KlausST
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Today, 09:58KlausST replied to a thread 32x32 Single Cycle Fast Multiplier in ASIC Design Methodologies and Tools (Digital)Hi, I never did a multiplier design. But a 16 bit signed multiply is rather: 1_bit_sign + 15_bit_value. Thus signed x signed = 1_bit_sign x...7 replies | 168 view(s) -
Today, 07:37KlausST replied to a thread 32x32 Single Cycle Fast Multiplier in ASIC Design Methodologies and Tools (Digital)Hi, --> You need different algorithms. A unsigned 32 x 32 bit multiplication causes a 64 bits wide result A signed 32 x signed 32 bit...7 replies | 168 view(s)
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Today, 02:11KlausST replied to a thread 32x32 Single Cycle Fast Multiplier in ASIC Design Methodologies and Tools (Digital)Hi, Did you decide whether you want unsigned only or you want signed arithmetics? Klaus7 replies | 168 view(s)
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Yesterday, 16:35KlausST replied to a thread Power supplies combination to produce +15Vdc and -15Vdc ??? in Power ElectronicsHi, No. But in detail it depends on the load circuit. If inside the load the +15V in is only referenced to GND and the -15V in is only...12 replies | 158 view(s)
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Yesterday, 16:08KlausST replied to a thread [SOLVED] Signal Ground attached to my DC bias ground? in Analog Integrated Circuit (IC) Design, Layout and FabricationHi, Even if your power supply is ideal, then the wiring causes stray inductance. This is what you need to take care of. In my PCM designs: When...15 replies | 307 view(s)
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Yesterday, 14:42KlausST replied to a thread Power supplies combination to produce +15Vdc and -15Vdc ??? in Power ElectronicsHi, an isolated power supply is like a battery. Connect two batteries in series... then you have 3 nodes. Which one you name "GND" is up to...12 replies | 158 view(s)
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Yesterday, 14:26KlausST replied to a thread Fuse replacement 110V 5A to replace 220V 5A ? in Service Manuals, Requests, Repair TipsHi, If a bungee rope is rated for 110 pounds .. would you recommend your 220 pounds friend to use it? ;-) Klaus5 replies | 79 view(s)
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Yesterday, 14:24KlausST replied to a thread Power supplies combination to produce +15Vdc and -15Vdc ??? in Power ElectronicsHi, should work. Assuming they are properly isolated.... Klaus12 replies | 158 view(s)
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Yesterday, 14:02KlausST replied to a thread Fuse replacement 110V 5A to replace 220V 5A ? in Service Manuals, Requests, Repair TipsHi, No. --> Use a fuse with at least 220V voltage rating. Klaus5 replies | 79 view(s)
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Yesterday, 13:51KlausST replied to a thread [SOLVED] Signal Ground attached to my DC bias ground? in Analog Integrated Circuit (IC) Design, Layout and FabricationHi, there is not a single power supply decoupling capacitor! --> add a bulk capacitor per rail and a ceramics capacitor at each power supply pin...15 replies | 307 view(s)
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Yesterday, 11:21KlausST replied to a thread How to read incremental rotary (quadrature) encoder? in MicrocontrollersHi, Use a standard input for the SW. Poll the SW with with a frequency higher than 20Hz (50ms). Klaus7 replies | 124 view(s)
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Yesterday, 09:07KlausST replied to a thread How to read incremental rotary (quadrature) encoder? in MicrocontrollersHi, It depends what you want to do with it. Brians solution is good for input devices like the ALPS EC11 encoders. But if you want to do...7 replies | 124 view(s)
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Yesterday, 06:35KlausST replied to a thread PCB Layout design to reduce unwanted magnetic coupling in Electromagnetic Design and SimulationHi, The loop acts like a loop antenna. The bigger the enclosed area the "better" the antenna .... the worse EMI and EMC, because the lower cutoff...2 replies | 171 view(s)
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Yesterday, 06:29KlausST replied to a thread [SOLVED] Signal Ground attached to my DC bias ground? in Analog Integrated Circuit (IC) Design, Layout and FabricationHi, Now we see "copper area" or"copper fill", but no true GND-plane Whether this is suitable or not depends on the whole PCB and it's circuit and...15 replies | 307 view(s)
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17th April 2019, 22:52KlausST replied to a thread [SOLVED] Signal Ground attached to my DC bias ground? in Analog Integrated Circuit (IC) Design, Layout and FabricationHi, I agree with barry. All your thoughts are almost useless when you don't have true ground planes. Klaus Klaus15 replies | 307 view(s)
