SA08290261B1 - Methods and apparatus for providing power to a notification appliance circuit - Google Patents

Abstract

Abstract: An arrangement for use in a safety notification system comprising primary and secondary power sources and a voltage converter. The primary power source provides electrical power to a notification system circuit. The secondary power source includes at least one battery. A coupled power transformer connects the battery to the notification appliance circuit of the notification system, configured to generate a regulated DC voltage from an output voltage generated by the power source. Secondary power source. Generally, the secondary power source is used when the primary power source is not available, or otherwise not working. However, the secondary power source may also be used in other circumstances. Figure (5)

Description

Methods and apparatus for providing power to a notification appliance circuit FULL DESCRIPTION BACKGROUND The present invention relates to circuits in building systems providing signals to appliances Devices distributed in different areas of a building or facility ° Safety systems include efire among others; Detection devices include fire detection devices and notification devices or alarms. Detection devices include smoke, heat or gas detection devices that Ala defines as intrinsically unsafe in a building. building or other facility Detection devices may also include stations with a manually operated device or handle 0 These notification appliances Lalla are often referred to as notification appliances notification devices which are devices that provide an audible and/or visual notification of a state or circumstance of insecurity and safety; Vo smoke "which detects the presence of smoke and provides an audible warning or alert that responds to smoke detection and assists the smoke alarm or warning device as a smoke alarm device™ and in commercial and industrial facilities and buildings Residential buildings with multi-storeys and condominiums; Jl fire 0 fire safety systems are advanced. general; The fire safety system in commercial facilities includes a panel or SST of fire control panels that serve as distributed control elements. Each fire control panel was connected to a set of Yao devices

Distributed detection devices and/or a group of distributed notification devices. The fire control panel serves as a focal point for focusing on the "problem"; which show signals generated by detection devices: distributed; And as a source of activation signals (in the sense of notification) for the notification appliances © distributed (in building 18 or facility). Most safety systems in large buildings include multiple fire control panels connected to a data network network Fire control panels use this network to distribute information related to alerting, warning and maintenance means among other purposes.In this way, a notice of a fire or other emergency Vs may be spread throughout a large facility as a whole. In addition to alld, a central control system may be implemented through a computer dedicated to a specific purpose or multi-purpose, such as a personal computer, and the computer control station is ideal for connection to multiple fire control panels. Through a data network .data network B and by using this general engineering design 606:81p, the safety systems from fire are expanded to accommodate many Jules, including the organization of the building “building layout” and the management of its needs; and the needs of the users of the building. To achieve the required large scales and flexibility; Fire safety systems may include any number of computer control stations and remote communication devices for information and data; database management systems, multiple networks of control panels, literally hundreds of detection and notification devices 061801000. It may also include safety devices and/or interact with csafety systems. Elevator control systems, sprinkler systems (fire sprinkler systems), heating, ventilation and air conditioning systems (HVAC) 7125 A

That is, one of the many sources of cost bases in fire safety systems is the costs of electrical installations and the costs of the material covered for notification appliances. voltage, and electric current. and for example; In accordance with building safety codes; It is intended by devices or means of notification z 0 to be subject to operation from a signal with a limiting voltage YE volts; The electrical power of the notification device, which allows it to perform its notification or alert function. For example, JU (an alarm or warning bell; a flashing lamp; or an electronic alarm or warning device operating from a limiting electrical source YE volts. Generally, however, requires notification devices bed) to operate at voltages as low as 11 volts only. Connecting the electric power 0 to be distributed to the notification devices and equipment requires a significant amount of electrical connections and / or a significant number of distributed HF electrical sources. In particular; Ideally, notification devices are connected in parallel in what is known as a notification device circuit, or NAC, and each of these systems is connected to an electrical power source (mains supply); Jie power supply YE volt” has 1 positive conductor; a ground conductor; Several notification devices are connected through the two connectors. The current source (or electrical Hal) may be located in the fire control panel or other panel. The read notification circuit 5 contactors assist in communicating the operating voltage from a power source; ? volts to the distributed notification devices. And because the conductors are positive (polarity) and those connected to the ground have a final electrical capacitance; © in the sense that it has an impedance; There is therefore a practical limit to how far the sensor circuit may extend from a power source before the voltage available through the conductors of the sensor circuit falls below the required operating voltage. and for example; If copper wire conductors used have an electrical resistance of 07 ohm/ft; Then 1,000-foot wire conductors will exhibit a resistance of 0.7 ohms. and if the power draw through the Yo conductors is ¥ amp; Then there is a decline in destiny; Volts for electrical potential over a length of 100 feet, Yato

on of the wire. The same wire will produce a drop of Ald volts through a wire 70,010 feet long; Which will supply very little voltage to devices at the end of the loop. It is noted that by increasing the current draw in the circuit of the notification devices, the voltage drop in the circuit of the notification devices through the resistive conductors also increases. And accordingly. The number of devices in the circuit of the notification devices, as well as the length of the circuit of the notification devices, is limited; At least relative to a given source voltage. In addition to that; The power source must be able to supply power to all circuits of the sensing devices in the absence of power to the current sources. accordingly; While he usually obtains an ability source; Volts for a circuit of notification devices during 0 conversion of electric power to alternating current from the current source is by providing support. And in the previous pulmonary field; Two batteries of 11 volts each were used as a secondary power source. Thus, a panel that provides electrical power to the sensor circuit generally requires a source of YE volt transformer AC to AC power from a power source as well as a battery holder. The shortcomings in the normal phase of the sensor circuit and the capacity of the sensor circuit device 1 are exacerbated by this need for battery back-up capacity. The normal length of the circuit of the notification devices as discussed herein in this description of the invention means the length of the electrical power conductors and the ground conductors from the current source of the circuits of the notification devices. general; The actual voltage or current of the electrical power source varies from 7054 to 7700 volts during the useful life of the batteries. Standards by building code or code require that the notification circuits be always on during the entire useful life of the battery; and on sail when the battery output voltage drops to 70054V or less. And when a low output source voltage of the battery combines with the voltage drop through the power conductors of the lad instrument circuits, the ability of the sensor circuit to deliver an appropriate voltage through longer conductor runs is severely hampered. Yaso

