Questions tagged [current-limiting]
Current limiting is the practice in electrical or electronic circuits of imposing an upper limit on the current that may be delivered to a load with the purpose of protecting the circuit generating or transmitting the current from harmful effects due to a short-circuit or similar problem in the load.
754 questions
0 votes
3 answers
124 views
Current limiting for high power LED array
I'm working with a group designing some high power LEDs for DIY stage lighting. We purchased an 800W multi-color array chip on board made by Tyanshine (Data sheet: http://www.txled.com/uploadfiles/...
0 votes
3 answers
55 views
Setting Current Limit on A4988 driver
I recently bought 3 NEMA 17 stepper motors from pihut.com for a project, and got some A4988 drivers from a company called AZDelivery on amazon.co.uk. Was trying to set up the stepper motors with a ...
- 11
0 votes
1 answer
107 views
Current distribution in a simple motor drivers circuit
Circuit: DC power supply bench voltage feeds 3 TMC2208 stepper motor drivers, each driving a NEMA 17 stepper motor, 100uF 35V elecrolytic capacitor in parallel with each. 5V regulator to power a ...
- 81
5 votes
1 answer
173 views
How to overcome oscillations in current limiter?
I’m designing a current limiter with two extra features: (1) it can be turned on and off manually regardless of the limiter’s state, and (2) it automatically turns off after a specified duration of ...
- 321
1 vote
2 answers
120 views
LED characteristics outside the typical
I'm evaluating the following LED: L130-5080002011001. It is a 5000K LED with the following range of forward voltage (at 120 mA): min 2.85±0.1 V; ...
- 171
0 votes
0 answers
37 views
MIC2309 I-LIM Pin Voltage/Current for Resistor Wattage Selection
For the MIC2039AYMT, I'd like to understand the voltage and current characteristics of the I-LIM pin, as this will help me determine the appropriate wattage rating for the external resistor. Currently ...
- 1,821
1 vote
2 answers
181 views
Best way to charge a NiMH 9V battery
What's the best way to charge a 9 V/300 mAh NiMH battery as the real voltage, under full-load, is 8.4v? I have a 12 VDC supply and my first thought was to reduce it to 9.5V, using a LM1117 regulator. ...
- 137
0 votes
2 answers
100 views
Limit reached without current at the limit on an SMU?
I have a Keysight B2900 series SMU and one of the channels is orange. By the manual, it is said that an orange display means that the current limit is reached. But the measured current (less than 1 nA)...
- 109