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17th April 2019, 22:45Hi, Did you read the Opamp datasheet? This is the most reliable place to find such information. Look for: * sink, source * high drive, low...23 replies | 756 view(s)
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17th April 2019, 22:30Hi, As always with power switching applications: PCB layout is critical. Especially if you not experienced I recommend to use one layer of the...9 replies | 285 view(s)
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17th April 2019, 06:45KlausST replied to a thread Touch Controller Sensivity Adjustment in RF, Microwave, Antennas and OpticsHi, A riddle. We don't see your circuit, nor do you tell whether you read the datasheet, especially the section "sensitivity adjustment". We...2 replies | 136 view(s)
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17th April 2019, 00:37KlausST replied to a thread how i use this evaluation board "DC2222A-A" without PDA ? in Analog Circuit DesignHi, I still don't know what you mean with "PDA"? Please explain. DCxxx are demo boards. You may use them, because they have reliable...3 replies | 129 view(s)
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16th April 2019, 20:26KlausST replied to a thread Help to make circuit for Nerve Stimulation Device in Hobby Circuits and Small Projects ProblemsHi, So, why do you ask? Are resistors too simple? You did not do a simple search on your own...otherwise you already know "buck converter"...18 replies | 4759 view(s)
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16th April 2019, 16:27KlausST replied to a thread [SOLVED] Power Supply Rejection Ratio in Analog Integrated Circuit (IC) Design, Layout and FabricationHi, I did a quick internet search on "PSRR unity gain" howto: http://lmgtfy.com/?q=PSRR+unity+gain The third hit is: Understanding power...1 replies | 149 view(s)
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16th April 2019, 16:09KlausST replied to a thread how i use this evaluation board "DC2222A-A" without PDA ? in Analog Circuit DesignHi, I searched through both documents and did not find "PDA". What are you talking about? Klaus3 replies | 129 view(s)
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16th April 2019, 10:43Hi The problem is not the "distance". Itīs the current flow and the impedance...that may cause error voltage. Easiest way: --> use a proper...2 replies | 210 view(s)
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16th April 2019, 10:25KlausST replied to a thread 4 bit lcd display(PC066PGL) not working with PIC16F877A micro controller in MicrocontrollersHi, at least the "or" of Hello world" seems to be correct. This tells us * the initialisation is correct * the contrast is working * the...20 replies | 563 view(s)
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16th April 2019, 10:16KlausST replied to a thread prolong the incoming pulse duration with some electronics solution in MicrocontrollersHi, show your proteus circuit. Klaus5 replies | 430 view(s)
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16th April 2019, 06:02KlausST replied to a thread 4 bit lcd display(PC066PGL) not working with PIC16F877A micro controller in MicrocontrollersHi, Where can we find "what you expected to be printed on the LCD"? Klaus20 replies | 563 view(s)
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16th April 2019, 05:59KlausST replied to a thread [SOLVED] Signal Ground attached to my DC bias ground? in Analog Integrated Circuit (IC) Design, Layout and FabricationHi, In my eyes: you must connect signal_GND with power_GND. They must not be floating with respect to each other. Otherwise the circuit will...15 replies | 307 view(s)
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15th April 2019, 16:05Hi, Your question looks "general" on one side and "unelaborated" on the other side. We still have to guess: Do you want to transmit via UART?...8 replies | 506 view(s)
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15th April 2019, 12:47Hi, you are in an electronics forum. I suggest that ask this question in a welding forum. Afaik: the type of gas depends on welding...2 replies | 380 view(s)
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15th April 2019, 12:43KlausST replied to a thread Offline Flyback SMPS: Y2 capacitor from primary to secondary can be high value? in Power ElectronicsHi, What is "primary ground"? If you donīt mean "EARTH_GROUND" then the impedance of the Y capacitors may enable current folow from secondary...4 replies | 134 view(s)
About KlausST
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