In order to meet the shortcomings of the circuit of the notification devices due to voltage drops; Extending the coverage of notification devices often requires an increase in the number of electrical power sources. For this purpose; 5,080 Electrical Circuit Extension Devices may use designated electrical devices. These devices are panels connected to an existing fire control panel and linked to a means or notification device. However; The Power Extension 0 device enables the power signals of a notification instrument circuit to additional Shen notification circuits. Thus, the electrical power extension device is characterized by its electrical power source and the backup power source from the battery to supply electrical power from the current source to the circuits of the notification devices. These devices work as extensions for the circuit of the notification devices for the fire control panel, to which the electrical power extension device is connected through 0 electric current. It effectively extends the use of power extenders to the coverage that Le) may reach using a single fire control pan. The power supply or current extension device is less expensive to implement compared to the fire control cpanel, but nevertheless requires additional equipment in addition to the costs of batteries. One way to extend the coverage of a real notice circuit without adding other fire control panels and power wiring devices is to choose power connectors with lower resistances. and for example; There is a switch from a VA rating wire to a thicker 1lb rating wire that can be extended so much as to cover an acceptable length (and/or instrument capacitance) in the notice circuit. However; Thicker wire has significantly higher costs due to the amount of copper in the thicker wire. 7 Accordingly; There is a need to reduce costs in the Lan notice circuits due to the need to find sufficient power and voltage for the notice devices spread throughout the entire facility or building. meet the needs and demands described above; and further need by at least certain other embodiments of the invention which use a circuit source voltage of y y , installed sensing devices even when energized which may have a low output voltage y4¢o v- 86 and in some cases anthropomorphisms The voltage supplied to the source circuit of the alarms installed by means of a switchgear transformer (one of the main points is that the means of operation is more closely on a per circuit basis than on a large total transformer basis. For this it uses smaller components which are under less thermal and electrical stress allowing the The cost of the transformer is based on 0 “according to Halal, as it is reduced to the lowest extent (the point of abstention or failure of the electrical switch) which

It in turn ensures a stable output voltage even when the source (current) voltage varies (i.e. from y

batteries). and in favorite embodiments; The installed voltage exceeds the limiting voltage to allow the notification circuit to maintain an appropriate voltage level or level over the lengths

extended assuming a certain current draw.

Ve A first embodiment of the invention relates to an arrangement for use in a safety notification system comprising primary and secondary electrical power sources and a voltage transformer The first power source provides electrical power to the notification device circuit of the notification system. The secondary electrical power source shall include at least one battery. The voltage converter couples between

battery and notification device circuit for the notification system; It is formed to generate a DC voltage from 1 output voltage generated by a secondary power source.

general; The secondary power supply is used when the primary power source is not available or otherwise not working. However; The secondary power source may also be used in other circumstances.

A second embodiment is in order of use in a safety notice system which also includes 538 electrical sources and a voltage transformer and in this embodiment; The first power supply shall provide at least 14 volts AC feeding a notification device circuit to a notification system. The secondary power supply includes at least one battery; It has a useful life determined by an output voltage exceeding 4:00 volts. The voltage converter couples the battery to the notification device circuit of the notification system. A voltage transformer is configured to generate an AC voltage of (1) volts less than the output voltage generated by the secondary power source during the useful life of the power source (in another configuration the transformer is capable of increasing or decreasing the voltage. In this figure a

m "z

,

—A- This is directly related to the circuit of notification devices, whether operating on AC or battery. -1 Additional compensation can be made for AC sources during "failure wire connections" conditions - as the means of operation is the only source of power for the sensing equipment circuit

They can be monitored directly to activate, disable, and modify the notification devices circuit

An ideal current output relay (which is also a problematic source) of the secondary.

The above describes the characteristics and advantages of the invention as well as other advantages that will become clearer and clearer to those with regular experience in the technical field by referring to the following detailed description and the attached drawings. BRIEF EXPLANATION OF PROPERTY Fig. 1 is a diagram of the sequence of phases for a chip of a fire safety system that includes an embodiment of the present invention; 1 shape? shows a phase sequence diagram of a notification circuit extending device that includes an embodiment of the present invention given as an example” Fig. is a schematic diagram of a converter circuit that may be used in a power source in support of the notification device according to oF Fig. 4 Ble for a phase sequence diagram of an alternative dominant power Vo that may be used in the notification device according to Figure 7; Figure © is a diagram of the sequence of phases for arranging an electrical power fed to a circuit of notification devices. Includes some embodiments of the invention. Detailed description Y. Figure (1) shows a safety alert or warning (fire) notice system z incorporating an arrangement according to the invention. The safety alert or warning notice system includes Yq¢o

-< And a group of systemic loops Vo Y fire control pan on a fire control panel 0

for notification appliance loops; A set of NY detectors and a set of 00 loops

0 411; VT and General Notification Extended System; The safety alert or warning notice system 001 is depicted in a simplified form for display purposes. Notification systems for alerting and warning for the purpose of safety will include multiple monitoring panels connected by Lag between them; (not explained); But it is similar to the .011 fire control panel and Lam has loops and numerous devices from each fire control panel. In addition to that; Ideally used for terminals

0 central and other supervisory and alerting or warning equipment; (not explained); Such devices are deleted

From Figure 1 for clarification and clarification of the offer.

