 |
전자부품 데이터시트 검색엔진 |
|
|
전자부품 데이터시트 검색엔진 |
|
ADE7169F16 데이터시트(PDF) 55 Page - Analog Devices |
|
||||||||||||||||||||||||||||||
ADE7169F16 데이터시트(HTML) 55 Page - Analog Devices |
|
|
55 / 140 page  Preliminary Technical Data ADE7169F16 Rev. PrD | Page 55 of 140 POS POS INTERRUPT STATUS REGISTERS NEG APSIGN Flag NO-LOAD THRESHOLD ACTIVE POWER NO-LOAD THRESHOLD ACTIVE ENERGY Figure 41. Energy Accumulation in Positive-Only Accumulation Mode Watt absolute accumulation mode The ADE7169F16 is placed in absolute accumulation mode by setting the ABSAM bit in the ACCMODE register (0x0F). In absolute accumulation mode, the energy accumulation is done using the absolute active power, ignoring any occurrence of power below the no-load threshold, as shown in Figure 42. The CF pulse also reflects this accumulation method when in this mode. The default setting for this mode is off. Detection of the transitions in the direction of power flow, and no-load threshold are active in this mode. POS POS INTERRUPT STATUS REGISTERS NEG APSIGN Flag NO-LOAD THRESHOLD ACTIVE POWER NO-LOAD THRESHOLD ACTIVE ENERGY APNOLOAD APNOLOAD Figure 42. Energy Accumulation in Absolute Accumulation Mode Active energy Pulse output ADE7169F16 also provides all the circuitry to have a pulse output that frequency is proportional to Active power – see Active Power Calculation section. This pulse frequency output uses the calibrated signal after WGAIN and its behavior is consistent with the setting of the active energy accumulation mode in the ACCMODE register (0x0F). The pulse output is active low and should be preferably connected to an LED as shown on Figure 53. Line cycle active energy accumulation mode In line cycle energy accumulation mode, the energy accumula- tion of the ADE7169F16 can be synchronized to the voltage channel zero crossing so that active energy can be accumulated over an integral number of half line cycles. The advantage of summing the active energy over an integer number of line cycles is that the sinusoidal component in the active energy is reduced to 0. This eliminates any ripple in the energy calculation. Energy is calculated more accurately and in a shorter time because the integration period can be shortened. By using the line cycle energy accumulation mode, the energy calibration can be greatly simplified, and the time required to calibrate the meter can be significantly reduced. In line cycle energy accumulation mode, the ADE7169F16 accumulates the active power signal in the LWATTHR register for an integral number of line cycles, as shown in Figure 44. The number of half line cycles is specified in the LINCYC register. The ADE7169F16 can accumulate active power for up to 65,535 half line cycles. Because the active power is integrated on an integral number of line cycles, at the end of a line cycle energy accumu- lation cycle the CYCEND flag in the Interrupt Status Register 3 SFR (MIRQSTH, 0xDE) is set. If the CYCEND enable bit in the Interrupt Enable Register 3 SFR (MIRQENH, 0xDB) is set, the 8052 core has a pending ADE interrupt. The ADE interrupt stays active until the CYCEND status bit is cleared—see Energy measurement interrupts section. Another calibration cycle will start as soon as the CYCEND flag is set. If the LWATTHR register is not read before a new CYCEND flag is set, the LWATTHR register will be overwritten by a new value. When a new half line cycles is written in LINECYC register, the LWATTHR register is reset and a new accumulation start at the next zero-crossing. The number of half line cycles is then counted until LINCYC is reached . This implementation provides a valid measurement at the first CYCEND interrupt after writing to the LINCYC register – see Figure 43. The line active energy accumulation uses the same signal path as the active energy accumulation. The LSB size of these two registers is equivalent. |
유사한 부품 번호 - ADE7169F16 |
|
유사한 설명 - ADE7169F16 |
|
|
링크 URL |
| 개인정보취급방침 |
| ALLDATASHEET.CO.KR |
| ALLDATASHEET 가 귀하에 도움이 되셨나요? [ DONATE ] |
Alldatasheet는? | 광고문의 | 운영자에게 연락하기 | 개인정보취급방침 | 링크교환 | 제조사별 검색 All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
Korean ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
