Changes in 211bcec: Merge branch 'master' of https://github.com/Edragon/edragon.github.io

				Chip-cn-dat/EDCT-dat/2025-05-22-00-58-59.png
			
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				Chip-cn-dat/EDCT-dat/EDCT-dat.md
			
          @@ -0,0 +1,22 @@

          +

          +# EDCT-dat

          +

          +## ED-CT2020

          +

          +ED-CT2020C 1000/1 20A/20mA

          +

          +![](2025-05-22-00-58-59.png)

          +

          +specs == 20A/20mA ratio 1000:1

          +

          +## ED-CTM

          +

          +ED-CTM-200-X 1000/1 20A/20mA

          +

          +ED-CTM-200-Z1 1000/1 20A/20mA

          +

          +![](2025-05-22-01-07-11.png)

          +

          +## ref 

          +

          +- [[current-transformer-dat]]

          \ No newline at end of file

				Tech-dat/Optical-Coupler-DAT/Optical-Coupler-DAT.md
			
          @@ -7,3 +7,25 @@

          +## PC817 vs EL357 

          +

          +| Specification                          | EL357                         | PC817                            |

          +| -------------------------------------- | ----------------------------- | -------------------------------- |

          +| Manufacturer                           | Everlight Electronics         | Sharp / Renesas / Lite-On / etc. |

          +| Type                                   | Phototransistor Optocoupler   | Phototransistor Optocoupler      |

          +| CTR (Current Transfer Ratio)           | 50% to 600% (varies by model) | 50% to 600% (varies by model)    |

          +| Input LED Forward Voltage (VF)         | 1.2V typ., 1.4V max           | 1.2V typ., 1.4V max              |

          +| LED Forward Current (IF)               | 50 mA max                     | 50 mA max                        |

          +| Output Collector-Emitter Voltage (Vce) | 80V max                       | 80V max                          |

          +| Output Collector Current (Ic)          | 50 mA max                     | 50 mA max                        |

          +| Isolation Voltage                      | 3750 Vrms                     | 5000 Vrms                        |

          +| Response Time (tr/tf)                  | 4 µs / 3 µs typ.              | 4 µs / 3 µs typ.                 |

          +| Operating Temperature                  | -55°C to +110°C               | -30°C to +100°C                  |

          +| Package                                | DIP-4, SOP-4                  | DIP-4, SOP-4                     |

          +| RoHS Compliant                         | Yes                           | Yes                              |

          +

          +Both are widely used in similar applications (signal isolation, microcontroller interfaces).

          +

          +The PC817 offers **higher isolation voltage**, making it more suitable for high-voltage isolation.

          +

          +The EL357 has a **wider operating temperature range**, which may be beneficial in harsh environments.

          \ No newline at end of file

				Tech-dat/Sensor-dat/current-sensor-dat/current-sensor-dat.md
			
          @@ -4,4 +4,16 @@

           - [[current-transformer-dat]] 

           - [[dc-current-sensor-dat]]

          -- [[ACS712-dat]]

          \ No newline at end of file

          +- [[ACS712-dat]]

          +

          +

          +## alternative to [[ACS712-dat]]

          +

          +- Original CC6920 BSO-5A SOP-8 High-performance Hall effect current sensor, isolation voltage 3.5kV

          +- Original CC6902 SO-5A SOP-8 Single-chip Hall effect current sensor, isolation voltage 2kV

          +- Original CC6904 SO-10A SOP-8 Single-chip Hall effect current sensor, isolation voltage 2kV

          +

          +

          +## ref 

          +

          +- [[sensor-dat]]

          \ No newline at end of file

				Tech-dat/Sensor-dat/current-sensor-dat/current-transformer-dat/current-transformer-dat.md
			
          @@ -5,7 +5,7 @@

           ## PCB Mount 

          -- [[zeming-dat]]

          +- [[zeming-dat]] - [[EDCT-dat]]

           ## Open Split Core Current Transformer

          @@ -41,4 +41,6 @@ Here's a breakdown:

           ## ref 

          -- [[current-sensor]]

          \ No newline at end of file

          +- [[current-sensor-dat]] 

          +

          +- [[current-transformer]]

          \ No newline at end of file

				Tech-dat/tech-dat.md
			
          @@ -51,7 +51,7 @@

           ### Sensors and actuator 

          -- [[sensor-dat]] - [[current-sensor-dat]]

          +- [[sensor-dat]] - [[current-sensor-dat]] - [[current-transformer-dat]]

           - [[acturator-dat]] - [[motor-dat]]

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				app-dat/RC-dat/Tank-dat/Tank-dat.md
			
          @@ -6,6 +6,16 @@

           - [[tank-track-dat]]

          +## tank platform 1 

          +

          +- Each wheel has an independent suspension spring 

          +- six rogs each side 

          +

          +![](2025-05-22-00-49-44.png)

          +

          +![](2025-05-22-00-50-12.png)

          +

          +

           ## ref 

           - [[RC]] - [[tank]]