The fire control panel is ©:5; or simply 'fire board |' 011 "5:8 panel

| It will become VV E, 111 detection devices, Ye detectors and 011 04.

| It becomes clearer indeed the more the 011 fire panel Gaal describes specific operations and capabilities of the panel 1

The rest of the system installation 001 below. and in any case; Preferably a 011 + fire board

As a device “Lyles for example” FS250 MXL “XLS spent” available from “Siemens Building Technologies” company. General; The fire board can work | The seal detected a statement due to high risk during a device or receive to receive the 011 panel

| control Communicate the presence of this statement to a control station All detection devices 0

| centralization (not explained); as well as to other fire panels; (It is also not explained). form station

Fire panel 011 fire panel also to provide a signal (and power) to devices »

Notification appliances at least Tee and 1011 responding to a received command from a centralized control station or responding to a received signal | Other or responding to receiving a statement of severe danger through the fire panel Fire dal from Yo

| Yaio

a

One or more of the 114 detection devices, Vv e, and the 011 fire panel also has the ability to detect equipment failure in device loops (1102 011 4 V+ ¢ notification appliance loops xi) and loops devices

1 V+ ¢ notification appliances are distributed throughout the building; It forms to create an epitaph and/or audible statement for the status of a facility alert, building 0, or warning. As it is known in the technical field; Notification devices include strobes, electronic alarm devices, and other electronic alarm bells. Aelia devices and loudspeaker devices connect the 011 fire panel to the fire panel IV 1 The notification appliances are 014 and .006 and the notification devices are .006 and 004 during the loops of the corresponding notification devices 0 readiness; there is no circumstance after the alarm; but the device Ala A is in a normal ready state And in

Be able to generate notification (meaning an audio or visual statement) if receiving appropriate inputs from the fire panel 011 fire panel during our activity 5 V + ¢ notification appliance loop 011 5 Vf notification appliance loops Vo

Serve as power-sharpened connectors that connect the fire panel 017 to the distributed notification appliances 01 and 0% 13. The regulations require that all notification appliance loops be; 01 and dala 011 for electrical power required to operate distributed notification devices; 10a and 110a. As discussed above; Yes, there is a practical limit to the length of the notification appliance's loops, 100 10 ¢ notification appliance.

| due to resistive capacity losses.‎ 0

11VY detection devices and NYE are devices distributed throughout the building or entire facility; and pose to detect the seriousness of safety; Jie the presence of smoke, fire, cfire, or harmful gases, noxious gasses, and when a danger is detected | Information YE and TVVY detection devices are detrimental to safety; Connecting Detectors Yo

| Y4to

,

-11- : Aull information for fire detection 011 during the corresponding detector loop AVY The IVY and re detectors may include a network of smoke detection 8 detectors on the detector The risks are well known in the associated technology; such as <HFP11 ¢FP11 17011 available from Siemens Building Technologies Inc. © The detectors 111 and 114 may also include manual pull stations that are triggered by manual impact When one of the building's occupants grabs her. These detectors are well known in the relevant technical field and are included here only for narrative and contextual purposes. There are detector loops 1117 detection loops and 114 Alas electrical connection between the detection devices 111a and Pre 0 and the fire panel VY. These loops and their operation are also known as Tam in the technique. Notifications 018 may suitably and substantially be the same types of devices as Notifications 01 and V0 however; Connect the 018 notification devices to the VV T notification device extension system as will also be discussed in detail below. And the irradiator system 111, which allows an extension from the loop of the primary notification device to 10 loops of other devices to extend the coverage range during the loop of the first device. and for example; As shown in Figure 1, the coverage extension system 111 allows coverage from the notification device loop 0 to other loops 018 and 100 and as discussed above; There is a normal distance limit on the 10 and 011 notification loops due to voltage losses along the loops wire. The notification coverage system allows 1176; among others; means of a voltage booster 0 sufficient to trigger the nooses of other voltmeters 018 and Ae and as further discussed; Jy system for extending the coverage of notices of 111 signals in a certain way z with a notification device connected to the fire board 017. For this purpose, the coverage system forms 116 z to receive a notice or notification from the fire board Vo, and these signals indicate that there is z A warning should be indicated in the same way as notification devices 110a. However; and instead of vo (or in addition to) finding a visual or auditory notice in response to this notice signal; The M system

-17- Coverage 1116 forms so that it generates other notification signals Lally these signals to notification devices 810aa and ye during other notification loops #01 and Ve and so on Z system allows extension of notifications 111 Greater coverage of the fire board OY and the notification device loop A. According to at least one embodiment of the present invention; The notification extension or coverage system 111 includes a primary source 710; an auxiliary power supply 177 and a boost circuit for voltage 4 VY and constitutes the primary power source 171 to find a notification signal to the loops of other notification devices #01 and 011 where the first power source 171 gets the input power from an AC power source. In this embodiment, the first power supply provides 171 direct current voltage levels of 71 + 00 volts, which is in excess of the voltage of the limiting sensors circuit, which amounts to yi volts. And because the primary power source 11 provides YU volts; The notification signal may be relayed to other distances while the voltage level is maintained; enough for notification devices 018 and 101a. Back-up power source 111 and voltage boost circuit 11 cooperate to create a notification signal when 1 primary power source I is not available Te and for example; In case of emergency; The electrical power of an AC source similar to a primary power source 1071 may not be available, and a backup power source 174 and a booster circuit 174 cooperate to generate a signal that exceeds 1 volt, which is the limiting voltage. The auxiliary electrical source 770; in an embodiment of rad eg 0 described herein includes a battery arrangement providing an output voltage of € YO = X volts which is made available in the event of a cut-off of electrical power from the current source. A booster circuit 176 connects the auxiliary power source VYY to the loop of the notification device 0018 and Ye and forms a booster circuit; 17 to boost (at least Libel) the voltage available by the dominant power source 117 to an implied level which exceeds the minimum voltage level of the auxiliary power source YY Yo and so the voltage booster circuit forms; 11 p.m.

