FvM
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Yesterday, 23:30There's much literature about oil and gas filled HV switches, some results can be probably applied to sparc gap behaviour. I agree with wwfeldman...8 replies | 167 view(s) -
Yesterday, 23:20FvM replied to a thread How to make a 5V negative supply using the LM2576 regulator in Analog Circuit DesignThe shown 200 mV noise is just what you can expect from the simple circuit and layout. The 80 MHz ringing is mostly caused by the switching schottky...3 replies | 94 view(s)
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Yesterday, 23:00I suggest to study high voltage ultrasonic echo sounder circuits to get an idea how to implement voltage clamping in the receiver path. They often...7 replies | 258 view(s)
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Yesterday, 22:11That's o.k. Problem is unsuitable combination of kp and ki, as already stated. kp=1 seems generally problematic. A controller with practical use has...5 replies | 162 view(s)
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Yesterday, 14:05In case of doubt, derive the parameters in transient analysis.4 replies | 87 view(s)
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Yesterday, 12:56FvM replied to a thread How to design an class d output filter ( active filter )? in Analog Circuit DesignPurpose of the design is still mysterious. You may use a SD-modulator to drive a three-level class D amplifier and place a passive LC filter towards...7 replies | 184 view(s)
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Yesterday, 12:45Please specify "control speed". - on/off control - switching between discrete speeds - continuous speed variation In addition, what's expected...4 replies | 110 view(s)
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Yesterday, 12:27FvM replied to a thread VHDL coding Status register read problem in PLD, SPLD, GAL, CPLD, FPGA DesignRegisters assigned on both edges are sreg(0), sreg(1), sreg(3), sreg(4), ISA_DBUS2. It's easy to see the signals assigned under falling and rising...4 replies | 163 view(s)
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Yesterday, 08:22englishdogg replied to a thread Design Compiler Command Needed in ASIC Design Methodologies and Tools (Digital)check_timing4 replies | 598 view(s) -
17th March 2019, 22:31Right. XOR detector transfer function is a triangle for square wave signals. Depending on the VCO slope sign, the PLL either locking on the rising or...7 replies | 240 view(s)
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17th March 2019, 19:26FvM replied to a thread PCB design and schematic for a half bridge power amplifier. in PCB Routing Schematic Layout software and SimulationThe driver circuit is wrong, you can't drive a 24V supplied PMOS transistor with a 12 V ground referred driver. Q2 will be permanently on.5 replies | 173 view(s)
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17th March 2019, 12:26Thick film jumper resistor have finite resistance (at least a few milliohms) and thus limited current capability. The nominal current rating of a...1 replies | 104 view(s)
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17th March 2019, 10:42FvM replied to a thread How to design an class d output filter ( active filter )? in Analog Circuit DesignSeriously I don't understand the purpose of an active filter behind a class D amplifier. Nevertheless a linear filter with almost flat pass band...7 replies | 184 view(s)
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17th March 2019, 10:18FvM replied to a thread Using Plain polyester or Metalized polyester Capacitor in place of polypropylene in Power ElectronicsIf they are rated for 250VAC (or whatever the applied AC voltage is) ...2 replies | 145 view(s)
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17th March 2019, 10:14FvM replied to a thread PCB design and schematic for a half bridge power amplifier. in PCB Routing Schematic Layout software and SimulationI wonder what MC34125 is, I don't know a gate driver IC of this type. As for the layout, the traces are surely sufficient for 3A, but using copper...5 replies | 173 view(s)
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17th March 2019, 09:59FvM replied to a thread Stability Simulation with Cadence in Analog Integrated Circuit (IC) Design, Layout and Fabricatione.g. a miller capacitor across CMFB amplifier transistor M3A.46 replies | 844 view(s)
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16th March 2019, 23:48FvM replied to a thread Stability Simulation with Cadence in Analog Integrated Circuit (IC) Design, Layout and FabricationFor a specific feedback topology, loop gain and closed loop gain are clearly related. In most feedback amplifier applications, closed loop behaviour...46 replies | 844 view(s)
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16th March 2019, 23:12O.K., apparently it's a problem of the ADC setup. Did you verify that the ADC is converting at all and showing reasonable status information?5 replies | 137 view(s)
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16th March 2019, 23:06FvM replied to a thread 3 phase 400Vac 5000W Full bridge converter power factor correction Buck or Boost type in Power ElectronicsYou are right, it's impossible to achieve sinusoidal input current through B6 bridge. But you can achieve 120° conduction angle with arbitrary...23 replies | 796 view(s)
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16th March 2019, 19:27That's not possible with the shown circuit, you need to measure the cable voltage drop separately. If you mean substracting a constant cable...9 replies | 262 view(s)
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16th March 2019, 13:54Do yo enable interrupts globally somewhere, e.g. by _IPL = 0 ?5 replies | 137 view(s)
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16th March 2019, 10:36FvM replied to a thread Stability Simulation with Cadence in Analog Integrated Circuit (IC) Design, Layout and FabricationIf you want to assess the CMFB loop stability, both test setups can be expected to have quite similar result.46 replies | 844 view(s)
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16th March 2019, 10:29The presented circuit topology (current source + differential amplifier) doesn't work for 3-wire. You need a special circuit that compensates for the...9 replies | 262 view(s)
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15th March 2019, 22:41FvM replied to a thread minimum depth for data streaming through async fifo in ASIC Design Methodologies and Tools (Digital)Can you assure that the read clock will never overtake the write clock or vice versa? If not, you need to implement a mechanism for substituting...24 replies | 408 view(s)
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15th March 2019, 22:32FvM replied to a thread minimum depth for data streaming through async fifo in ASIC Design Methodologies and Tools (Digital)I believe the question has been already answered.24 replies | 408 view(s)
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15th March 2019, 17:53The Pt100 current source should refer to a precision reference or the ADC reference (ratiometric measurement) but not the 15V supply. It's usually...9 replies | 262 view(s)
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15th March 2019, 16:53Transistor Q4 is driven into BE junction breakdown, even if is not damaged you'll reduce the sensor voltage this way. I wonder how you arrived at the...7 replies | 258 view(s)
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15th March 2019, 16:30ccdist = "Circuit Components Distributed Components" ADS manual37 replies | 1067 view(s)
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