          \ No newline at end of file

...	...	@@ -0,0 +1,22 @@
	1	+
	2	+# EDCT-dat
	3	+
	4	+## ED-CT2020
	5	+
	6	+ED-CT2020C 1000/1 20A/20mA
	7	+
	8	+![](2025-05-22-00-58-59.png)
	9	+
	10	+specs == 20A/20mA ratio 1000:1
	11	+
	12	+## ED-CTM
	13	+
	14	+ED-CTM-200-X 1000/1 20A/20mA
	15	+
	16	+ED-CTM-200-Z1 1000/1 20A/20mA
	17	+
	18	+![](2025-05-22-01-07-11.png)
	19	+
	20	+## ref
	21	+
	22	+- [[current-transformer-dat]]
...	...	\ No newline at end of file

...	...	@@ -7,3 +7,25 @@
7	7
8	8
9	9
	10	+## PC817 vs EL357
	11	+
	12	+\| Specification \| EL357 \| PC817 \|
	13	+\| -------------------------------------- \| ----------------------------- \| -------------------------------- \|
	14	+\| Manufacturer \| Everlight Electronics \| Sharp / Renesas / Lite-On / etc. \|
	15	+\| Type \| Phototransistor Optocoupler \| Phototransistor Optocoupler \|
	16	+\| CTR (Current Transfer Ratio) \| 50% to 600% (varies by model) \| 50% to 600% (varies by model) \|
	17	+\| Input LED Forward Voltage (VF) \| 1.2V typ., 1.4V max \| 1.2V typ., 1.4V max \|
	18	+\| LED Forward Current (IF) \| 50 mA max \| 50 mA max \|
	19	+\| Output Collector-Emitter Voltage (Vce) \| 80V max \| 80V max \|
	20	+\| Output Collector Current (Ic) \| 50 mA max \| 50 mA max \|
	21	+\| Isolation Voltage \| 3750 Vrms \| 5000 Vrms \|
	22	+\| Response Time (tr/tf) \| 4 µs / 3 µs typ. \| 4 µs / 3 µs typ. \|
	23	+\| Operating Temperature \| -55°C to +110°C \| -30°C to +100°C \|
	24	+\| Package \| DIP-4, SOP-4 \| DIP-4, SOP-4 \|
	25	+\| RoHS Compliant \| Yes \| Yes \|
	26	+
	27	+Both are widely used in similar applications (signal isolation, microcontroller interfaces).
	28	+
	29	+The PC817 offers higher isolation voltage, making it more suitable for high-voltage isolation.
	30	+
	31	+The EL357 has a wider operating temperature range, which may be beneficial in harsh environments.
...	...	\ No newline at end of file

...	...	@@ -4,4 +4,16 @@
4	4	- [[current-transformer-dat]]
5	5	- [[dc-current-sensor-dat]]
6	6
7		-- [[ACS712-dat]]
...	...	\ No newline at end of file
	0	+- [[ACS712-dat]]
	1	+
	2	+
	3	+## alternative to [[ACS712-dat]]
	4	+
	5	+- Original CC6920 BSO-5A SOP-8 High-performance Hall effect current sensor, isolation voltage 3.5kV
	6	+- Original CC6902 SO-5A SOP-8 Single-chip Hall effect current sensor, isolation voltage 2kV
	7	+- Original CC6904 SO-10A SOP-8 Single-chip Hall effect current sensor, isolation voltage 2kV
	8	+
	9	+
	10	+## ref
	11	+
	12	+- [[sensor-dat]]
...	...	\ No newline at end of file

...	...	@@ -5,7 +5,7 @@
5	5
6	6	## PCB Mount
7	7
8		-- [[zeming-dat]]
	8	+- [[zeming-dat]] - [[EDCT-dat]]
9	9
10	10
11	11	## Open Split Core Current Transformer
...	...	@@ -41,4 +41,6 @@ Here's a breakdown:
41	41	## ref
42	42
43	43
44		-- [[current-sensor]]
...	...	\ No newline at end of file
	0	+- [[current-sensor-dat]]
	1	+
	2	+- [[current-transformer]]
...	...	\ No newline at end of file

...	...	@@ -51,7 +51,7 @@
51	51
52	52	### Sensors and actuator
53	53
54		-- [[sensor-dat]] - [[current-sensor-dat]]
	54	+- [[sensor-dat]] - [[current-sensor-dat]] - [[current-transformer-dat]]
55	55
56	56	- [[acturator-dat]] - [[motor-dat]]
57	57

...	...	@@ -6,6 +6,16 @@
6	6
7	7	- [[tank-track-dat]]
8	8
	9	+## tank platform 1
	10	+
	11	+- Each wheel has an independent suspension spring
	12	+- six rogs each side
	13	+
	14	+![](2025-05-22-00-49-44.png)
	15	+
	16	+![](2025-05-22-00-50-12.png)
	17	+
	18	+
9	19	## ref
10	20
11	21	- [[RC]] - [[tank]]
...	...	\ No newline at end of file