I ee y to find a notification signal that has a voltage level that exceeds or exceeds the level or level of the minimum voltage level of the auxiliary electrical source 177. In this embodiment; The YE voltage booster circuit provides 1 implicit output voltage of approximately YU volts. and so on; When Z batteries are used as YY back-up power supply and have an output range of 00.4 to YT volts during their useful (or useful) life, the booster circuit will generate an output signal having an implicit voltage (preferably an implicit voltage exceeding 4 volts) and at any time the voltage ranges between 7054 and 1 volt. In an alternative embodiment; The auxiliary power source 1" may be replaced by a battery circuit (or auxiliary power source) with a voltage exceeding 0 -_ the useful voltage range of the 1018 and 110A notification devices. In this The alternative; may appropriately replace the voltage boost circuit; 17 with a step-down transformer which reduces the voltage from a predominant electrical power source 111 to a voltage approximating the maximum useful voltage of the 018 and 00A notice devices. For example, the power source may consist The support 117 in this embodiment consists of three batteries, each of which has VY volts connected in series, and the reduced transformer may, in an appropriate manner, convert the 376 volt output of the 5080 main electrical source YY into a voltage below YA volts. Example 77 V. Returning now to the first embodiment described here, the operation of the circuit according to Fig. 1 will be discussed briefly.Under normal conditions, the JVA STV cE 00a signaling devices are in a ready state, but they do not generate audible or visual notification signals. These are 0 normal conditions, normal day-to-day operation of the building that is not affected by fire or other emergency situation. He tests the 001 fire safety system or its parts from HAY time to ensure that the system is in ready condition. and sometimes; A fault may appear in the notification loop (eg YE and 018) or one of the IVY Vea 10116 devices and these faults may not be detected by the testing processes. M"

-16- An alert or warning condition appears when an unsafe circumstance is detected. and for example; A YY detector may detect a smoke condition indicating a smoke/fire event. The YY detector may activate the connection of the YoY fire panel alarm condition and alternatively; It may detect an alarm or warning event by another device connected to another fire control panel; 0 0 (not explained). This warning event may be connected to the fire panel (101) via another fire monitoring panel. When a warning event is indicated, the fire monitoring panel (V+Y) provides a notification signal for each of the notification loops (8) (V+ and . (016) Each of the notification devices (P06) and (1) receives a signaling signal and generates an audible and/or visual notification that alerts building occupants of a detected non-safety. or cover notices (VV) notice signal from the fire board (V0) during the AY notice loop) and then; Notice Covering Device (111) generates another signaling signal for span or coverage loops (018) and (111). By using the electric power from the primary HE source (171). Backup power supply (117) and voltage booster circuit (VE) The voltage booster circuit (YY) makes the acknowledgment signal at sufficient voltage for the length of the coverage loops (V+A) and (111) without regard to the breakout voltage Mains power supply 0 batteries (771), assuming that the batteries are still in their useful life range. Because the voltage boost circuit (VY) and extension loop length (VA) and (111) may be designed such that longer than would otherwise be possible 13) The extension loop has been sharpened or induced directly from the mains L(V YY) batteries. This allows coverage of . Yato

and d - greater than the notice extender (711); and thus than the fire board (V4) at reduced costs. It is noted that the above savings are achieved without regard to whether a warning event appears from the dase, or whether a sudden increase in the electrical capacity of the current source appears occasionally. © Savings appear because the increased output voltage allows for a less expensive system to be implemented. In particular; It may meet building codes that require that the system (001) be designed to generate voltage under extreme conditions of the triggering event; “idle surges in capacity and voltage drop of the batteries” using low voltage sources and/or reduced wire thicknesses. The Fire Panel (VY) itself may use a 0 backing power supply and a booster circuit similar to the backing power source (YY) and the backing up circuit (Ye) 1) for the Notice Covering Device (117) to extend to the loop coverage (V8) and (01 L(V) Indeed, any device which includes as an output an oscillator circuit or provides power to one or more oscillators circuit systems may use this arrangement. By reference or referencing generally to embody Figure (1) described above Figure (1) shows a schematic diagram, for example, of the notification extender (07?) which may be used in an appropriate manner as a notification covering device (117) according to Figure (1) and now referring to figure oY) includes the notification extender (( V1) contains an input circuit (410)”; an oY oT monitoring circuit), an 8508 AC mains supply (Yo A), a charger circuit for batteries (+) (YY), a battery circuit (YY), and a booster circuit (€) TV and Ye circuit (MV) output The Lad Extender (017) has (YY) and (YYA) sensor circuit inputs and (177) sensor circuit outputs ( (YY) ((YVA) and (YY) and display screen (X74)) The inputs of the notification devices (YY1) and (YYA) “notice loop” connectors are connected and configured to receive the signal signals generated by the source Last + during the notification loop. On the contrary; Connect the outputs of the notification devices circuits (1174); (YY £) ((YYY) »(7170) vo) For rooting and finding notification signals on 35 devices. Connect 6" Z

Vie the outputs of the latter (TVA) and 4 (YY) to the loop connectors of a notification device circuit (not shown); the outputs of the 5 (YVA) seal circuits connect to the loop connectors of the Jat device circuit ] (not clarified); Outputs (177) and (116) are connected to the loop connectors of a second notice circuit; (not clarified). From a practical point of view, it may be used in more or less z 0 outputs of a notice circuit. The input circuit is paired () 006) in practice with the inputs of the sensor circuit (YY) and (7748); z | z and constitute to take over a notification device connected between the inputs of the sensor circuit (YY) and TYA) and also constitute the input circuit (£ (Ve) To receive a normal notification signal in the range of YE -18 volts (or about YE volts) and this signal is generated between the inputs of the notification circuit (177) and 0 (/174). An indicator of the presence of a notice signal being provided to the monitoring circuit (1 + L(Y) and it may know the details of a suitable input circuit that may be known to those who have the usual skill in this technical art. The monitoring circuit (1 +) is a processing circuit (for data) that Formed to perform logical and supervisory operations of the device (007). For this purpose, the processing circuit may include a 10- programmable micro-data controller or processor. general; The monitoring circuit (7) (Y) is formed to receive a statement meaning that a notification signal has been received in the (data) input circuit (00) and to generate a command that causes the output circuit (111) to provide a notification signal on the outputs of the 0 circuit of the notification devices (YYE) ((YYY)”) (171) (VIA) The monitoring circuit (Ye) has signals for enabling and disabling the AC power supply (+A) and the boost circuit (116). 0 also constitutes the monitoring circuit (V1). to monitor the indicators on the display (YP) and the monitoring circuit (707) may also be configured in a suitable way to test the battery voltage of the battery circuit oY) as well as z to follow and evaluate the tests of the notification devices connected to the outputs (YX) (TY) o (Y VA) and (XY) and the data display (170) in a suitable manner may be any device capable of Yo communicating with at least rudimentary information specific to the devices 5 ff Notification circuitry 6" z

