view(s)
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12th December 2018, 07:01Hi, Why this? Without further explanation this makes no sense to me. So what's your actual: * SPI clock frequency * block size * average...5 replies | 227 view(s)
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11th December 2018, 19:03Hi, you mean transimpedance amplifier? What supply voltage? What output voltage range? What load current / load_impedance? What...1 replies | 107 view(s)
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10th December 2018, 22:07Hi, Class D audio amplifiers with 100kHz bandwidth are hard to find. And as the OP states the load impedance is 100 Ohms, not 8 Ohms. Klaus7 replies | 220 view(s)
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10th December 2018, 02:42KlausST replied to a thread Weller TCP-01 soldering iron question / problem with thermal switch in Miscellaneous EngineeringHi, Afaik, you can have the tip for different temperatures. Thus you can use a thermometer and check the tip tempeeature. I assume - when...10 replies | 389 view(s)
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9th December 2018, 19:05KlausST replied to a thread [SOLVED] what is the purpose of this layer over PCB ? in PCB Routing Schematic Layout software and SimulationHi, * Mechanical protection * moisture protection * dirt protection ... Klaus3 replies | 245 view(s)
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9th December 2018, 12:52KlausST replied to a thread Tektronix 4000 series oscilloscopes - question about measurements and statistics in Elementary Electronic QuestionsHi, I assume the scope comes with a user manual. Did you read it? Makes sense. Do you know what "standard deviation" is? There are more than...4 replies | 315 view(s)
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9th December 2018, 12:30Hi, You did not draw a circuit to find out how it works... Do this. --> a diode is a passive device, it is impossible to generate inverted...5 replies | 401 view(s)
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9th December 2018, 12:27Hi, So why don't you do an internet search for "RF switch" "RF relay" "RF MUX"...? I assume there are ready to buy solutions available. You...6 replies | 257 view(s)
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9th December 2018, 12:15Hi, There are external UART devices. ******** Without external UARTs you may use: * diodes + pullup to create "wired AND" * AND gates * three...5 replies | 401 view(s)
About KlausST
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