diff options
author | Ben V. Brown <[email protected]> | 2022-09-22 13:10:01 +1000 |
---|---|---|
committer | GitHub <[email protected]> | 2022-09-22 13:10:01 +1000 |
commit | 6fab3e5252560dded970590d8a12b55e284a86a3 (patch) | |
tree | cda4245e963f6cce9b01942ef0d866e902ba6e95 /Documentation/Power.md | |
parent | c89db78b45faae08bfd3acf45f55e0dc028b1add (diff) | |
download | IronOS-6fab3e5252560dded970590d8a12b55e284a86a3.tar.gz IronOS-6fab3e5252560dded970590d8a12b55e284a86a3.zip |
Generate a mkdocs github page + Migrate documentation links to use it (#1414)
* Approx first pass?
* Update docs.yml
* Filling out menu
* Update GettingStarted.md
* Index docs links
* Update index.md
* Update README.md
* Link redirection
* More link rewrite
* Update HallSensor.md
* Split up flashing
* Derp
* Flashing links
Diffstat (limited to 'Documentation/Power.md')
-rw-r--r-- | Documentation/Power.md | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/Documentation/Power.md b/Documentation/Power.md index c6b57702..e2a08db3 100644 --- a/Documentation/Power.md +++ b/Documentation/Power.md @@ -39,8 +39,8 @@ Therefore the Pinecil and TS100 perform poorly when run off 12V power supplies a These soldering irons use a FET to switch the power to the soldering iron tip. This is a P-MOSFET and its controlled via a small transistor circuit, which in turn is controlled via the MCU (i.e., STM32). The MCU controls this PWM output proportional to the output from the PID control loop running in the software. -To measure the tip temperature in the iron, the iron has a small op-amp connected across the terminals at the cold end of the tip. This is setup to measure the voltage across the same terminals that are used to power the tip. In order to read the very small voltage generated by the [thermocouple cold junction](/Documentation/Temperature.md), the iron's output must be turned off for a moment. +To measure the tip temperature in the iron, the iron has a small op-amp connected across the terminals at the cold end of the tip. This is setup to measure the voltage across the same terminals that are used to power the tip. In order to read the very small voltage generated by the [thermocouple cold junction](https://ralim.github.io/IronOS/Temperature/), the iron's output must be turned off for a moment. Once the output is turned off (via the FET), the system has a recovery time as the tip capacitance discharges and the op-amp exits saturation. After this delay period, the MCU's ADC (analog-to-digital converter) samples the output of the op-amp 8 times quickly and then sets a flag to turn the PWM output back on. -This enforces a small dead time in the output signal while this occurs, so there is a balance between sampling the temperature often to maintain a stable tip temperature control and sampling less often to increase the maximum power deliverable to the tip ([see Complexity of measurement](/Documentation/Temperature.md#complexity-of-measurement)). +This enforces a small dead time in the output signal while this occurs, so there is a balance between sampling the temperature often to maintain a stable tip temperature control and sampling less often to increase the maximum power deliverable to the tip ([see Complexity of measurement](https://ralim.github.io/IronOS/Temperature/#complexity-of-measurement)). |