-17/- . associated with the device (017). circuit power, or other cases Other display arrangements may be known to those of ordinary skill in the technical art An alternating current (Vo A) power supply is a power supply circuit that converts the alternating current electrical potential of a current source into direct current 76 volts for use by an output circuit (V1) in generating signal signals.The DC power source (Vo A) also provides DC voltage values at other outputs (not shown); z to trigger a control circuit o (1+7) and other logic elements in the device (+1). The DC power source (YA) is present in some embodiments as the battery charger capacity (101). The DC power source may be ( ) (718) is a very well-known form of transformer, diodes, and capacitors with little or no voltage regulation. - The Ble (110) battery charger consists of a circuit that generates a charging voltage supplied to the battery circuit (YY). CHARGING BATTERIES SUITABLE FOR USE IN EQUIPMENT 1 Fire safety is well known in the technical art. The battery circuit (717) in this embodiment includes two batteries of 11 volts each connected in series; They generate a limiting voltage YE volts for direct current. As is known fam in technical art; however; voltage will vary; The Yetet battery circuit (CIC) may generate 7? Volts during the useful or useful life of the batteries. Batteries using the Ys method may be suitable for lead-acid type. The booster circuit (Y1€) is a 353 that receives an output voltage of the battery circuit (107) and generates an intrinsically implicit output voltage of about YT volts. For this purpose the booster circuit (Y1£) may suitably include the operation of A transformer for converting direct current to alternating current in 0 as a booster transformer This circuit may include monitoring and feedback control of the operating switch M"

Load -1 to hold the implicit output voltage. Another preference for a given embodiment is illustrated by eg z of an augmented circuit (Y1£) shown in the form (©); It is discussed below. The battery circuit (YY) and the boost circuit (716) cooperate in this way to form a DC power backup unit (37?) for which there is an implicit output voltage over the lifetime of the batteries in the battery circuit (117). Direct Current Electrical Power Backup (TTY) Any fire monitoring device that triggers an ead circuit or other energized circuit that is powered dadd normally by two 11 volt batteries. For direct current (77?) in the form: (?). In particular, the figure (£) shows the direct current electric power support unit 0 (407) which includes a battery circuit (£48) and a driver transformer for converting direct current to direct current ‎ LAT (£47) In contrast to the battery circuit (YY) of Figure (7); the battery circuit (£4) comprises three 11V batteries connected in series L(A) (£14). In contrast to the booster circuit (£17) of Figure (7), the DC-to-DC driver transformer (£41) includes a step-down transformer that reduces the output voltage of the 1 76 volts of the battery circuit (407) to Notice circuit voltage under about YA volts; + and preferably; - 776 V DC. A DC Power Assist Unit (£1) could easily be used in place of the Battery Circuit (YY) and the Boost Circuit (716). However, it requires a DC Power Assist Module (£1). 07) Additional costs related to the 11-volt additional battery Z compared to the DC power supply unit (777) shown in Figure Ys and with reference to Figure Y again; the output circuit (Y11) is a circuit constituted to generate notification signals under the command of the monitoring circuit L(Y + T) and the electrical power of the notification signals is derived from the output voltage Lf of the direct current power source (Ve A) or the booster circuit (716 ) to the outputs of the sensor circuits (YY 0) o(YVA) (777) and (TYE) and in a preferred embodiment To the output circuit (717) includes a closely circulating controller for the hotness of La Ya¢ o + .

-14- due to the transient pulses that can appear when seal Wl triggers the notification. In particular; When the output circuit (11) generates an acknowledgment signal on the sensing circuit outputs (YT) (VA) (YYY) and (YY E) it can generate an initial transient current pulse. And during this transient impulse of the current; The output circuit hot-swap regulator (Y11) automatically supplies the current needed to protect the internal devices during surges in a short period. z and in operation; The Notification Extender (YoY) monitors the YYA (YT) circuit input signal for the Age signal There is a problem; Or any other reason 0 han because of the notification devices. When an acknowledgment signal is detected in the input of the sensing devices circuit (YY) (174), the input circuit (£0)1 allows a logic indication signal to the monitoring circuit (1) (Vo) and the circuit 0 allows the monitoring (Yo) Responsive to receive the indication signal from the input circuit (4 10); a signal to the output circuit indicating that the output circuit (7136) should generate a notification signal in the outputs of the notification devices (177) (YY) (YVA) and (7) The control circuit (Yo) also enables the output signal (07A) of the DC power supply (Yo A) to be energized if the AC power source is available. (507); in addition, the output signal of the booster circuit (0?). Accordingly, the DC power supply (YA) and not the Bang DC backing power (7??) power signal to the output circuit IVT) and in Alls AC power is not available from the source the monitoring circuit (V+) disables the output signal (A) + ?A) of the DC power source +A) ?) and enable the 0 output signal (ITV E) of the booster circuit (£ L(Y) and as a result; A DC power supply unit (YY) configured via 5350 batteries (YY Y) and a booster circuit (£YY) provides electrical power to the output circuit (IVT) and thus the output circuit (111) The acknowledgment signal to the outputs of the yoke circuits (YA) (770); (YYY) and (YYE) using the wattage available via either the DC Power Assist (YYY) Yo Module or a source direct current electrical power

