Circuits & Schematics: 10
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- .. Transformer Please follow these steps to build the transformer. First, prepare these materials: Core: ferrite, EE-20-10-6 (B66311G0000X187) Primary winding: 2.88 mH (124 turns of 0.2 mm wire) Gap: around 0.25 mm (mathematically) ...07-05-2024
- .. enough voltage to drive blue LED D 1 . In this application, the LED exhibits a voltage drop of approximately 3.3 V at 10 mA forward-bias current. Table 1 illustrates the LED's applied voltage, V BAT + |V OUT |, and Q 1 ’s ...03-05-2024
- .. bit close to the input voltage boundaries. Therefore 400 V is a wise selection for the capacitors’ voltages. C1 has a 10 mm pitch size. This number is 10.5 mm for the C2. K1 is an MKDSN connector with 5.08 mm pitch size ...26-04-2024
- .. pumps and associated filters: C4 + C5 for the positive rail, C7 + C8 for the negative. Peak-to-peak output ripple is ~10 mV. Output regulation is provided by the charge pump control from the temperature compensated discrete transistor ...26-04-2024
- .. across it to fairly precise and constant values. For example, with R 3 = 430 Ω, the current in LED 2 is approximately 10 mA with 5 V at Q 2 ’s base (TX high). If you use a device such as the HLMP-1000 for LED 2 , its forward voltage ...23-04-2024
- .. this controller skips a certain number of power cycles in between, to vary power to the heaters. In this typical design, 10 full cycles are taken as base. Timer U3 (555) through R2, R4, and C1 decides this by giving output pulses with an ...15-04-2024
- .. state is zero. Below are the timing equations for the test circuit in Figure 5 built with IC1 = TLC393 , R4 = R6 = 10 kΩ, R5 = R7 = 22 kΩ, and +V S = 15 V. Note that V CS falls out of the equations, so the ’on’ time is ...05-04-2024
- .. with R3. Some ’large’ (high current) MOSFETs have gate capacitances of tens of nanofarads, so with R1 = R3 = 10 kΩ it can take several milliseconds for the gate to discharge completely. Now, with C2 = 100 nF and R7 = 10 kΩ, Q3 ...28-03-2024
- .. peak value to the signal end of R1, and adjust R8 for zero indication on the meter. Now apply the maximum level I chose +10 dBu and set R11 for full-scale deflection. R8 must be set first, then R11. Temperature stability is good. According ...21-03-2024
- .. a first-order temperature coefficient of 3.9 parts/1000/ C. As a result, the regulated current decreases about 4% for each 10 C increase in operating temperature. Materials on the topic Datasheet Maxim MAX1685 Datasheet Maxim MAX4162 Datasheet ...20-03-2024
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