While I was waiting on TI to finally release the BQ41Z90 battery IC, they came out with a completely different chip which could also work for me. Only 6 uA in sleep, but it achieves that by using low-side fets (which in turn avoid the idle consumption of a charge pump), and it doesn't have a fuel gauge algorithm, or it's a very naive one.
I don't like low-side fets, mostly because it breaks the I2C. But there are ways around that.
#electronics #electricalengineering
β CT Questions?
Q: Accuracy class? A: 0.2S/0.5 for billing. 5P/10P for relays.
Q: Open secondary? A: NEVER. Voltage >1000V. Dangerous.
Q: Recalibration? A: Every 5-10 years for metering.
π More: https://duomatech.com/ljw1-35-ljwd1-35kv-oil-immersed-current-transformers/
π JSJW-3/6/10 Three-Phase Oil-Immersed Voltage Transformers (3β10kV) β IEC 61869 Certified
Full compliance with international standards. ISO 9001 quality management. Type-tested by independent laboratories.
Interoperability, safety, and quality assurance.
π Certificates: https://duomatech.com/jsjw-3-6-10-three-phase-oil-immersed-voltage-transformers-3-10kv/
#CurrentTransformer #IECStandard #Quality #Duomatech #ElectricalEngineering
π JSJW-3/6/10 Three-Phase Oil-Immersed Voltage Transformers (3β10kV) β IEC 61869 Certified
Full compliance with international standards. ISO 9001 quality management. Type-tested by independent laboratories.
Interoperability, safety, and quality assurance.
π Certificates: https://duomatech.com/jsjw-3-6-10-three-phase-oil-immersed-voltage-transformers-3-10kv/
#CurrentTransformer #IECStandard #Quality #Duomatech #ElectricalEngineering
β CT Questions?
Q: Accuracy class? A: 0.2S/0.5 for billing. 5P/10P for relays.
Q: Open secondary? A: NEVER. Voltage >1000V. Dangerous.
Q: Recalibration? A: Every 5-10 years for metering.
π More: https://duomatech.com/jdz9-10-jdzxf9-10g-indoor-single-phase-epoxy-resin-voltage-transformer/
β CT Questions?
Q: Accuracy class? A: 0.2S/0.5 for billing. 5P/10P for relays.
Q: Open secondary? A: NEVER. Voltage >1000V. Dangerous.
Q: Recalibration? A: Every 5-10 years for metering.
π More: https://duomatech.com/jdz9-10-jdzxf9-10g-indoor-single-phase-epoxy-resin-voltage-transformer/
β‘ BH-0.66 II Current Transformer | 0.66kV Indoor Window-Type CT
The BH-0.66 II indoor plastic case current transformer is a window-type low-voltage current transformer designed for current measurement, electrical m
β’ Product name: Indoor Plastic Case Current Transformer
β’ Model series: BH-0.66 II / BH(SDH)-0.66 II
β’ Product structure: Window-type / through-core current transformer
β CT Questions?
Q: Accuracy class? A: 0.2S/0.5 for billing. 5P/10P for relays.
Q: Open secondary? A: NEVER. Voltage >1000V. Dangerous.
Q: Recalibration? A: Every 5-10 years for metering.
π More: https://duomatech.com/ljwd-10-12-oil-immersed-current-transformer-with-steel-tank-outdoor-3/
β‘ AKH-0.66/23/58/88/812/816 Split-Core CT | 0.66kV 5A Metering | GB1208 IEC60044
The AKH-0.66 series split-core current transformers are precision electromagnetic instruments designed for accurate current measurement, energy meteri
β’ System voltage class: 0.66 kV class (low-voltage distribution applications)
β’ Rated frequency: 50 Hz
β’ Rated secondary current: 5 A
π https://duomatech.com/akh-0-66-split-core-current-transformer-low-voltage-metering/
Harvey Sandstrom
thomaselectric