(01). Sometimes the control circuit (1+¥) and the output circuit (YA) cooperate to modulate the information or the flashing lamp trigger signals in the acknowledgment signal. Such operations are known in the technical art. The apparatus described above enables this The syntax is signaled signals having a voltage of 0 that is relatively implicit without regard to the set output voltage of the battery circuit (11) assuming that the battery circuit (VY) operates within acceptable ranges. In this embodiment, the implicit voltage relatively exceeds the rated limiting direct current at Ye volts to the battery circuit (317). Accordingly, no sensor circuits connected to the outputs of the (YY) (YVA) (177) and (YE) sensor circuits should not be designed for the worst-case scenario Lovie 0 decreases voltage to Yoo volts (or lly thereof) for the output voltage of the batteries circuit (71).Because the booster circuit (;17) maintains an output voltage at a level above and below the acceptable battery circuits voltage;preferably at or exceeding voltage A; 7 volts limit, the sensor circuits may be designed using the assumption of the sensor circuit voltage ef.This allows longer sensor circuit coverage; and/or using less expensive standard wiring. vo and will be aware that there is a device to cover the notifications (¥ +7) according to the form (Y) or Yay than that from any power source that provides electrical power to the notification device circuits will ideally be able to conduct to more than One or two sensing device circuits.In such a case, it is preferable that separate booster circuits (£(Y) be implemented in sensing device circuits that require boosting to avoid overcharges. This will allow 0 to have the individual booster circuits use pad fy smaller components compared to a single booster circuit that supplies power to all of the sensor circuits whether or not they require a booster. Figure (1) shows an embodiment given, for example, of a booster circuit (Y)£) of the form AY). A booster to convert a direct current into another direct current, and the circuit also includes an input, Yaso

-01?- 4 (Fo) batteries and enable circuit (YT) The enable circuit (Yo) includes an enable input signal (308) operatively coupled to the base (NPN) of a Q-1" transistor within Voltage Divider: Configured by means of resistors M- (VE) and (M- (VEY) with intrinsic equivalent resistor values. The enable input (FA) is a practical coupler to receive the battery selector or enable signal from 0 Monitoring circuit (27) according to Figure (1); The 'MOSFET' of a Q-74 switch is inserted into the battery (£ (Fr) through the resistance (m- (ITA) and for resistors (=p) 79) and (m- (VE) also an equivalent resistance. For example, All resistors (m-179) (m- +1) (VEY =g) and m- (VEY 0) have a resistance value of YY kilo-ohms. V0 outputs the battery circuit voltage (YY) of Figure (7), and then configured to receive a direct current voltage ranging at least between (01) and (16) volts approximately. Jabs connects the battery (741) to the input ( ©01) to the DC-to-DC converter (YY) Lal through the output bypass (source drain) of the 'MOSFET' switch. The ve bypass consists of the main signals of the DC-to-DC converter between the input (©01) and the output (TY) consisting of an input inductor (L1); and a MOSFET switch-on device of a transistor (Q-711). ); and a SUE_ diode to intensify the output signals (D-17) and a capacitor: output (W-01). The input inductor (Vd) couples the input signal (VY +) to the connection point between The output diode (D-11) and the discharge terminal of the operation switch (OY (Yo) and connect the source terminal of the operation switch (Q-OV) to ground through the resistance of the low resistance current sensor (m- (+0)) and form a terminal Diode output (D-01) circuit output (TY) and couple the output capacitor (T-01) between output (FY) and ground. It effectively connects the start switch gate (Q-1) to a monitoring device Pulse amplitude modulation (VY) A Pulse amplitude modulation (VY) monitor generates an amplitude modulated Yo driver signal in such a way as to monitor the transformer output voltage (T+) and may be a Yq¢o monitor z

“yy-pulse amplitude modulation (VV) is a signal generator that drives the device amplitude-modulation monitor; including the module for a LM3478MM PWM monitor available from National Semiconductor Company The monitor (U-AR) monitors the transformer input voltage (0). The amplitude of the pulses in a manner that maintains a constant direct current output signal, even if the input voltage and the load currents vary 0. In this embodiment, the monitor forms (U-VV) to generate a relatively constant output voltage of YT volts at least during The lifetime during which the batteries can be used in the battery circuit, meaning from Yoo V to 7 V. Ve For this purpose, the pulse amplitude modulation monitor (VY) is practically coupled to receive the input voltage from the input (+ oT). It is a voltage representative of the current through the ignition switch Ly a.ae “..a (VV = 55) of the sensing resistor (of) +) = p) and the output voltage of the voltage divider modulated by resistors (m- 11) 4 (M-7 Yo) which are connected in series from output (0) to ground. BA 0" The operating frequency of the monitor (VY) in this embodiment is approx. 6000 kHz. When the monitor model (LM3478MM PWM) is used as a tuning device (5 — 71), this may be set Frequency by connecting resistance (p = 001) (80.7 kOhm at 400 kHz) between the monitor (FA/SD) pin (VY) and ground. Connects the monitor's biased power input (5 = VY) at the transformer input (701) 1. Because the input of the transformer (©01) receives only 6080 electrical current when the MOSFET switch (Q-YE (responder to an enable signal) is closed), the The monitoring device (U - (VV) works only when the switch "MOSFET" - (Q - (VE) is closed. It follows that the monitoring device (VV = 5) works only when the enabling signal has been received in the enabling circuit. input (FA) and in normal operation, the battery enable signal will not be present.In particular, as long as the AC power yo of the power supply is available, there is no need to obtain a voltage m

m of the battery circuit. In the absence of the enable signal at the input oF A) the transistor device (Q-(Y) operates as an open circuit; thus activating the 'MOSFET' switch (Q-; 7). The voltage of the batteries does not reach the transformer output (©10) Thus, no voltage reaches the bias power input of the monitor (U-711). Thus, the transformer circuit (YF) does not receive an input voltage or the bias voltage of the monitor of the drive circuits (U-117). Under these conditions, the transformer (TY) does not produce output power in the output means (TY) however, if AC power is lost from the mains or in Ala

