| ??? 11/24/10 16:53 Read: times |
#179592 - Off Topic Responding to: ???'s previous message |
Seung Hyun, Cho said:
i can read english well ... microcontroller ATMEGA128 But not well enough to spot that an ATMEGA... is not an 8051 (or 8052)! i found all the value of resistor on datasheet
but i can't find the value of R1/R2/Rshunt Really?? Just looking at the schematic, those are the components by which the chip reads the current and voltage - so they are absolutely fundamental to the operation of the device! Are you really saying that they are not documented in the datasheet??! can anyone guide me how to caclulate the value of R1/R2/Rshunt? Well, they set the inputs to the chip's VIN+, VIN-, IIN+, nad IIN- pins - don't they? So the datasheet specifications for those input requirements should enable you to calculate the values? |
| Topic | Author | Date |
| CS5460A circuit configuration, help | 01/01/70 00:00 | |
| Off Topic | 01/01/70 00:00 | |
| thanks you for reply | 01/01/70 00:00 | |
| Be *VERY* careful! | 01/01/70 00:00 | |
| Use the isolated version? | 01/01/70 00:00 | |
| Have you tried contacting Crystal Semiconductor? | 01/01/70 00:00 | |
| Is it 1991 already?! | 01/01/70 00:00 | |
True, but they still answer questions | 01/01/70 00:00 | |
| The datasheet tells it all... | 01/01/70 00:00 | |
| Product Data Page | 01/01/70 00:00 |