01 General LED driver There are many types of LED power supplies, and quality and price of different power supplies vary greatly, which is also one of important factors affecting quality and price of product. LED drive power can g...
A component often used in electronic circuit design is resistor. We all know that resistors play a role in dividing voltage and limiting current in a circuit. However, in real life, a special type of resistor is used: a zero-resis...
01 Concept and functions 1 Concept DC-DC refers to a direct current (direct current) power supply. This is a device that converts electrical energy of one voltage value into electrical energy of another voltage value in a DC circu...
A little knowledge of power circuits: will help you understand difference between source current and drain current.
1.DDR power supply 01, main power supply VDD and VDDQ Main power supply requirement: VDDQ=VDD, VDDQ is I/O buffer power supply, and VDD is I/O buffer power supply. However, in general, VDDQ and VDD are combined into one power supp...
The design of current loop of an electric drive, as an important and complex point in field of drive technology, puzzles many engineers. Let's lift veil together today. For motor, if current becomes larger, there are two dangers:...
Save money Common mistake #1.What color should I choose for bar indicator? Personally, I like blue better, just choose it. A positive decision. Red, green, yellow and orange indicator lights available on market, regardless of si...
I was talking about calculating critical mode of buck converter inductance, given that when input voltage is constant, if my input voltage is AC voltage, for example, input source is a battery, at this time we need to read maximum...
Sample application (1) A simple 3-step lead-acid battery charger control scheme: A simple 3-step lead-acid battery charger control scheme: This board file is a simple 12V/4A three-stage charger designed in same way as above (no re...
How much current can a 0 ohm resistor handle? This question should be checked by every hardware engineer. And related to this is another question, namely, how big is resistance of 0 ohm resistor? These two questions were original...
The source of amplified output is power supply connected to collector. We consider it as a pool connected to a collector. The more collector damper is open, greater will be water flow (Ic); base current (Ib) For example, amount of...
- What is drowning in gold? Why Shen Jin?
- This is a metaphor for EMI/EMS/EMC that can be understood at a glance.
- How many types of pads have you seen in PCB design?
- Summary of Common PCB Repair Techniques
- What is three anti-paint? How to use it correctly?
- Knowing these rules, you will not get confused looking at circuit diagram.
- How to make anti-interference PCB design?
- Can diodes do this?