Test Operation” The monitoring circuit (+1) of Figure (1) gives the battery enable signal to the input device

(YA) and causes the enable signal of the transistor (508) (Y=) to turn on; which thus causes

0 Connect the MOSFET key- (Q-;?) to the battery input (€ + F) and thus to the transformer input (701). Then the control device (U-711) generates a pulse amplitude modulation controller signal that makes the key device (58 VV) actuate at a controlled and controlled speed. Key operation (58 VV) works in combination Or join with the operation of the inductive means Ne (L1); the capacitor (W-10); and the rectifier (S)-16 to generate an output signal greater than Ye volts; and in this embodiment it is as much as +77 volts. And if the battery voltage at the output of the batteries (8) V0 is close to YT volts” then the battery voltage passes through the rectifier (0 = 11) and the inductive device (L1) with little or no conversion. The voltage of the batteries drops during the useful or useful life of the batteries; the input voltage will drop at the input device (+71) and with el the monitor (VV) adjusts the trigger signal to maintain a relatively constant output voltage even as the voltage of the batteries drops. Output as a result of feedback by the output voltage of the voltage divider Z formed by means of resistors (M710); and (M710); and/or feedback of the available current Yago Z

ye by the resistance (Vo) sensor. These operations are carried out by means of the pulse amplitude modulation monitor (U-71). Thus the above circuit allows; an improvement over the fire warning circuits which depend directly to some extent on the voltage batteries as a secondary electrical source 508. In particular, the pulse amplitude modulation control connected to the outputs of such a device does not need to be configured under the worst-case scenario covering an output of 0.4 volts” but the closest is that the output voltage Transformer (307) has to be above YE volts, most preferably around YT volts. This circuit allows sufficient signal voltages through lengths of wire, since comparators are triggered by power directly from volt batteries. 01 minimum useful output voltage of approx. 0 As discussed above, the power assist unit may use direct Lal (YY) and/or (407) according to Figure (?; * and 4) in any device whose capacity is electrical circuit of the notification device, and it is not intended to be specified or limited to the covering device or the extension of the notification connections to warn of fire and ensure safety in a building or facility as pictured in Figure (1). However; The union or cooperation of the notification joint extension device and DC power supply unit in the form of Z (?) provides special features; That is, the consortium can extend effective coverage pleaad notice by tangible amounts without requiring additional fire control panels. He will also realize that the augmentation circuit (116) may be implemented in an appropriate manner on a circuit-by-circuit basis of a notice circuit. Thus when a sensing circuit does not require a booster circuit it may be avoided. (V1 £) the cost monitored with the booster circuit is (YY E) 0 and a booster circuit may not be required ideally as extending the sensing circuit loop does not allow for cost advantages iu sale, especially when low-cost wire extensions are already running out. and for example; If the design of a system requires that the notification devices department have a special z

Aas m

Yom is short; From 3 it would not be special to have a booster circuit involved in 0 in that case because the original design specification using batteries connected directly to the notification devices circuit might suffice. In addition to eld and because the booster circuit (£) V1 may be designed for a separate sensing device circuit as opposed to the total output of the power supply, this enables © to suffice with smaller and cheaper components.

And there is an embodiment, for example; With reference or reference to Figure (7); may be

It is possible to use a different output circuit (1176) for each sensing circuit (or pair of sensing circuits); With a separate booster circuit (8 (7) optionally supplied in connection with any or both of the output circuits. Ve will be aware of the DC voltage stability provided by a DC-to-DC converter AT as shown in FIG. (©) In some cases, advantages can be found even when the electric power is supplied by the corresponding 50 JL alternating current from the current source. For this purpose, Figure (0) shows an embodiment given, for example, where a direct current transformer is connected to a direct current AT In series between each of the primary electrical power source (907) (via AC power) and a secondary electrical power source (battery) (008). Primary power supply (¥ +0), secondary power supply (£ +0), primary enable switch (201), secondary enable switch A (00), another DC-to-DC converter 0 (014), and peal circuit arrangement Notice (oY) and constitutes the primary power source for converting the electrical power of an AC source into DC power for use in a notice circuit. The primary electrical power source (01) may suitably and substantially be the same as provided in embodiments of the source | Power for direct current (Ye A) according to Figure (7). In this case; The primary power source Yo (047) is very well known as a simple AC-to-DC converter which

It does not allow real regulation as long as the input voltage is supposed to be regulated as the AC power of the current source. , the secondary power supply (4 + 0) may suitably be a circuit + battery (or batteries) similar to the battery circuit (YY) of the L(Y) shape The primary and secondary enable switches are © (047) and (004) (suitably) actuating mechanisms (such as a MOSFET circuit or circuits) that couple the corresponding outputs of power supplies (507); and z (8+0) to a DC-to-DC transformer (200). The latter in a suitable way is the transformer (YF) according to Figure (©); or even the entire booster circuit (V0 8) according to Figures (1) and (7) and in the latter case; you may couple the enable switches ( (0071) and 0 (208) in the “battery” input (8) (Ye of the circuit according to Fig. AF) The arrangement of the heal circuit (01) (Y) may suitably be a loop of the eal circuit NOTICE Include power connectors and notification devices similar to those shown in Figure (1). The Heal DI arrangement may include, as necessary, a separate output circuit such as Output Circuit (117) that is capable of adding an intelligent device; 1, properties or modification of the notification signals. In the case of “on” a primary power source (+2) operates to create electrical power in the order of the notification devices circuit (017) through a DC-to-DC converter (+01) When electrical power is available from an AC source; The secondary power source (00) supplies power to a sensing circuit arrangement through a 0_DC-to-DC converter (014) when no power is available from an AC source. For this purpose, the enable switch (041) is turned on ) in a manner that can be monitored and controlled to connect the primary electrical power supply (+0) to the DC transformer and thus to another DC (014) when AC power is available through an AC power supply; and the enable switch (040A) is operating in an adjustable manner To connect the secondary power source (04%) m"

No to the transformer (011) to convert a direct current to another when no electrical power is available through a standard source She and a direct current to another direct current transformer (+01) and in the form of a boost circuit (06) and / or a power transformer ( FY) regulated voltage in response to a range of given input voltages © 0. So when the switch (047) is locked the transformer (014) which converts direct current to another direct current provides an implicit voltage (eg ?6-7); (? volts) even if the output of the primary power supply (CY) drops due to “Sie” conditions of worn-out AC power line wiring. Likewise, when switch (044) is closed, the transformer (0 (0) that converts directly to another direct current allows an implicit voltage of 0 (eg YY volts) even if the output voltage of the batteries drops as the batteries lose charge. In this case; The notification Beal circuit arrangement (517) receives an expected electrical power source without regard to the charge of the batteries, or the voltage fluctuations of the AC source. For the VF form as a DC-to-DC converter (105); the DC-to-DC converter (+00) pal provides the added advantage of allowing a digital 'enable input' (i.e. (08) according to the form of ©) that may be used to activate and deactivate” and even modify the signal of the notification devices circuit to its corresponding arrangement (Y) (01) and in particular; and by finding appropriate adjusting or modulating signals for the input power (218) of the transformer (+01) which 01_ converts one direct current into another direct current may provide the acknowledgment (or warning) signal with hidden information; even without using a separate 'output circuit' similar to the output circuit (773) of the form AY (and may also benefit from the anthropomorphism of the figure) 13) 0 Transformer Fig. (4 (0) for converting direct current into another direct current (000) as a booster/reducer transformer. and then; Jie this transformer can provide a regular output voltage even if the input voltage increases or exceeds a certain range. have z m

YA- such a circuit would be useful (13) The battery circuit or batteries for the secondary power supply (£00) are designed to have an output power overvoltage similar to the embodiment of Figure (4). He will realize that the embodiments described above are given as an example. and that those of me who have the ordinary skill in the technical art may resort to laying down their modifications and methods of execution which © incorporate the foundations of the present invention lly within the opal and its spirit.

IYdgo

Claims (1)

-Y4- Protection elements “safety notification system” for use in a safety notification system arrangement 1-1 includes: DA 07 2) and allows VY d) primary power source a) a power source primary electrical power to instrument circuit (2 07 008 VY.) power source; (20 VV) a notification appliance circuit © notification system 1 (0+ € “Yo VYY) a secondary power source (5535 B) At least one power source; one battery battery A battery A coupled between the battery and (OV 403 07 714 AYE) a voltage converter C the notification otification system (04 ¥ «YY +) appliance circuit) to generate a current voltage 201 405 717 (YY E (VY £) the voltage converter VY configured to generate a regulated DC voltage VY ean output voltage generated 04 0 + VYY the second power source Vo according to claim 0 ; Where the output power voltage of the battery arrangement “1” exceeds the minimum rated voltage (YY) of the at least one battery of the notification devices circuit. 0 -(Y +) notification appliance circuit ; | where: 0 -*+ 1 -includes the secondary power source The Y-series transformer offers two twelve-volt rated batteries, 11 volts of which are JS, on two T° Yaso rated batteries. 76 output power about 20 207 114 4 ( the voltage converter AS); Power © volts at least .an output of at least about 26 volts z the voltage wherein a voltage transformer 11 according to the protection arrangement 1 “YY £) a boost converter includes a boost converter (50 07 714 AYE ) converter to TY oY 1 <- the arrangement according to the element of protection oY where the output power voltage of the electrical power source (YA-071) an output voltage of the primary power source The regulated DC voltage exceeds a nominal voltage of the secondary power (YYY 77) © source | the voltage transformer 0 According to the protection arrangement arrangement - + 1 (0) e 4056 07 4 (AYE) voltage converter Y Lexie configured to generate the regulated DC voltage regulator ¥ | the second power by output voltage generated | varies by as much by up to five volts (00 € 404 707 NYY) © source .as 176 volts 1 y!' Where in it: 0 according to the protection element arrangement 7 - 1 | Includes three (€+¢) the secondary power source rma Y | volts and 11 Y-rated batteries; The voltage converter ( ) that provides an output power of less than YA volts. Z m " 0 0 —A 1 arrangement according to the element of protection (0) where the voltage transformer (00 406 707 714 84 ) converter ¥ includes a switching transformer .(Y+Y) converter ¥ ! 1 4- Arrangement according to protection element 11, where it contains a voltage transformer (OV + 403 707 7114 YE) converter that also includes: ¥ MOSFET key transistor ¢(\V - 55) MOSFET switch; And an inductive means of (VJ) input inductance coupled between the converter input 0 and the 'MOSFET' switch of the MOSFET switch (Q-11). 7 and rectifier 8 (Q-11) coupled Between a transformer output power and a MOSFET switch V transistor (Y= 5S) (¢4) and a capacitor (Th-10) coupled between the converter output and a standard 4 sreference voltage 0 and a PWM control unit (U-71) coupled to 1 MOSFET switch gate of a transiston ¢(\V - 55) MOSFET switch -01 1 Arrangement according to For protection element (1) 0 also includes: 0 Sot to adjust (YE 5S) a controllable switch between the secondary power source YY coupled between the secondary power source ¥ (1) 717 404 4 5) the converter input ¢ “ The controllable switch has a terminal + © tcontrol terminal 1 an enable circuit that has a logical enable logical enable input | Z” (18) VY The enable circuit operable (Ye) operates in conjunction coupled A with control input controllable switch 4 and monitoring (Q- 1).